mirror of
https://github.com/astaxie/beego.git
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Merge pull request #4201 from jianzhiyao/frt/proposal_4105
WIP：supports for proposal 4105
This commit is contained in:
Ming Deng
GitHub
commit
23792401b5
@ -99,13 +99,17 @@ func (d *commandSyncDb) Parse(args []string) {
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// Run orm line command.
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func (d *commandSyncDb) Run() error {
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var drops []string
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var err error
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if d.force {
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drops = getDbDropSQL(d.al)
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drops, err = modelCache.getDbDropSQL(d.al)
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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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db := d.al.DB
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if d.force {
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if d.force && len(drops) > 0 {
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for i, mi := range modelCache.allOrdered() {
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query := drops[i]
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if !d.noInfo {
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@ -124,7 +128,10 @@ func (d *commandSyncDb) Run() error {
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}
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}
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sqls, indexes := getDbCreateSQL(d.al)
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createQueries, indexes, err := modelCache.getDbCreateSQL(d.al)
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if err != nil {
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return err
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}
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tables, err := d.al.DbBaser.GetTables(db)
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if err != nil {
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@ -201,7 +208,7 @@ func (d *commandSyncDb) Run() error {
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fmt.Printf("create table `%s` \n", mi.table)
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}
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queries := []string{sqls[i]}
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queries := []string{createQueries[i]}
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for _, idx := range indexes[mi.table] {
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queries = append(queries, idx.SQL)
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}
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@ -245,10 +252,13 @@ func (d *commandSQLAll) Parse(args []string) {
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// Run orm line command.
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func (d *commandSQLAll) Run() error {
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sqls, indexes := getDbCreateSQL(d.al)
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createQueries, indexes, err := modelCache.getDbCreateSQL(d.al)
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if err != nil {
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return err
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}
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var all []string
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for i, mi := range modelCache.allOrdered() {
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queries := []string{sqls[i]}
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queries := []string{createQueries[i]}
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for _, idx := range indexes[mi.table] {
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queries = append(queries, idx.SQL)
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}
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@ -16,7 +16,6 @@ package orm
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import (
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"fmt"
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"os"
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"strings"
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)
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@ -26,21 +25,6 @@ type dbIndex struct {
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SQL string
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}
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// create database drop sql.
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func getDbDropSQL(al *alias) (sqls []string) {
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if len(modelCache.cache) == 0 {
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fmt.Println("no Model found, need register your model")
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os.Exit(2)
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}
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Q := al.DbBaser.TableQuote()
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for _, mi := range modelCache.allOrdered() {
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sqls = append(sqls, fmt.Sprintf(`DROP TABLE IF EXISTS %s%s%s`, Q, mi.table, Q))
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}
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return sqls
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}
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// get database column type string.
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func getColumnTyp(al *alias, fi *fieldInfo) (col string) {
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T := al.DbBaser.DbTypes()
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@ -140,146 +124,6 @@ func getColumnAddQuery(al *alias, fi *fieldInfo) string {
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)
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}
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// create database creation string.
