mirror of
https://github.com/go-gitea/gitea.git
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1033 lines
29 KiB
Go
Vendored
1033 lines
29 KiB
Go
Vendored
// Copyright 2015 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package statements
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import (
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"database/sql/driver"
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"errors"
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"fmt"
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"math/big"
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"reflect"
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"strings"
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"time"
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"xorm.io/builder"
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"xorm.io/xorm/contexts"
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"xorm.io/xorm/convert"
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"xorm.io/xorm/dialects"
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"xorm.io/xorm/internal/json"
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"xorm.io/xorm/internal/utils"
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"xorm.io/xorm/schemas"
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"xorm.io/xorm/tags"
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)
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var (
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// ErrConditionType condition type unsupported
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ErrConditionType = errors.New("Unsupported condition type")
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// ErrUnSupportedSQLType parameter of SQL is not supported
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ErrUnSupportedSQLType = errors.New("Unsupported sql type")
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// ErrUnSupportedType unsupported error
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ErrUnSupportedType = errors.New("Unsupported type error")
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// ErrTableNotFound table not found error
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ErrTableNotFound = errors.New("Table not found")
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)
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// Statement save all the sql info for executing SQL
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type Statement struct {
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RefTable *schemas.Table
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dialect dialects.Dialect
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defaultTimeZone *time.Location
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tagParser *tags.Parser
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Start int
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LimitN *int
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idParam schemas.PK
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OrderStr string
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JoinStr string
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joinArgs []interface{}
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GroupByStr string
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HavingStr string
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SelectStr string
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useAllCols bool
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AltTableName string
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tableName string
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RawSQL string
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RawParams []interface{}
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UseCascade bool
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UseAutoJoin bool
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StoreEngine string
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Charset string
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UseCache bool
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UseAutoTime bool
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NoAutoCondition bool
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IsDistinct bool
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IsForUpdate bool
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TableAlias string
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allUseBool bool
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CheckVersion bool
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unscoped bool
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ColumnMap columnMap
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OmitColumnMap columnMap
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MustColumnMap map[string]bool
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NullableMap map[string]bool
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IncrColumns exprParams
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DecrColumns exprParams
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ExprColumns exprParams
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cond builder.Cond
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BufferSize int
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Context contexts.ContextCache
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LastError error
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}
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// NewStatement creates a new statement
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func NewStatement(dialect dialects.Dialect, tagParser *tags.Parser, defaultTimeZone *time.Location) *Statement {
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statement := &Statement{
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dialect: dialect,
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tagParser: tagParser,
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defaultTimeZone: defaultTimeZone,
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}
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statement.Reset()
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return statement
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}
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// SetTableName set table name
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func (statement *Statement) SetTableName(tableName string) {
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statement.tableName = tableName
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}
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// GenRawSQL generates correct raw sql
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func (statement *Statement) GenRawSQL() string {
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return statement.ReplaceQuote(statement.RawSQL)
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}
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// GenCondSQL generates condition SQL
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func (statement *Statement) GenCondSQL(condOrBuilder interface{}) (string, []interface{}, error) {
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condSQL, condArgs, err := builder.ToSQL(condOrBuilder)
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if err != nil {
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return "", nil, err
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}
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return statement.ReplaceQuote(condSQL), condArgs, nil
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}
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// ReplaceQuote replace sql key words with quote
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func (statement *Statement) ReplaceQuote(sql string) string {
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if sql == "" || statement.dialect.URI().DBType == schemas.MYSQL ||
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statement.dialect.URI().DBType == schemas.SQLITE {
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return sql
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}
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return statement.dialect.Quoter().Replace(sql)
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}
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// SetContextCache sets context cache
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func (statement *Statement) SetContextCache(ctxCache contexts.ContextCache) {
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statement.Context = ctxCache
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}
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// Reset reset all the statement's fields
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func (statement *Statement) Reset() {
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statement.RefTable = nil
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statement.Start = 0
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statement.LimitN = nil
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statement.OrderStr = ""
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statement.UseCascade = true
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statement.JoinStr = ""
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statement.joinArgs = make([]interface{}, 0)
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statement.GroupByStr = ""
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statement.HavingStr = ""
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statement.ColumnMap = columnMap{}
