mirror of
https://github.com/astaxie/beego.git
synced 2024-11-18 10:10:54 +00:00
295 lines
7.0 KiB
Go
295 lines
7.0 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package orm
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
type dbIndex struct {
|
|
Table string
|
|
Name string
|
|
SQL string
|
|
}
|
|
|
|
// create database drop sql.
|
|
func getDbDropSQL(al *alias) (sqls []string) {
|
|
if len(modelCache.cache) == 0 {
|
|
fmt.Println("no Model found, need register your model")
|
|
os.Exit(2)
|
|
}
|
|
|
|
Q := al.DbBaser.TableQuote()
|
|
|
|
for _, mi := range modelCache.allOrdered() {
|
|
sqls = append(sqls, fmt.Sprintf(`DROP TABLE IF EXISTS %s%s%s`, Q, mi.table, Q))
|
|
}
|
|
return sqls
|
|
}
|
|
|
|
// get database column type string.
|
|
func getColumnTyp(al *alias, fi *fieldInfo) (col string) {
|
|
T := al.DbBaser.DbTypes()
|
|
fieldType := fi.fieldType
|
|
fieldSize := fi.size
|
|
|
|
checkColumn:
|
|
switch fieldType {
|
|
case TypeBooleanField:
|
|
col = T["bool"]
|
|
case TypeCharField:
|
|
col = fmt.Sprintf(T["string"], fieldSize)
|
|
case TypeTextField:
|
|
col = T["string-text"]
|
|
case TypeDateField:
|
|
col = T["time.Time-date"]
|
|
case TypeDateTimeField:
|
|
col = T["time.Time"]
|
|
case TypeBitField:
|
|
col = T["int8"]
|
|
case TypeSmallIntegerField:
|
|
col = T["int16"]
|
|
case TypeIntegerField:
|
|
col = T["int32"]
|
|
case TypeBigIntegerField:
|
|
if al.Driver == DRSqlite {
|
|
fieldType = TypeIntegerField
|
|
goto checkColumn
|
|
}
|
|
col = T["int64"]
|
|
case TypePositiveBitField:
|
|
col = T["uint8"]
|
|
case TypePositiveSmallIntegerField:
|
|
col = T["uint16"]
|
|
case TypePositiveIntegerField:
|
|
col = T["uint32"]
|
|
case TypePositiveBigIntegerField:
|
|
col = T["uint64"]
|
|
case TypeFloatField:
|
|
col = T["float64"]
|
|
case TypeDecimalField:
|
|
s := T["float64-decimal"]
|
|
if strings.Index(s, "%d") == -1 {
|
|
col = s
|
|
} else {
|
|
col = fmt.Sprintf(s, fi.digits, fi.decimals)
|
|
}
|
|
case RelForeignKey, RelOneToOne:
|
|
fieldType = fi.relModelInfo.fields.pk.fieldType
|
|
fieldSize = fi.relModelInfo.fields.pk.size
|
|
goto checkColumn
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// create alter sql string.
|
|
func getColumnAddQuery(al *alias, fi *fieldInfo) string {
|
|
Q := al.DbBaser.TableQuote()
|
|
typ := getColumnTyp(al, fi)
|
|
|
|
if fi.null == false {
|
|
typ += " " + "NOT NULL"
|
|
}
|
|
|
|
return fmt.Sprintf("ALTER TABLE %s%s%s ADD COLUMN %s%s%s %s %s",
|
|
Q, fi.mi.table, Q,
|
|
Q, fi.column, Q,
|
|
typ, getColumnDefault(fi),
|
|
)
|
|
}
|
|
|
|
// create database creation string.
|
|
func getDbCreateSQL(al *alias) (sqls []string, tableIndexes map[string][]dbIndex) {
|
|
if len(modelCache.cache) == 0 {
|
|
fmt.Println("no Model found, need register your model")
|
|
os.Exit(2)
|
|
}
|
|
|
|
Q := al.DbBaser.TableQuote()
|
|
T := al.DbBaser.DbTypes()
|
|
sep := fmt.Sprintf("%s, %s", Q, Q)
|
|
|
|
tableIndexes = make(map[string][]dbIndex)
|
|
|
|
for _, mi := range modelCache.allOrdered() {
|
|
sql := fmt.Sprintf("-- %s\n", strings.Repeat("-", 50))
|
|
sql += fmt.Sprintf("-- Table Structure for `%s`\n", mi.fullName)
|
|
sql += fmt.Sprintf("-- %s\n", strings.Repeat("-", 50))
|
|
|
|
sql += fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s%s%s (\n", Q, mi.table, Q)
|
|
|
|
columns := make([]string, 0, len(mi.fields.fieldsDB))
|
|
|
|
sqlIndexes := [][]string{}
|
|
|
|
for _, fi := range mi.fields.fieldsDB {
|
|
|
|
column := fmt.Sprintf(" %s%s%s ", Q, fi.column, Q)
|
|
col := getColumnTyp(al, fi)
|
|
|
|
if fi.auto {
|
|
switch al.Driver {
|
|
case DRSqlite, DRPostgres:
|
|
column += T["auto"]
|
|