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func getDbCreateSQL(al *alias) (sqls []string, tableIndexes map[string][]dbIndex) {
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if len(modelCache.cache) == 0 {
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fmt.Println("no Model found, need register your model")
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os.Exit(2)
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}
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Q := al.DbBaser.TableQuote()
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T := al.DbBaser.DbTypes()
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sep := fmt.Sprintf("%s, %s", Q, Q)
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tableIndexes = make(map[string][]dbIndex)
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for _, mi := range modelCache.allOrdered() {
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sql := fmt.Sprintf("-- %s\n", strings.Repeat("-", 50))
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sql += fmt.Sprintf("-- Table Structure for `%s`\n", mi.fullName)
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sql += fmt.Sprintf("-- %s\n", strings.Repeat("-", 50))
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sql += fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s%s%s (\n", Q, mi.table, Q)
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columns := make([]string, 0, len(mi.fields.fieldsDB))
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sqlIndexes := [][]string{}
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for _, fi := range mi.fields.fieldsDB {
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column := fmt.Sprintf(" %s%s%s ", Q, fi.column, Q)
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col := getColumnTyp(al, fi)
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if fi.auto {
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switch al.Driver {
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case DRSqlite, DRPostgres:
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column += T["auto"]
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default:
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column += col + " " + T["auto"]
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}
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} else if fi.pk {
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column += col + " " + T["pk"]
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} else {
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column += col
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if !fi.null {
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column += " " + "NOT NULL"
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}
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//if fi.initial.String() != "" {
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// column += " DEFAULT " + fi.initial.String()
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//}
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// Append attribute DEFAULT
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column += getColumnDefault(fi)
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if fi.unique {
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column += " " + "UNIQUE"
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}
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if fi.index {
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sqlIndexes = append(sqlIndexes, []string{fi.column})
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}
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}
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if strings.Contains(column, "%COL%") {
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column = strings.Replace(column, "%COL%", fi.column, -1)
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}
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if fi.description != "" && al.Driver != DRSqlite {
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column += " " + fmt.Sprintf("COMMENT '%s'", fi.description)
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}
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columns = append(columns, column)
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}
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if mi.model != nil {
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allnames := getTableUnique(mi.addrField)
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if !mi.manual && len(mi.uniques) > 0 {
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allnames = append(allnames, mi.uniques)
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}
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for _, names := range allnames {
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cols := make([]string, 0, len(names))
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for _, name := range names {
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if fi, ok := mi.fields.GetByAny(name); ok && fi.dbcol {
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cols = append(cols, fi.column)
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} else {
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panic(fmt.Errorf("cannot found column `%s` when parse UNIQUE in `%s.TableUnique`", name, mi.fullName))
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}
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}
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column := fmt.Sprintf(" UNIQUE (%s%s%s)", Q, strings.Join(cols, sep), Q)
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columns = append(columns, column)
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}
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}
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sql += strings.Join(columns, ",\n")
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sql += "\n)"
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if al.Driver == DRMySQL {
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var engine string
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if mi.model != nil {
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engine = getTableEngine(mi.addrField)
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}
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if engine == "" {
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engine = al.Engine
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}
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sql += " ENGINE=" + engine
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}
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sql += ";"
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sqls = append(sqls, sql)
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if mi.model != nil {
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for _, names := range getTableIndex(mi.addrField) {
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cols := make([]string, 0, len(names))
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for _, name := range names {
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if fi, ok := mi.fields.GetByAny(name); ok && fi.dbcol {
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cols = append(cols, fi.column)
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} else {
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panic(fmt.Errorf("cannot found column `%s` when parse INDEX in `%s.TableIndex`", name, mi.fullName))
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}
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}
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sqlIndexes = append(sqlIndexes, cols)
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}
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}
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for _, names := range sqlIndexes {
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name := mi.table + "_" + strings.Join(names, "_")
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cols := strings.Join(names, sep)
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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)
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index := dbIndex{}
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index.Table = mi.table
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index.Name = name
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index.SQL = sql
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tableIndexes[mi.table] = append(tableIndexes[mi.table], index)
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}
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}
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return
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}
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// Get string value for the attribute "DEFAULT" for the CREATE, ALTER commands
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func getColumnDefault(fi *fieldInfo) string {
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var (
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@ -15,7 +15,11 @@
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package orm
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import (
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"errors"
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"fmt"
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"reflect"
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"runtime/debug"
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"strings"
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"sync"
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)
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@ -95,12 +99,464 @@ func (mc *_modelCache) set(table string, mi *modelInfo) *modelInfo {
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// clean all model info.