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statement.OmitColumnMap = columnMap{}
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statement.AltTableName = ""
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statement.tableName = ""
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statement.idParam = nil
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statement.RawSQL = ""
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statement.RawParams = make([]interface{}, 0)
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statement.UseCache = true
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statement.UseAutoTime = true
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statement.NoAutoCondition = false
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statement.IsDistinct = false
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statement.IsForUpdate = false
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statement.TableAlias = ""
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statement.SelectStr = ""
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statement.allUseBool = false
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statement.useAllCols = false
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statement.MustColumnMap = make(map[string]bool)
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statement.NullableMap = make(map[string]bool)
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statement.CheckVersion = true
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statement.unscoped = false
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statement.IncrColumns = exprParams{}
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statement.DecrColumns = exprParams{}
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statement.ExprColumns = exprParams{}
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statement.cond = builder.NewCond()
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statement.BufferSize = 0
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statement.Context = nil
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statement.LastError = nil
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}
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// SetNoAutoCondition if you do not want convert bean's field as query condition, then use this function
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func (statement *Statement) SetNoAutoCondition(no ...bool) *Statement {
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statement.NoAutoCondition = true
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if len(no) > 0 {
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statement.NoAutoCondition = no[0]
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}
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return statement
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}
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// Alias set the table alias
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func (statement *Statement) Alias(alias string) *Statement {
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statement.TableAlias = alias
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return statement
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}
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// SQL adds raw sql statement
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func (statement *Statement) SQL(query interface{}, args ...interface{}) *Statement {
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switch query.(type) {
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case (*builder.Builder):
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var err error
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statement.RawSQL, statement.RawParams, err = query.(*builder.Builder).ToSQL()
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if err != nil {
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statement.LastError = err
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}
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case string:
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statement.RawSQL = query.(string)
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statement.RawParams = args
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default:
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statement.LastError = ErrUnSupportedSQLType
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}
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return statement
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}
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// Where add Where statement
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func (statement *Statement) Where(query interface{}, args ...interface{}) *Statement {
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return statement.And(query, args...)
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}
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func (statement *Statement) quote(s string) string {
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return statement.dialect.Quoter().Quote(s)
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}
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// And add Where & and statement
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func (statement *Statement) And(query interface{}, args ...interface{}) *Statement {
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switch qr := query.(type) {
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case string:
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cond := builder.Expr(qr, args...)
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statement.cond = statement.cond.And(cond)
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case map[string]interface{}:
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cond := make(builder.Eq)
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for k, v := range qr {
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cond[statement.quote(k)] = v
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}
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statement.cond = statement.cond.And(cond)
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case builder.Cond:
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statement.cond = statement.cond.And(qr)
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for _, v := range args {
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if vv, ok := v.(builder.Cond); ok {
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statement.cond = statement.cond.And(vv)
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}
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}
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default:
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statement.LastError = ErrConditionType
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}
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return statement
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}
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// Or add Where & Or statement
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func (statement *Statement) Or(query interface{}, args ...interface{}) *Statement {
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switch qr := query.(type) {
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case string:
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cond := builder.Expr(qr, args...)
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statement.cond = statement.cond.Or(cond)
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case map[string]interface{}:
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cond := make(builder.Eq)
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for k, v := range qr {
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cond[statement.quote(k)] = v
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}
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statement.cond = statement.cond.Or(cond)
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case builder.Cond:
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statement.cond = statement.cond.Or(qr)
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for _, v := range args {
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if vv, ok := v.(builder.Cond); ok {
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statement.cond = statement.cond.Or(vv)
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}
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}
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default:
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statement.LastError = ErrConditionType
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}
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return statement
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}
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// In generate "Where column IN (?) " statement
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func (statement *Statement) In(column string, args ...interface{}) *Statement {
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in := builder.In(statement.quote(column), args...)
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statement.cond = statement.cond.And(in)
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return statement
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}
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// NotIn generate "Where column NOT IN (?) " statement
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func (statement *Statement) NotIn(column string, args ...interface{}) *Statement {
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notIn := builder.NotIn(statement.quote(column), args...)
