gf/database/gdb/gdb_schema.go

60 lines
1.4 KiB
Go

// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
package gdb
// Schema is a schema object from which it can then create a Model.
type Schema struct {
db DB
tx *TX
schema string
}
// Schema creates and returns a schema.
func (c *Core) Schema(schema string) *Schema {
return &Schema{
db: c.DB,
schema: schema,
}
}
// Schema creates and returns a initialization model from schema,
// from which it can then create a Model.
func (tx *TX) Schema(schema string) *Schema {
return &Schema{
tx: tx,
schema: schema,
}
}
// Table creates and returns a new ORM model.
// The parameter <tables> can be more than one table names, like :
// "user", "user u", "user, user_detail", "user u, user_detail ud"
func (s *Schema) Table(table string) *Model {
var m *Model
if s.tx != nil {
m = s.tx.Table(table)
} else {
m = s.db.Table(table)
}
// Do not change the schema of the original db,
// it here creates a new db and changes its schema.
db, err := New(m.db.GetGroup())
if err != nil {
panic(err)
}
db.SetSchema(s.schema)
m.db = db
m.schema = s.schema
return m
}
// Model is alias of Core.Table.
// See Core.Table.
func (s *Schema) Model(table string) *Model {
return s.Table(table)
}