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func (mc *_modelCache) clean() {
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mc.Lock()
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defer mc.Unlock()
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mc.orders = make([]string, 0)
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mc.cache = make(map[string]*modelInfo)
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mc.cacheByFullName = make(map[string]*modelInfo)
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mc.done = false
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}
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//bootstrap bootstrap for models
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func (mc *_modelCache) bootstrap() {
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mc.Lock()
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defer mc.Unlock()
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if mc.done {
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return
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}
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var (
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err error
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models map[string]*modelInfo
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)
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if dataBaseCache.getDefault() == nil {
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err = fmt.Errorf("must have one register DataBase alias named `default`")
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goto end
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}
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// set rel and reverse model
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// RelManyToMany set the relTable
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models = mc.all()
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for _, mi := range models {
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for _, fi := range mi.fields.columns {
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if fi.rel || fi.reverse {
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elm := fi.addrValue.Type().Elem()
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if fi.fieldType == RelReverseMany || fi.fieldType == RelManyToMany {
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elm = elm.Elem()
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}
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// check the rel or reverse model already register
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name := getFullName(elm)
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mii, ok := mc.getByFullName(name)
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if !ok || mii.pkg != elm.PkgPath() {
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err = fmt.Errorf("can not find rel in field `%s`, `%s` may be miss register", fi.fullName, elm.String())
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goto end
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}
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fi.relModelInfo = mii
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switch fi.fieldType {
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case RelManyToMany:
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if fi.relThrough != "" {
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if i := strings.LastIndex(fi.relThrough, "."); i != -1 && len(fi.relThrough) > (i+1) {
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pn := fi.relThrough[:i]
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rmi, ok := mc.getByFullName(fi.relThrough)
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if !ok || pn != rmi.pkg {
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err = fmt.Errorf("field `%s` wrong rel_through value `%s` cannot find table", fi.fullName, fi.relThrough)
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goto end
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}
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fi.relThroughModelInfo = rmi
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fi.relTable = rmi.table
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} else {
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err = fmt.Errorf("field `%s` wrong rel_through value `%s`", fi.fullName, fi.relThrough)
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goto end
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}
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} else {
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i := newM2MModelInfo(mi, mii)
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if fi.relTable != "" {
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i.table = fi.relTable
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}
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if v := mc.set(i.table, i); v != nil {
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err = fmt.Errorf("the rel table name `%s` already registered, cannot be use, please change one", fi.relTable)
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goto end
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}
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fi.relTable = i.table