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statement.cond = statement.cond.And(notIn)
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return statement
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}
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// SetRefValue set ref value
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func (statement *Statement) SetRefValue(v reflect.Value) error {
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var err error
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statement.RefTable, err = statement.tagParser.ParseWithCache(reflect.Indirect(v))
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if err != nil {
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return err
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}
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statement.tableName = dialects.FullTableName(statement.dialect, statement.tagParser.GetTableMapper(), v, true)
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return nil
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}
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func rValue(bean interface{}) reflect.Value {
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return reflect.Indirect(reflect.ValueOf(bean))
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}
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// SetRefBean set ref bean
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func (statement *Statement) SetRefBean(bean interface{}) error {
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var err error
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statement.RefTable, err = statement.tagParser.ParseWithCache(rValue(bean))
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if err != nil {
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return err
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}
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statement.tableName = dialects.FullTableName(statement.dialect, statement.tagParser.GetTableMapper(), bean, true)
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return nil
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}
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func (statement *Statement) needTableName() bool {
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return len(statement.JoinStr) > 0
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}
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func (statement *Statement) colName(col *schemas.Column, tableName string) string {
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if statement.needTableName() {
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var nm = tableName
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if len(statement.TableAlias) > 0 {
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nm = statement.TableAlias
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}
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return statement.quote(nm) + "." + statement.quote(col.Name)
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}
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return statement.quote(col.Name)
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}
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// TableName return current tableName
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func (statement *Statement) TableName() string {
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if statement.AltTableName != "" {
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return statement.AltTableName
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}
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return statement.tableName
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}
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// Incr Generate "Update ... Set column = column + arg" statement
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func (statement *Statement) Incr(column string, arg ...interface{}) *Statement {
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if len(arg) > 0 {
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statement.IncrColumns.Add(column, arg[0])
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} else {
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statement.IncrColumns.Add(column, 1)
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}
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return statement
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}
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// Decr Generate "Update ... Set column = column - arg" statement
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func (statement *Statement) Decr(column string, arg ...interface{}) *Statement {
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if len(arg) > 0 {
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statement.DecrColumns.Add(column, arg[0])
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} else {
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statement.DecrColumns.Add(column, 1)
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}
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return statement
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}
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// SetExpr Generate "Update ... Set column = {expression}" statement
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func (statement *Statement) SetExpr(column string, expression interface{}) *Statement {
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if e, ok := expression.(string); ok {
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statement.ExprColumns.Add(column, statement.dialect.Quoter().Replace(e))
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} else {
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statement.ExprColumns.Add(column, expression)
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}
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return statement
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}
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// Distinct generates "DISTINCT col1, col2 " statement
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func (statement *Statement) Distinct(columns ...string) *Statement {
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statement.IsDistinct = true
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statement.Cols(columns...)
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return statement
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}
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// ForUpdate generates "SELECT ... FOR UPDATE" statement
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func (statement *Statement) ForUpdate() *Statement {
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statement.IsForUpdate = true
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return statement
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}
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// Select replace select
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func (statement *Statement) Select(str string) *Statement {
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statement.SelectStr = statement.ReplaceQuote(str)
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return statement
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}
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func col2NewCols(columns ...string) []string {
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newColumns := make([]string, 0, len(columns))
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for _, col := range columns {
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col = strings.Replace(col, "`", "", -1)
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col = strings.Replace(col, `"`, "", -1)
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ccols := strings.Split(col, ",")
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for _, c := range ccols {
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newColumns = append(newColumns, strings.TrimSpace(c))
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}
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}
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return newColumns
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}
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// Cols generate "col1, col2" statement
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func (statement *Statement) Cols(columns ...string) *Statement {
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cols := col2NewCols(columns...)
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for _, nc := range cols {
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statement.ColumnMap.Add(nc)
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}
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return statement
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}
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// ColumnStr returns column string
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func (statement *Statement) ColumnStr() string {
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return statement.dialect.Quoter().Join(statement.ColumnMap, ", ")
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}
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// AllCols update use only: update all columns
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func (statement *Statement) AllCols() *Statement {
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statement.useAllCols = true
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return statement
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}
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// MustCols update use only: must update columns
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func (statement *Statement) MustCols(columns ...string) *Statement {
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newColumns := col2NewCols(columns...)
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for _, nc := range newColumns {
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statement.MustColumnMap[strings.ToLower(nc)] = true
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}
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return statement
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}
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// UseBool indicates that use bool fields as update contents and query contiditions
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func (statement *Statement) UseBool(columns ...string) *Statement {
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if len(columns) > 0 {
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statement.MustCols(columns...)
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} else {
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statement.allUseBool = true
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}
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return statement
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}
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// Omit do not use the columns
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func (statement *Statement) Omit(columns ...string) {
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newColumns := col2NewCols(columns...)
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for _, nc := range newColumns {
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statement.OmitColumnMap = append(statement.OmitColumnMap, nc)
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}
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}
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// Nullable Update use only: update columns to null when value is nullable and zero-value
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func (statement *Statement) Nullable(columns ...string) {
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newColumns := col2NewCols(columns...)
