mirror of
https://gitee.com/johng/gf
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92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package pgsql
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import (
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"context"
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"database/sql"
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"github.com/gogf/gf/v2/database/gdb"
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"github.com/gogf/gf/v2/errors/gcode"
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"github.com/gogf/gf/v2/errors/gerror"
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"github.com/gogf/gf/v2/text/gstr"
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)
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// DoInsert inserts or updates data for given table.
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// The list parameter must contain at least one record, which was previously validated.
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func (d *Driver) DoInsert(
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ctx context.Context,
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link gdb.Link, table string, list gdb.List, option gdb.DoInsertOption,
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) (result sql.Result, err error) {
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switch option.InsertOption {
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case
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gdb.InsertOptionReplace,
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gdb.InsertOptionSave:
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// PostgreSQL does not support REPLACE INTO syntax, use Save (ON CONFLICT ... DO UPDATE) instead.
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// Automatically detect primary keys if OnConflict is not specified.
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if len(option.OnConflict) == 0 {
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primaryKeys, err := d.getPrimaryKeys(ctx, table)
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if err != nil {
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return nil, gerror.WrapCode(
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gcode.CodeInternalError,
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err,
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`failed to get primary keys for Save/Replace operation`,
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)
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}
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foundPrimaryKey := false
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for _, conflictKey := range primaryKeys {
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if _, ok := list[0][conflictKey]; ok {
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foundPrimaryKey = true
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break
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}
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}
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if !foundPrimaryKey {
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return nil, gerror.NewCode(
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gcode.CodeMissingParameter,
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`Please specify conflict columns or ensure the record has a primary key for Save/Replace operation`,
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)
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}
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option.OnConflict = primaryKeys
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}
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// Treat Replace as Save operation
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option.InsertOption = gdb.InsertOptionSave
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case gdb.InsertOptionDefault:
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tableFields, err := d.GetCore().GetDB().TableFields(ctx, table)
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if err == nil {
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for _, field := range tableFields {
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if gstr.Equal(field.Key, "PRI") {
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pkField := *field
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ctx = context.WithValue(ctx, internalPrimaryKeyInCtx, pkField)
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break
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}
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}
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}
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default:
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}
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return d.Core.DoInsert(ctx, link, table, list, option)
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}
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// getPrimaryKeys retrieves the primary key field list of the table.
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// This method extracts primary key information from TableFields.
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func (d *Driver) getPrimaryKeys(ctx context.Context, table string) ([]string, error) {
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tableFields, err := d.TableFields(ctx, table)
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if err != nil {
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return nil, err
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}
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var primaryKeys []string
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for _, field := range tableFields {
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if gstr.Equal(field.Key, "PRI") {
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primaryKeys = append(primaryKeys, field.Name)
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}
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}
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return primaryKeys, nil
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}
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