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fi.relThroughModelInfo = i
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}
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fi.relThroughModelInfo.isThrough = true
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}
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}
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}
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}
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// check the rel filed while the relModelInfo also has filed point to current model
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// if not exist, add a new field to the relModelInfo
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models = mc.all()
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for _, mi := range models {
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for _, fi := range mi.fields.fieldsRel {
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switch fi.fieldType {
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case RelForeignKey, RelOneToOne, RelManyToMany:
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inModel := false
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for _, ffi := range fi.relModelInfo.fields.fieldsReverse {
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if ffi.relModelInfo == mi {
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inModel = true
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break
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}
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}
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if !inModel {
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rmi := fi.relModelInfo
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ffi := new(fieldInfo)
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ffi.name = mi.name
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ffi.column = ffi.name
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ffi.fullName = rmi.fullName + "." + ffi.name
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ffi.reverse = true
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ffi.relModelInfo = mi
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ffi.mi = rmi
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if fi.fieldType == RelOneToOne {
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ffi.fieldType = RelReverseOne
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} else {
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ffi.fieldType = RelReverseMany
|
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}
|
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if !rmi.fields.Add(ffi) {
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added := false
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for cnt := 0; cnt < 5; cnt++ {
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ffi.name = fmt.Sprintf("%s%d", mi.name, cnt)
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ffi.column = ffi.name
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ffi.fullName = rmi.fullName + "." + ffi.name
|
||||
if added = rmi.fields.Add(ffi); added {
|
||||
break
|
||||
}
|
||||
}
|
||||
if !added {
|
||||
panic(fmt.Errorf("cannot generate auto reverse field info `%s` to `%s`", fi.fullName, ffi.fullName))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
models = mc.all()
|
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for _, mi := range models {
|
||||
for _, fi := range mi.fields.fieldsRel {
|
||||
switch fi.fieldType {
|
||||
case RelManyToMany:
|
||||
for _, ffi := range fi.relThroughModelInfo.fields.fieldsRel {
|
||||
switch ffi.fieldType {
|
||||
case RelOneToOne, RelForeignKey:
|
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if ffi.relModelInfo == fi.relModelInfo {
|
||||
fi.reverseFieldInfoTwo = ffi
|
||||
}
|
||||
if ffi.relModelInfo == mi {
|
||||
fi.reverseField = ffi.name
|
||||
fi.reverseFieldInfo = ffi
|
||||
}
|
||||
}
|
||||
}
|
||||
if fi.reverseFieldInfoTwo == nil {
|
||||
err = fmt.Errorf("can not find m2m field for m2m model `%s`, ensure your m2m model defined correct",
|
||||
fi.relThroughModelInfo.fullName)
|
||||
goto end
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
models = mc.all()
|
||||
for _, mi := range models {
|
||||
for _, fi := range mi.fields.fieldsReverse {
|
||||
switch fi.fieldType {
|
||||
case RelReverseOne:
|
||||
found := false
|
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mForA:
|
||||
for _, ffi := range fi.relModelInfo.fields.fieldsByType[RelOneToOne] {
|
||||
if ffi.relModelInfo == mi {
|
||||
found = true
|
||||
fi.reverseField = ffi.name
|
||||
fi.reverseFieldInfo = ffi
|
||||
|
||||
ffi.reverseField = fi.name
|
||||
ffi.reverseFieldInfo = fi
|
||||
break mForA
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
err = fmt.Errorf("reverse field `%s` not found in model `%s`", fi.fullName, fi.relModelInfo.fullName)
|
||||
goto end
|
||||
}
|
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case RelReverseMany:
|
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found := false
|
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mForB:
|
||||
for _, ffi := range fi.relModelInfo.fields.fieldsByType[RelForeignKey] {
|
||||
if ffi.relModelInfo == mi {
|
||||
found = true
|
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fi.reverseField = ffi.name