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for _, nc := range newColumns {
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statement.NullableMap[strings.ToLower(nc)] = true
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}
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}
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// Top generate LIMIT limit statement
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func (statement *Statement) Top(limit int) *Statement {
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statement.Limit(limit)
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return statement
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}
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// Limit generate LIMIT start, limit statement
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func (statement *Statement) Limit(limit int, start ...int) *Statement {
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statement.LimitN = &limit
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if len(start) > 0 {
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statement.Start = start[0]
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}
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return statement
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}
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// OrderBy generate "Order By order" statement
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func (statement *Statement) OrderBy(order string) *Statement {
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if len(statement.OrderStr) > 0 {
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statement.OrderStr += ", "
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}
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statement.OrderStr += statement.ReplaceQuote(order)
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return statement
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}
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// Desc generate `ORDER BY xx DESC`
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func (statement *Statement) Desc(colNames ...string) *Statement {
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var buf strings.Builder
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if len(statement.OrderStr) > 0 {
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fmt.Fprint(&buf, statement.OrderStr, ", ")
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}
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for i, col := range colNames {
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if i > 0 {
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fmt.Fprint(&buf, ", ")
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}
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statement.dialect.Quoter().QuoteTo(&buf, col)
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fmt.Fprint(&buf, " DESC")
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}
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statement.OrderStr = buf.String()
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return statement
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}
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// Asc provide asc order by query condition, the input parameters are columns.
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func (statement *Statement) Asc(colNames ...string) *Statement {
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var buf strings.Builder
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if len(statement.OrderStr) > 0 {
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fmt.Fprint(&buf, statement.OrderStr, ", ")
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}
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for i, col := range colNames {
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if i > 0 {
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fmt.Fprint(&buf, ", ")
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}
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statement.dialect.Quoter().QuoteTo(&buf, col)
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fmt.Fprint(&buf, " ASC")
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}
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statement.OrderStr = buf.String()
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return statement
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}
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// Conds returns condtions
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func (statement *Statement) Conds() builder.Cond {
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return statement.cond
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}
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// SetTable tempororily set table name, the parameter could be a string or a pointer of struct
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func (statement *Statement) SetTable(tableNameOrBean interface{}) error {
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v := rValue(tableNameOrBean)
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t := v.Type()
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if t.Kind() == reflect.Struct {
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var err error
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statement.RefTable, err = statement.tagParser.ParseWithCache(v)
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if err != nil {
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return err
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}
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}
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statement.AltTableName = dialects.FullTableName(statement.dialect, statement.tagParser.GetTableMapper(), tableNameOrBean, true)
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return nil
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}
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// Join The joinOP should be one of INNER, LEFT OUTER, CROSS etc - this will be prepended to JOIN
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func (statement *Statement) Join(joinOP string, tablename interface{}, condition string, args ...interface{}) *Statement {
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var buf strings.Builder
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if len(statement.JoinStr) > 0 {
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fmt.Fprintf(&buf, "%v %v JOIN ", statement.JoinStr, joinOP)
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} else {
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fmt.Fprintf(&buf, "%v JOIN ", joinOP)
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}
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switch tp := tablename.(type) {
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case builder.Builder:
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subSQL, subQueryArgs, err := tp.ToSQL()
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if err != nil {
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statement.LastError = err
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return statement
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}
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fields := strings.Split(tp.TableName(), ".")
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aliasName := statement.dialect.Quoter().Trim(fields[len(fields)-1])
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aliasName = schemas.CommonQuoter.Trim(aliasName)
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fmt.Fprintf(&buf, "(%s) %s ON %v", statement.ReplaceQuote(subSQL), aliasName, statement.ReplaceQuote(condition))
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statement.joinArgs = append(statement.joinArgs, subQueryArgs...)
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case *builder.Builder:
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subSQL, subQueryArgs, err := tp.ToSQL()
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if err != nil {
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statement.LastError = err
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return statement
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}
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|
fields := strings.Split(tp.TableName(), ".")
|
|
aliasName := statement.dialect.Quoter().Trim(fields[len(fields)-1])
|
|
aliasName = schemas.CommonQuoter.Trim(aliasName)
|
|
|
|
fmt.Fprintf(&buf, "(%s) %s ON %v", statement.ReplaceQuote(subSQL), aliasName, statement.ReplaceQuote(condition))
|
|
statement.joinArgs = append(statement.joinArgs, subQueryArgs...)
|
|
default:
|
|
tbName := dialects.FullTableName(statement.dialect, statement.tagParser.GetTableMapper(), tablename, true)
|
|
if !utils.IsSubQuery(tbName) {
|
|
var buf strings.Builder
|
|
statement.dialect.Quoter().QuoteTo(&buf, tbName)
|
|
tbName = buf.String()
|
|
}
|
|
fmt.Fprintf(&buf, "%s ON %v", tbName, statement.ReplaceQuote(condition))
|
|
}
|
|
|
|
statement.JoinStr = buf.String()
|
|
statement.joinArgs = append(statement.joinArgs, args...)