default:
|
|
column += col + " " + T["auto"]
|
|
}
|
|
} else if fi.pk {
|
|
column += col + " " + T["pk"]
|
|
} else {
|
|
column += col
|
|
|
|
if fi.null == false {
|
|
column += " " + "NOT NULL"
|
|
}
|
|
|
|
//if fi.initial.String() != "" {
|
|
// column += " DEFAULT " + fi.initial.String()
|
|
//}
|
|
|
|
// Append attribute DEFAULT
|
|
column += getColumnDefault(fi)
|
|
|
|
if fi.unique {
|
|
column += " " + "UNIQUE"
|
|
}
|
|
|
|
if fi.index {
|
|
sqlIndexes = append(sqlIndexes, []string{fi.column})
|
|
}
|
|
}
|
|
|
|
if strings.Index(column, "%COL%") != -1 {
|
|
column = strings.Replace(column, "%COL%", fi.column, -1)
|
|
}
|
|
|
|
columns = append(columns, column)
|
|
}
|
|
|
|
if mi.model != nil {
|
|
allnames := getTableUnique(mi.addrField)
|
|
if !mi.manual && len(mi.uniques) > 0 {
|
|
allnames = append(allnames, mi.uniques)
|
|
}
|
|
for _, names := range allnames {
|
|
cols := make([]string, 0, len(names))
|
|
for _, name := range names {
|
|
if fi, ok := mi.fields.GetByAny(name); ok && fi.dbcol {
|
|
cols = append(cols, fi.column)
|
|
} else {
|
|
panic(fmt.Errorf("cannot found column `%s` when parse UNIQUE in `%s.TableUnique`", name, mi.fullName))
|
|
}
|
|
}
|
|
column := fmt.Sprintf(" UNIQUE (%s%s%s)", Q, strings.Join(cols, sep), Q)
|
|
columns = append(columns, column)
|
|
}
|
|
}
|
|
|
|
sql += strings.Join(columns, ",\n")
|
|
sql += "\n)"
|
|
|
|
if al.Driver == DRMySQL {
|
|
var engine string
|
|
if mi.model != nil {
|
|
engine = getTableEngine(mi.addrField)
|
|
}
|
|
if engine == "" {
|
|
engine = al.Engine
|
|
}
|
|
sql += " ENGINE=" + engine
|
|
}
|
|
|
|
sql += ";"
|
|
sqls = append(sqls, sql)
|
|
|
|
if mi.model != nil {
|
|
for _, names := range getTableIndex(mi.addrField) {
|
|
cols := make([]string, 0, len(names))
|
|
for _, name := range names {
|
|
if fi, ok := mi.fields.GetByAny(name); ok && fi.dbcol {
|
|
cols = append(cols, fi.column)
|
|
} else {
|
|
panic(fmt.Errorf("cannot found column `%s` when parse INDEX in `%s.TableIndex`", name, mi.fullName))
|
|
}
|
|
}
|
|
sqlIndexes = append(sqlIndexes, cols)
|
|
}
|
|
}
|
|
|
|
for _, names := range sqlIndexes {
|
|
name := mi.table + "_" + strings.Join(names, "_")
|
|
cols := strings.Join(names, sep)
|
|
sql := fmt.Sprintf("CREATE INDEX %s%s%s ON %s%s%s (%s%s%s);", Q, name, Q, Q, mi.table, Q, Q, cols, Q)
|
|
|
|
index := dbIndex{}
|
|
index.Table = mi.table
|
|
index.Name = name
|
|
index.SQL = sql
|
|
|
|
tableIndexes[mi.table] = append(tableIndexes[mi.table], index)
|
|
}
|
|
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// Get string value for the attribute "DEFAULT" for the CREATE, ALTER commands
|
|
func getColumnDefault(fi *fieldInfo) string {
|
|
var (
|
|
v, t, d string
|
|
)
|
|
|
|
// Skip default attribute if field is in relations
|
|
if fi.rel || fi.reverse {
|
|
return v
|
|
}
|
|
|
|
t = " DEFAULT '%s' "
|
|
|
|
// These defaults will be useful if there no config value orm:"default" and NOT NULL is on
|
|
switch fi.fieldType {
|
|
case TypeDateField, TypeDateTimeField, TypeTextField:
|
|
return v
|
|
|
|
case TypeBitField, TypeSmallIntegerField, TypeIntegerField,
|
|
TypeBigIntegerField, TypePositiveBitField, TypePositiveSmallIntegerField,
|
|
TypePositiveIntegerField, TypePositiveBigIntegerField, TypeFloatField,
|
|
TypeDecimalField:
|
|
t = " DEFAULT %s "
|
|
d = "0"
|
|
case TypeBooleanField:
|
|
t = " DEFAULT %s "
|
|
d = "FALSE"
|
|
}
|
|
|
|
if fi.colDefault {
|
|
if !fi.initial.Exist() {
|
|
v = fmt.Sprintf(t, "")
|
|
} else {
|
|
v = fmt.Sprintf(t, fi.initial.String())
|
|
}
|
|
} else {
|
|
if !fi.null {
|
|
v = fmt.Sprintf(t, d)
|
|
}
|
|
}
|
|
|
|
return v
|
|
}
|