|
||||
fi.reverseFieldInfo = ffi
|
||||
|
||||
ffi.reverseField = fi.name
|
||||
ffi.reverseFieldInfo = fi
|
||||
|
||||
break mForB
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
mForC:
|
||||
for _, ffi := range fi.relModelInfo.fields.fieldsByType[RelManyToMany] {
|
||||
conditions := fi.relThrough != "" && fi.relThrough == ffi.relThrough ||
|
||||
fi.relTable != "" && fi.relTable == ffi.relTable ||
|
||||
fi.relThrough == "" && fi.relTable == ""
|
||||
if ffi.relModelInfo == mi && conditions {
|
||||
found = true
|
||||
|
||||
fi.reverseField = ffi.reverseFieldInfoTwo.name
|
||||
fi.reverseFieldInfo = ffi.reverseFieldInfoTwo
|
||||
fi.relThroughModelInfo = ffi.relThroughModelInfo
|
||||
fi.reverseFieldInfoTwo = ffi.reverseFieldInfo
|
||||
fi.reverseFieldInfoM2M = ffi
|
||||
ffi.reverseFieldInfoM2M = fi
|
||||
|
||||
break mForC
|
||||
}
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
err = fmt.Errorf("reverse field for `%s` not found in model `%s`", fi.fullName, fi.relModelInfo.fullName)
|
||||
goto end
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
end:
|
||||
if err != nil {
|
||||
fmt.Println(err)
|
||||
debug.PrintStack()
|
||||
}
|
||||
modelCache.done = true
|
||||
return
|
||||
}
|
||||
|
||||
// register register models to model cache
|
||||
func (mc *_modelCache) register(prefixOrSuffixStr string, prefixOrSuffix bool, models ...interface{}) (err error) {
|
||||
if mc.done {
|
||||
err = fmt.Errorf("register must be run before BootStrap")
|
||||
return
|
||||
}
|
||||
|
||||
for _, model := range models {
|
||||
val := reflect.ValueOf(model)
|
||||
typ := reflect.Indirect(val).Type()
|
||||
|
||||
if val.Kind() != reflect.Ptr {
|
||||
err = fmt.Errorf("<orm.RegisterModel> cannot use non-ptr model struct `%s`", getFullName(typ))
|
||||
return
|
||||
}
|
||||
// For this case:
|
||||
// u := &User{}
|
||||
// registerModel(&u)
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
err = fmt.Errorf("<orm.RegisterModel> only allow ptr model struct, it looks you use two reference to the struct `%s`", typ)
|
||||
return
|
||||
}
|
||||
|
||||
table := getTableName(val)
|
||||
|
||||
if prefixOrSuffixStr != "" {
|
||||
if prefixOrSuffix {
|
||||
table = prefixOrSuffixStr + table
|
||||
} else {
|
||||
table = table + prefixOrSuffixStr
|
||||
}
|
||||
}
|
||||
|
||||
// models's fullname is pkgpath + struct name
|
||||
name := getFullName(typ)
|
||||
if _, ok := mc.getByFullName(name); ok {
|
||||
err = fmt.Errorf("<orm.RegisterModel> model `%s` repeat register, must be unique\n", name)
|
||||
return
|
||||
}
|
||||
|
||||
if _, ok := mc.get(table); ok {
|
||||
err = fmt.Errorf("<orm.RegisterModel> table name `%s` repeat register, must be unique\n", table)
|
||||
return
|
||||
}
|
||||
|
||||
mi := newModelInfo(val)
|
||||
if mi.fields.pk == nil {
|
||||
outFor:
|
||||
for _, fi := range mi.fields.fieldsDB {
|
||||
if strings.ToLower(fi.name) == "id" {
|
||||
switch fi.addrValue.Elem().Kind() {
|
||||
case reflect.Int, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint32, reflect.Uint64:
|
||||
fi.auto = true
|
||||
fi.pk = true
|
||||
mi.fields.pk = fi
|
||||
break outFor
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if mi.fields.pk == nil {
|
||||
err = fmt.Errorf("<orm.RegisterModel> `%s` needs a primary key field, default is to use 'id' if not set\n", name)
|
||||
return
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
mi.table = table
|
||||
mi.pkg = typ.PkgPath()
|
||||
mi.model = model
|
||||
mi.manual = true
|
||||
|
||||
mc.set(table, mi)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
//getDbDropSQL get database scheme drop sql queries
|
||||
func (mc *_modelCache) getDbDropSQL(al *alias) (queries []string, err error) {
|
||||
if len(modelCache.cache) == 0 {
|
||||
err = errors.New("no Model found, need register your model")
|
||||
return
|
||||
}
|
||||
|
||||
Q := al.DbBaser.TableQuote()
|
||||
|
||||
for _, mi := range modelCache.allOrdered() {
|
||||
queries = append(queries, fmt.Sprintf(`DROP TABLE IF EXISTS %s%s%s`, Q, mi.table, Q))
|
||||
}
|
||||
return queries,nil
|
||||
}
|
||||
|
||||
//getDbCreateSQL get database scheme creation sql queries
|
||||
func (mc *_modelCache) getDbCreateSQL(al *alias) (queries []string, tableIndexes map[string][]dbIndex, err error) {
|
||||
if len(modelCache.cache) == 0 {
|
||||
err = errors.New("no Model found, need register your model")
|
||||
return
|
||||
}
|
||||
|
||||
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 {
|
||||
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.Contains(column, "%COL%") {
|
||||
column = strings.Replace(column, "%COL%", fi.column, -1)
|
||||
}
|
||||
|
||||
if fi.description != "" && al.Driver != DRSqlite {
|
||||
column += " " + fmt.Sprintf("COMMENT '%s'", fi.description)
|
||||
}
|
||||
|
||||
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 += ";"
|
||||
queries = append(queries, 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
|
||||
}
|
||||
|
||||
// ResetModelCache Clean model cache. Then you can re-RegisterModel.
|
||||
// Common use this api for test case.
|
||||
func ResetModelCache() {
|
||||
|
||||
@ -16,294 +16,8 @@ package orm
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"reflect"
|
||||
"runtime/debug"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// register models.
|
||||
// PrefixOrSuffix means table name prefix or suffix.