|
|
return statement
|
|
}
|
|
|
|
// tbNameNoSchema get some table's table name
|
|
func (statement *Statement) tbNameNoSchema(table *schemas.Table) string {
|
|
if len(statement.AltTableName) > 0 {
|
|
return statement.AltTableName
|
|
}
|
|
|
|
return table.Name
|
|
}
|
|
|
|
// GroupBy generate "Group By keys" statement
|
|
func (statement *Statement) GroupBy(keys string) *Statement {
|
|
statement.GroupByStr = statement.ReplaceQuote(keys)
|
|
return statement
|
|
}
|
|
|
|
// Having generate "Having conditions" statement
|
|
func (statement *Statement) Having(conditions string) *Statement {
|
|
statement.HavingStr = fmt.Sprintf("HAVING %v", statement.ReplaceQuote(conditions))
|
|
return statement
|
|
}
|
|
|
|
// SetUnscoped always disable struct tag "deleted"
|
|
func (statement *Statement) SetUnscoped() *Statement {
|
|
statement.unscoped = true
|
|
return statement
|
|
}
|
|
|
|
// GetUnscoped return true if it's unscoped
|
|
func (statement *Statement) GetUnscoped() bool {
|
|
return statement.unscoped
|
|
}
|
|
|
|
func (statement *Statement) genColumnStr() string {
|
|
if statement.RefTable == nil {
|
|
return ""
|
|
}
|
|
|
|
var buf strings.Builder
|
|
columns := statement.RefTable.Columns()
|
|
|
|
for _, col := range columns {
|
|
if statement.OmitColumnMap.Contain(col.Name) {
|
|
continue
|
|
}
|
|
|
|
if len(statement.ColumnMap) > 0 && !statement.ColumnMap.Contain(col.Name) {
|
|
continue
|
|
}
|
|
|
|
if col.MapType == schemas.ONLYTODB {
|
|
continue
|
|
}
|
|
|
|
if buf.Len() != 0 {
|
|
buf.WriteString(", ")
|
|
}
|
|
|
|
if statement.JoinStr != "" {
|
|
if statement.TableAlias != "" {
|
|
buf.WriteString(statement.TableAlias)
|
|
} else {
|
|
buf.WriteString(statement.TableName())
|
|
}
|
|
|
|
buf.WriteString(".")
|
|
}
|
|
|
|
statement.dialect.Quoter().QuoteTo(&buf, col.Name)
|
|
}
|
|
|
|
return buf.String()
|
|
}
|
|
|
|
// GenCreateTableSQL generated create table SQL
|
|
func (statement *Statement) GenCreateTableSQL() []string {
|
|
statement.RefTable.StoreEngine = statement.StoreEngine
|
|
statement.RefTable.Charset = statement.Charset
|
|
s, _ := statement.dialect.CreateTableSQL(statement.RefTable, statement.TableName())
|
|
return s
|
|
}
|
|
|
|
// GenIndexSQL generated create index SQL
|
|
func (statement *Statement) GenIndexSQL() []string {
|
|
var sqls []string
|
|
tbName := statement.TableName()
|
|
for _, index := range statement.RefTable.Indexes {
|
|
if index.Type == schemas.IndexType {
|
|
sql := statement.dialect.CreateIndexSQL(tbName, index)
|
|
sqls = append(sqls, sql)
|
|
}
|
|
}
|
|
return sqls
|
|
}
|
|
|
|
// GenUniqueSQL generates unique SQL
|
|
func (statement *Statement) GenUniqueSQL() []string {
|
|
var sqls []string
|
|
tbName := statement.TableName()
|
|
for _, index := range statement.RefTable.Indexes {
|
|
if index.Type == schemas.UniqueType {
|
|
sql := statement.dialect.CreateIndexSQL(tbName, index)
|
|
sqls = append(sqls, sql)
|
|
}
|
|
}
|
|
return sqls
|
|
}
|
|
|
|
// GenDelIndexSQL generate delete index SQL
|
|
func (statement *Statement) GenDelIndexSQL() []string {
|
|
var sqls []string
|
|
tbName := statement.TableName()
|
|
idx := strings.Index(tbName, ".")