|
||||
// isPrefix whether the prefix is prefix or suffix
|
||||
func registerModel(PrefixOrSuffix string, model interface{}, isPrefix bool) {
|
||||
val := reflect.ValueOf(model)
|
||||
typ := reflect.Indirect(val).Type()
|
||||
|
||||
if val.Kind() != reflect.Ptr {
|
||||
panic(fmt.Errorf("<orm.RegisterModel> cannot use non-ptr model struct `%s`", getFullName(typ)))
|
||||
}
|
||||
// For this case:
|
||||
// u := &User{}
|
||||
// registerModel(&u)
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
panic(fmt.Errorf("<orm.RegisterModel> only allow ptr model struct, it looks you use two reference to the struct `%s`", typ))
|
||||
}
|
||||
|
||||
table := getTableName(val)
|
||||
|
||||
if PrefixOrSuffix != "" {
|
||||
if isPrefix {
|
||||
table = PrefixOrSuffix + table
|
||||
} else {
|
||||
table = table + PrefixOrSuffix
|
||||
}
|
||||
}
|
||||
// models's fullname is pkgpath + struct name
|
||||
name := getFullName(typ)
|
||||
if _, ok := modelCache.getByFullName(name); ok {
|
||||
fmt.Printf("<orm.RegisterModel> model `%s` repeat register, must be unique\n", name)
|
||||
os.Exit(2)
|
||||
}
|
||||
|
||||
if _, ok := modelCache.get(table); ok {
|
||||
fmt.Printf("<orm.RegisterModel> table name `%s` repeat register, must be unique\n", table)
|
||||
os.Exit(2)
|
||||
}
|
||||
|
||||
mi := newModelInfo(val)
|
||||
if mi.fields.pk == nil {
|
||||
outFor:
|
||||
for _, fi := range mi.fields.fieldsDB {
|
||||
if strings.ToLower(fi.name) == "id" {
|
||||
switch fi.addrValue.Elem().Kind() {
|
||||
case reflect.Int, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint32, reflect.Uint64:
|
||||
fi.auto = true
|
||||
fi.pk = true
|
||||
mi.fields.pk = fi
|
||||
break outFor
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if mi.fields.pk == nil {
|
||||
fmt.Printf("<orm.RegisterModel> `%s` needs a primary key field, default is to use 'id' if not set\n", name)
|
||||
os.Exit(2)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
mi.table = table
|
||||
mi.pkg = typ.PkgPath()
|
||||
mi.model = model
|
||||
mi.manual = true
|
||||
|
||||
modelCache.set(table, mi)
|
||||
}
|
||||
|
||||
// bootstrap models
|
||||
func bootStrap() {
|
||||
if modelCache.done {
|
||||
return
|
||||
}
|
||||
var (
|
||||
err error
|
||||
models map[string]*modelInfo
|
||||
)
|
||||
if dataBaseCache.getDefault() == nil {
|
||||
err = fmt.Errorf("must have one register DataBase alias named `default`")
|
||||
goto end
|
||||
}
|
||||
|
||||
// set rel and reverse model
|
||||
// RelManyToMany set the relTable
|
||||
models = modelCache.all()
|
||||
for _, mi := range models {
|
||||
for _, fi := range mi.fields.columns {
|
||||
if fi.rel || fi.reverse {
|
||||
elm := fi.addrValue.Type().Elem()
|
||||
if fi.fieldType == RelReverseMany || fi.fieldType == RelManyToMany {
|
||||
elm = elm.Elem()
|
||||
}
|
||||
// check the rel or reverse model already register
|
||||
name := getFullName(elm)
|
||||
mii, ok := modelCache.getByFullName(name)
|
||||
if !ok || mii.pkg != elm.PkgPath() {
|
||||
err = fmt.Errorf("can not find rel in field `%s`, `%s` may be miss register", fi.fullName, elm.String())
|
||||
goto end
|
||||
}
|
||||
fi.relModelInfo = mii
|
||||
|
||||
switch fi.fieldType {
|
||||
case RelManyToMany:
|
||||
if fi.relThrough != "" {
|
||||
if i := strings.LastIndex(fi.relThrough, "."); i != -1 && len(fi.relThrough) > (i+1) {
|
||||