|
|
if idx > -1 {
|
|
tbName = tbName[idx+1:]
|
|
}
|
|
for _, index := range statement.RefTable.Indexes {
|
|
sqls = append(sqls, statement.dialect.DropIndexSQL(tbName, index))
|
|
}
|
|
return sqls
|
|
}
|
|
|
|
func (statement *Statement) asDBCond(fieldValue reflect.Value, fieldType reflect.Type, col *schemas.Column, allUseBool, requiredField bool) (interface{}, bool, error) {
|
|
switch fieldType.Kind() {
|
|
case reflect.Ptr:
|
|
if fieldValue.IsNil() {
|
|
return nil, true, nil
|
|
}
|
|
return statement.asDBCond(fieldValue.Elem(), fieldType.Elem(), col, allUseBool, requiredField)
|
|
case reflect.Bool:
|
|
if allUseBool || requiredField {
|
|
return fieldValue.Interface(), true, nil
|
|
}
|
|
// if a bool in a struct, it will not be as a condition because it default is false,
|
|
// please use Where() instead
|
|
return nil, false, nil
|
|
case reflect.String:
|
|
if !requiredField && fieldValue.String() == "" {
|
|
return nil, false, nil
|
|
}
|
|
// for MyString, should convert to string or panic
|
|
if fieldType.String() != reflect.String.String() {
|
|
return fieldValue.String(), true, nil
|
|
}
|
|
return fieldValue.Interface(), true, nil
|
|
case reflect.Int8, reflect.Int16, reflect.Int, reflect.Int32, reflect.Int64:
|
|
if !requiredField && fieldValue.Int() == 0 {
|
|
return nil, false, nil
|
|
}
|
|
return fieldValue.Interface(), true, nil
|
|
case reflect.Float32, reflect.Float64:
|
|
if !requiredField && fieldValue.Float() == 0.0 {
|
|
return nil, false, nil
|
|
}
|
|
return fieldValue.Interface(), true, nil
|
|
case reflect.Uint8, reflect.Uint16, reflect.Uint, reflect.Uint32, reflect.Uint64:
|
|
if !requiredField && fieldValue.Uint() == 0 {
|
|
return nil, false, nil
|
|
}
|
|
return fieldValue.Interface(), true, nil
|
|
case reflect.Struct:
|
|
if fieldType.ConvertibleTo(schemas.TimeType) {
|
|
t := fieldValue.Convert(schemas.TimeType).Interface().(time.Time)
|
|
if !requiredField && (t.IsZero() || !fieldValue.IsValid()) {
|
|
return nil, false, nil
|
|
}
|
|
res, err := dialects.FormatColumnTime(statement.dialect, statement.defaultTimeZone, col, t)
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
return res, true, nil
|
|
} else if fieldType.ConvertibleTo(schemas.BigFloatType) {
|
|
t := fieldValue.Convert(schemas.BigFloatType).Interface().(big.Float)
|
|
v := t.String()
|
|
if v == "0" {
|
|
return nil, false, nil
|
|
}
|
|
return t.String(), true, nil
|
|
} else if _, ok := reflect.New(fieldType).Interface().(convert.Conversion); ok {
|
|
return nil, false, nil
|
|
} else if valNul, ok := fieldValue.Interface().(driver.Valuer); ok {
|
|
val, _ := valNul.Value()
|
|
if val == nil && !requiredField {
|
|
return nil, false, nil
|
|
}
|
|
return val, true, nil
|
|
} else {
|
|
if col.IsJSON {
|
|
if col.SQLType.IsText() {
|
|
bytes, err := json.DefaultJSONHandler.Marshal(fieldValue.Interface())
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
return string(bytes), true, nil
|
|
} else if col.SQLType.IsBlob() {
|
|
var bytes []byte
|
|
var err error
|
|
bytes, err = json.DefaultJSONHandler.Marshal(fieldValue.Interface())
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
return bytes, true, nil
|
|
}
|
|
} else {
|
|
table, err := statement.tagParser.ParseWithCache(fieldValue)
|
|
if err != nil {
|
|
return fieldValue.Interface(), true, nil
|
|
}
|
|
|
|
if len(table.PrimaryKeys) == 1 {
|
|
pkField := reflect.Indirect(fieldValue).FieldByName(table.PKColumns()[0].FieldName)
|
|
// fix non-int pk issues
|
|
//if pkField.Int() != 0 {
|
|
if pkField.IsValid() && !utils.IsZero(pkField.Interface()) {
|
|
return pkField.Interface(), true, nil
|
|
}
|
|
return nil, false, nil
|
|
}
|
|
return nil, false, fmt.Errorf("not supported %v as %v", fieldValue.Interface(), table.PrimaryKeys)
|
|
}
|
|
}
|
|
case reflect.Array:
|
|
return nil, false, nil
|
|
case reflect.Slice, reflect.Map:
|
|
if fieldValue == reflect.Zero(fieldType) {
|
|
return nil, false, nil
|
|
}
|
|
if fieldValue.IsNil() || !fieldValue.IsValid() || fieldValue.Len() == 0 {
|
|
return nil, false, nil
|
|
}
|
|
|
|
if col.SQLType.IsText() {
|
|
bytes, err := json.DefaultJSONHandler.Marshal(fieldValue.Interface())
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
return string(bytes), true, nil
|
|
} else if col.SQLType.IsBlob() {
|
|
var bytes []byte
|
|
var err error
|
|
if (fieldType.Kind() == reflect.Array || fieldType.Kind() == reflect.Slice) &&
|
|
fieldType.Elem().Kind() == reflect.Uint8 {