pn := fi.relThrough[:i]
|
||||
rmi, ok := modelCache.getByFullName(fi.relThrough)
|
||||
if !ok || pn != rmi.pkg {
|
||||
err = fmt.Errorf("field `%s` wrong rel_through value `%s` cannot find table", fi.fullName, fi.relThrough)
|
||||
goto end
|
||||
}
|
||||
fi.relThroughModelInfo = rmi
|
||||
fi.relTable = rmi.table
|
||||
} else {
|
||||
err = fmt.Errorf("field `%s` wrong rel_through value `%s`", fi.fullName, fi.relThrough)
|
||||
goto end
|
||||
}
|
||||
} else {
|
||||
i := newM2MModelInfo(mi, mii)
|
||||
if fi.relTable != "" {
|
||||
i.table = fi.relTable
|
||||
}
|
||||
if v := modelCache.set(i.table, i); v != nil {
|
||||
err = fmt.Errorf("the rel table name `%s` already registered, cannot be use, please change one", fi.relTable)
|
||||
goto end
|
||||
}
|
||||
fi.relTable = i.table
|
||||
fi.relThroughModelInfo = i
|
||||
}
|
||||
|
||||
fi.relThroughModelInfo.isThrough = true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// check the rel filed while the relModelInfo also has filed point to current model
|
||||
// if not exist, add a new field to the relModelInfo
|
||||
models = modelCache.all()
|
||||
for _, mi := range models {
|
||||
for _, fi := range mi.fields.fieldsRel {
|
||||
switch fi.fieldType {
|
||||
case RelForeignKey, RelOneToOne, RelManyToMany:
|
||||
inModel := false
|
||||
for _, ffi := range fi.relModelInfo.fields.fieldsReverse {
|
||||
if ffi.relModelInfo == mi {
|
||||
inModel = true
|
||||
break
|
||||
}
|
||||
}
|
||||
if !inModel {
|
||||
rmi := fi.relModelInfo
|
||||
ffi := new(fieldInfo)
|
||||
ffi.name = mi.name
|
||||
ffi.column = ffi.name
|
||||
ffi.fullName = rmi.fullName + "." + ffi.name
|
||||
ffi.reverse = true
|
||||
ffi.relModelInfo = mi
|
||||
ffi.mi = rmi
|
||||
if fi.fieldType == RelOneToOne {
|
||||
ffi.fieldType = RelReverseOne
|
||||
} else {
|
||||
ffi.fieldType = RelReverseMany
|
||||
}
|
||||
if !rmi.fields.Add(ffi) {
|
||||
added := false
|
||||
for cnt := 0; cnt < 5; cnt++ {
|
||||
ffi.name = fmt.Sprintf("%s%d", mi.name, cnt)
|
||||
ffi.column = ffi.name
|
||||
ffi.fullName = rmi.fullName + "." + ffi.name
|
||||
if added = rmi.fields.Add(ffi); added {
|
||||
break
|
||||
}
|
||||
}
|
||||
if !added {
|
||||
panic(fmt.Errorf("cannot generate auto reverse field info `%s` to `%s`", fi.fullName, ffi.fullName))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
models = modelCache.all()
|
||||
for _, mi := range models {
|
||||
for _, fi := range mi.fields.fieldsRel {
|
||||
switch fi.fieldType {
|
||||
case RelManyToMany:
|
||||
for _, ffi := range fi.relThroughModelInfo.fields.fieldsRel {
|
||||
switch ffi.fieldType {
|
||||
case RelOneToOne, RelForeignKey:
|
||||
if ffi.relModelInfo == fi.relModelInfo {
|
||||
fi.reverseFieldInfoTwo = ffi
|
||||
}
|
||||
if ffi.relModelInfo == mi {
|
||||
fi.reverseField = ffi.name
|
||||
fi.reverseFieldInfo = ffi
|
||||
}
|
||||
}
|
||||
}
|
||||
if fi.reverseFieldInfoTwo == nil {
|
||||
err = fmt.Errorf("can not find m2m field for m2m model `%s`, ensure your m2m model defined correct",
|
||||
fi.relThroughModelInfo.fullName)
|
||||
goto end
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
models = modelCache.all()
|
||||
for _, mi := range models {
|
||||
for _, fi := range mi.fields.fieldsReverse {
|
||||
switch fi.fieldType {
|
||||
case RelReverseOne:
|
||||
found := false
|
||||
mForA:
|
||||
for _, ffi := range fi.relModelInfo.fields.fieldsByType[RelOneToOne] {
|
||||
if ffi.relModelInfo == mi {
|
||||
found = true
|
||||
fi.reverseField = ffi.name
|
||||
fi.reverseFieldInfo = ffi
|
||||
|
||||
ffi.reverseField = fi.name
|
||||
ffi.reverseFieldInfo = fi
|
||||
break mForA
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
err = fmt.Errorf("reverse field `%s` not found in model `%s`", fi.fullName, fi.relModelInfo.fullName)
|
||||
goto end
|
||||
}
|
||||
case RelReverseMany:
|
||||
found := false
|
||||
mForB:
|
||||
for _, ffi := range fi.relModelInfo.fields.fieldsByType[RelForeignKey] {
|
||||
if ffi.relModelInfo == mi {
|
||||
found = true
|
||||
fi.reverseField = ffi.name
|
||||
fi.reverseFieldInfo = ffi
|
||||
|
||||
ffi.reverseField = fi.name
|
||||
ffi.reverseFieldInfo = fi
|
||||
|
||||
break mForB
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
mForC:
|
||||
for _, ffi := range fi.relModelInfo.fields.fieldsByType[RelManyToMany] {
|
||||
conditions := fi.relThrough != "" && fi.relThrough == ffi.relThrough ||
|
||||
fi.relTable != "" && fi.relTable == ffi.relTable ||
|
||||
fi.relThrough == "" && fi.relTable == ""
|
||||
if ffi.relModelInfo == mi && conditions {
|
||||
found = true
|
||||
|
||||
fi.reverseField = ffi.reverseFieldInfoTwo.name
|
||||
fi.reverseFieldInfo = ffi.reverseFieldInfoTwo
|
||||
fi.relThroughModelInfo = ffi.relThroughModelInfo
|
||||
fi.reverseFieldInfoTwo = ffi.reverseFieldInfo
|
||||
fi.reverseFieldInfoM2M = ffi
|
||||
ffi.reverseFieldInfoM2M = fi
|
||||
|
||||
break mForC
|
||||
}
|
||||
}
|
||||
}
|
||||
if !found {
|
||||
err = fmt.Errorf("reverse field for `%s` not found in model `%s`", fi.fullName, fi.relModelInfo.fullName)
|
||||
goto end
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
end:
|
||||
if err != nil {
|
||||
fmt.Println(err)
|
||||
debug.PrintStack()
|
||||
os.Exit(2)
|
||||
}
|
||||
}
|
||||
|
||||
// RegisterModel register models
|
||||
func RegisterModel(models ...interface{}) {
|
||||
if modelCache.done {
|
||||
@ -314,34 +28,20 @@ func RegisterModel(models ...interface{}) {
|
||||
|
||||
// RegisterModelWithPrefix register models with a prefix
|
||||
func RegisterModelWithPrefix(prefix string, models ...interface{}) {
|
||||
if modelCache.done {
|
||||
panic(fmt.Errorf("RegisterModelWithPrefix must be run before BootStrap"))
|
||||
}
|
||||
|
||||
for _, model := range models {
|
||||
registerModel(prefix, model, true)
|
||||
if err := modelCache.register(prefix, true, models...); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
// RegisterModelWithSuffix register models with a suffix
|
||||
func RegisterModelWithSuffix(suffix string, models ...interface{}) {
|
||||
if modelCache.done {
|
||||
panic(fmt.Errorf("RegisterModelWithSuffix must be run before BootStrap"))
|
||||
}
|
||||
|
||||
for _, model := range models {
|
||||
registerModel(suffix, model, false)
|
||||
if err := modelCache.register(suffix, false, models...); err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
|
||||
// BootStrap bootstrap models.
|
||||
// make all model parsed and can not add more models
|
||||
func BootStrap() {
|
||||
modelCache.Lock()
|
||||
defer modelCache.Unlock()
|
||||
if modelCache.done {
|
||||
return
|
||||
}
|
||||
bootStrap()
|
||||
modelCache.done = true
|
||||
modelCache.bootstrap()
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user