|
|
if fieldValue.Len() > 0 {
|
|
return fieldValue.Bytes(), true, nil
|
|
}
|
|
return nil, false, nil
|
|
}
|
|
bytes, err = json.DefaultJSONHandler.Marshal(fieldValue.Interface())
|
|
if err != nil {
|
|
return nil, false, err
|
|
}
|
|
return bytes, true, nil
|
|
}
|
|
return nil, false, nil
|
|
}
|
|
return fieldValue.Interface(), true, nil
|
|
}
|
|
|
|
func (statement *Statement) buildConds2(table *schemas.Table, bean interface{},
|
|
includeVersion bool, includeUpdated bool, includeNil bool,
|
|
includeAutoIncr bool, allUseBool bool, useAllCols bool, unscoped bool,
|
|
mustColumnMap map[string]bool, tableName, aliasName string, addedTableName bool) (builder.Cond, error) {
|
|
var conds []builder.Cond
|
|
for _, col := range table.Columns() {
|
|
if !includeVersion && col.IsVersion {
|
|
continue
|
|
}
|
|
if !includeUpdated && col.IsUpdated {
|
|
continue
|
|
}
|
|
if !includeAutoIncr && col.IsAutoIncrement {
|
|
continue
|
|
}
|
|
|
|
if statement.dialect.URI().DBType == schemas.MSSQL && (col.SQLType.Name == schemas.Text ||
|
|
col.SQLType.IsBlob() || col.SQLType.Name == schemas.TimeStampz) {
|
|
continue
|
|
}
|
|
if col.IsJSON {
|
|
continue
|
|
}
|
|
|
|
var colName string
|
|
if addedTableName {
|
|
var nm = tableName
|
|
if len(aliasName) > 0 {
|
|
nm = aliasName
|
|
}
|
|
colName = statement.quote(nm) + "." + statement.quote(col.Name)
|
|
} else {
|
|
colName = statement.quote(col.Name)
|
|
}
|
|
|
|
fieldValuePtr, err := col.ValueOf(bean)
|
|
if err != nil {
|
|
if !strings.Contains(err.Error(), "is not valid") {
|
|
//engine.logger.Warn(err)
|
|
}
|
|
continue
|
|
} else if fieldValuePtr == nil {
|
|
continue
|
|
}
|
|
|
|
if col.IsDeleted && !unscoped { // tag "deleted" is enabled
|
|
conds = append(conds, statement.CondDeleted(col))
|
|
}
|
|
|
|
fieldValue := *fieldValuePtr
|
|
if fieldValue.Interface() == nil {
|
|
continue
|
|
}
|
|
|
|
requiredField := useAllCols
|
|
if b, ok := getFlagForColumn(mustColumnMap, col); ok {
|
|
if b {
|
|
requiredField = true
|
|
} else {
|
|
continue
|
|
}
|
|
}
|
|
|
|
fieldType := reflect.TypeOf(fieldValue.Interface())
|
|
if fieldType.Kind() == reflect.Ptr {
|
|
if fieldValue.IsNil() {
|
|
if includeNil {
|
|
conds = append(conds, builder.Eq{colName: nil})
|
|
}
|
|
continue
|
|
} else if !fieldValue.IsValid() {
|
|
continue
|
|
} else {
|
|
// dereference ptr type to instance type
|
|
fieldValue = fieldValue.Elem()
|
|
fieldType = reflect.TypeOf(fieldValue.Interface())
|
|
requiredField = true
|
|
}
|
|
}
|
|
|
|
val, ok, err := statement.asDBCond(fieldValue, fieldType, col, allUseBool, requiredField)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if !ok {
|
|
continue
|
|
}
|
|
|
|
conds = append(conds, builder.Eq{colName: val})
|
|
}
|
|
|
|
return builder.And(conds...), nil
|
|
}
|
|
|
|
// BuildConds builds condition
|
|
func (statement *Statement) BuildConds(table *schemas.Table, bean interface{}, includeVersion bool, includeUpdated bool, includeNil bool, includeAutoIncr bool, addedTableName bool) (builder.Cond, error) {
|
|
return statement.buildConds2(table, bean, includeVersion, includeUpdated, includeNil, includeAutoIncr, statement.allUseBool, statement.useAllCols,
|
|
statement.unscoped, statement.MustColumnMap, statement.TableName(), statement.TableAlias, addedTableName)
|
|
}
|
|
|
|
func (statement *Statement) mergeConds(bean interface{}) error {
|
|
if !statement.NoAutoCondition && statement.RefTable != nil {
|
|
var addedTableName = (len(statement.JoinStr) > 0)
|
|
autoCond, err := statement.BuildConds(statement.RefTable, bean, true, true, false, true, addedTableName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
statement.cond = statement.cond.And(autoCond)
|
|
}
|
|
|
|
return statement.ProcessIDParam()
|
|
}
|
|
|
|
// GenConds generates conditions
|
|
func (statement *Statement) GenConds(bean interface{}) (string, []interface{}, error) {
|
|
if err := statement.mergeConds(bean); err != nil {
|
|
return "", nil, err
|
|
}
|
|
|
|
return statement.GenCondSQL(statement.cond)
|
|
}
|
|
|
|
func (statement *Statement) quoteColumnStr(columnStr string) string {
|
|
columns := strings.Split(columnStr, ",")
|
|
return statement.dialect.Quoter().Join(columns, ",")
|
|
}
|
|
|
|
// ConvertSQLOrArgs converts sql or args
|
|
func (statement *Statement) ConvertSQLOrArgs(sqlOrArgs ...interface{}) (string, []interface{}, error) {
|
|
sql, args, err := statement.convertSQLOrArgs(sqlOrArgs...)
|
|
if err != nil {
|
|
return "", nil, err
|
|
}
|
|
return statement.ReplaceQuote(sql), args, nil
|
|
}
|
|
|
|
func (statement *Statement) convertSQLOrArgs(sqlOrArgs ...interface{}) (string, []interface{}, error) {
|
|
switch sqlOrArgs[0].(type) {
|
|
case string:
|
|
if len(sqlOrArgs) > 1 {
|
|
var newArgs = make([]interface{}, 0, len(sqlOrArgs)-1)
|
|
for _, arg := range sqlOrArgs[1:] {
|
|
if v, ok := arg.(*time.Time); ok {
|
|
newArgs = append(newArgs, v.In(statement.defaultTimeZone).Format("2006-01-02 15:04:05"))
|
|
} else if v, ok := arg.(time.Time); ok {
|
|
newArgs = append(newArgs, v.In(statement.defaultTimeZone).Format("2006-01-02 15:04:05"))
|
|
} else {
|
|
newArgs = append(newArgs, arg)
|
|
}
|
|
}
|
|
return sqlOrArgs[0].(string), newArgs, nil
|
|
}
|
|
return sqlOrArgs[0].(string), sqlOrArgs[1:], nil
|
|
case *builder.Builder:
|
|
return sqlOrArgs[0].(*builder.Builder).ToSQL()
|
|
case builder.Builder:
|
|
bd := sqlOrArgs[0].(builder.Builder)
|
|
return bd.ToSQL()
|
|
}
|
|
|
|
return "", nil, ErrUnSupportedType
|
|
}
|
|
|
|
func (statement *Statement) joinColumns(cols []*schemas.Column, includeTableName bool) string {
|
|
var colnames = make([]string, len(cols))
|
|
for i, col := range cols {
|
|
if includeTableName {
|
|
colnames[i] = statement.quote(statement.TableName()) +
|
|
"." + statement.quote(col.Name)
|
|
} else {
|
|
colnames[i] = statement.quote(col.Name)
|
|
}
|
|
}
|
|
return strings.Join(colnames, ", ")
|
|
}
|
|
|
|
// CondDeleted returns the conditions whether a record is soft deleted.
|
|
func (statement *Statement) CondDeleted(col *schemas.Column) builder.Cond {
|
|
var colName = statement.quote(col.Name)
|
|
if statement.JoinStr != "" {
|
|
var prefix string
|
|
if statement.TableAlias != "" {
|
|
prefix = statement.TableAlias
|
|
} else {
|
|
prefix = statement.TableName()
|
|
}
|
|
colName = statement.quote(prefix) + "." + statement.quote(col.Name)
|
|
}
|
|
var cond = builder.NewCond()
|
|
if col.SQLType.IsNumeric() {
|
|
cond = builder.Eq{colName: 0}
|
|
} else {
|
|
// FIXME: mssql: The conversion of a nvarchar data type to a datetime data type resulted in an out-of-range value.
|
|
if statement.dialect.URI().DBType != schemas.MSSQL {
|
|
cond = builder.Eq{colName: utils.ZeroTime1}
|
|
}
|
|
}
|
|
|
|
if col.Nullable {
|
|
cond = cond.Or(builder.IsNull{colName})
|
|
}
|
|
|
|
return cond
|
|
}
|