support migrate generate sql

g.go

@@ -22,13 +22,14 @@ var cmdGenerate = &Command{
 	Long: `
 bee generate scaffold [scaffoldname] [-fields=""] [-driver=mysql] [-conn="root:@tcp(127.0.0.1:3306)/test"]
     The generate scaffold command will do a number of things for you.
-    -fields: a list of database fields.
+    -fields: a list of table fields.
     -driver: [mysql | postgresql | sqlite], the default is mysql
     -conn:   the connection string used by the driver, the default is root:@tcp(127.0.0.1:3306)/test
     example: bee generate scaffold post -fields="title:string,body:text"
 
 bee generate model [modelname] [-fields=""]
     generate RESTFul model based on fields
+	-fields: a list of table fields.
 
 bee generate controller [controllerfile]
     generate RESTFul controllers             
@@ -36,8 +37,9 @@ bee generate controller [controllerfile]
 bee generate view [viewpath]
     generate CRUD view in viewpath
 
-bee generate migration [migrationfile]
+bee generate migration [migrationfile] [-fields=""]
     generate migration file for making database schema update
+	-fields: a list of table fields.
 	
 bee generate docs
     generate swagger doc file
@@ -147,15 +149,19 @@ func generateCode(cmd *Command, args []string) {
 		ColorLog("[INFO] Using '%s' as 'level'\n", level)
 		generateAppcode(driver.String(), conn.String(), level.String(), tables.String(), curpath)
 	case "migration":
-		if len(args) == 2 {
+		if len(args) < 2 {
-			mname := args[1]
-			ColorLog("[INFO] Using '%s' as migration name\n", mname)
-			generateMigration(mname, curpath)
-		} else {
 			ColorLog("[ERRO] Wrong number of arguments\n")
-			ColorLog("[HINT] Usage: bee generate migration [migrationname]\n")
+			ColorLog("[HINT] Usage: bee generate migration [migrationname] [-fields=\"\"]\n")
 			os.Exit(2)
 		}
+		cmd.Flag.Parse(args[2:])
+		mname := args[1]
+		ColorLog("[INFO] Using '%s' as migration name\n", mname)
+		upsql := ""
+		if fields != "" {
+			upsql = `m.Sql("CREATE TABLE ` + mname + "(" + generateSQLFromFields(fields.String()) + `)");`
+		}
+		generateMigration(mname, upsql, "", curpath)
 	case "controller":
 		if len(args) == 2 {
 			cname := args[1]

g_migration.go

@@ -31,7 +31,7 @@ const (
 // generateMigration generates migration file template for database schema update.
 // The generated file template consists of an up() method for updating schema and
 // a down() method for reverting the update.
-func generateMigration(mname string, curpath string) {
+func generateMigration(mname, upsql, downsql, curpath string) {
 	migrationFilePath := path.Join(curpath, "database", M_PATH)
 	if _, err := os.Stat(migrationFilePath); os.IsNotExist(err) {
 		// create migrations directory
@@ -47,6 +47,8 @@ func generateMigration(mname string, curpath string) {
 		defer f.Close()
 		content := strings.Replace(MIGRATION_TPL, "{{StructName}}", camelCase(mname)+"_"+today, -1)
 		content = strings.Replace(content, "{{CurrTime}}", today, -1)
+		content = strings.Replace(content, "{{UpSQL}}", upsql, -1)
+		content = strings.Replace(content, "{{DownSQL}}", downsql, -1)
 		f.WriteString(content)
 		// gofmt generated source code
 		formatSourceCode(fpath)
@@ -85,10 +87,12 @@ func init() {
 // Run the migrations
 func (m *{{StructName}}) Up() {
 	// use m.Sql("CREATE TABLE ...") to make schema update
+	{{UpSQL}}
 }
 
 // Reverse the migrations
 func (m *{{StructName}}) Down() {
 	// use m.Sql("DROP TABLE ...") to reverse schema update
+	{{DownSQL}}
 }
 `

g_model.go

@@ -71,30 +71,6 @@ func getStruct(structname, fields string) (string, error) {
 	return structStr, nil
 }
 
-func camelString(s string) string {
-	data := make([]byte, 0, len(s))
-	j := false
-	k := false
-	num := len(s) - 1
-	for i := 0; i <= num; i++ {
-		d := s[i]
-		if k == false && d >= 'A' && d <= 'Z' {
-			k = true
-		}
-		if d >= 'a' && d <= 'z' && (j || k == false) {
-			d = d - 32
-			j = false
-			k = true
-		}
-		if k && d == '_' && num > i && s[i+1] >= 'a' && s[i+1] <= 'z' {
-			j = true
-			continue
-		}
-		data = append(data, d)
-	}
-	return string(data[:len(data)])
-}
-
 // fields support type
 // http://beego.me/docs/mvc/model/models.md#mysql
 func getType(ktype string) (kt, tag string) {

g_scaffold.go

@@ -1,6 +1,9 @@
 package main
 
-import "strings"
+import (
+	"fmt"
+	"strings"
+)
 
 func generateScaffold(sname, fields, crupath, driver, conn string) {
 	// generate model
@@ -22,7 +25,11 @@ func generateScaffold(sname, fields, crupath, driver, conn string) {
 	// generate migration
 	ColorLog("[INFO] Do you want me to create a %v migration and schema for this resource? [yes|no]]  ", sname)
 	if askForConfirmation() {
-		generateMigration(sname, crupath)
+		upsql := ""
+		if fields != "" {
+			upsql = `m.Sql("CREATE TABLE ` + sname + "(" + generateSQLFromFields(fields) + `)");`
+		}
+		generateMigration(sname, upsql, "", crupath)
 	}
 	// run migration
 	ColorLog("[INFO] Do you want to go ahead and migrate the database? [yes|no]]  ")
@@ -31,3 +38,62 @@ func generateScaffold(sname, fields, crupath, driver, conn string) {
 	}
 	ColorLog("[INFO] All done! Don't forget to add  beego.Router(\"/%v\" ,&controllers.%vController{}) to routers/route.go\n", sname, strings.Title(sname))
 }
+
+func generateSQLFromFields(fields string) string {
+	sql := ""
+	tags := ""
+	fds := strings.Split(fields, ",")
+	for i, v := range fds {
+		kv := strings.SplitN(v, ":", 2)
+		if len(kv) != 2 {
+			ColorLog("[ERRO] the filds format is wrong. should key:type,key:type " + v)
+			return ""
+		}
+		typ, tag := getSqlType(kv[1])
+		if typ == "" {
+			ColorLog("[ERRO] the filds format is wrong. should key:type,key:type " + v)
+			return ""
+		}
+		if i == 0 && strings.ToLower(kv[0]) != "id" {
+			sql = sql + "`id` int(11) NOT NULL AUTO_INCREMENT,"
+			tags = tags + "PRIMARY KEY (`id`),"
+		}
+		sql = sql + "`" + snakeString(kv[0]) + "` " + typ + ","
+		if tag != "" {
+			tags = tags + fmt.Sprintf(tag, "`"+snakeString(kv[0])+"`") + ","
+		}
+	}
+	sql = strings.TrimRight(sql+tags, ",")
+	return sql
+}
+
+func getSqlType(ktype string) (tp, tag string) {
+	kv := strings.SplitN(ktype, ":", 2)
+	switch kv[0] {
+	case "string":
+		if len(kv) == 2 {
+			return "varchar(" + kv[1] + ") NOT NULL", ""
+		} else {
+			return "varchar(128) NOT NULL", ""
+		}
+	case "text":
+		return "longtext  NOT NULL", ""
+	case "auto":
+		return "int(11) NOT NULL AUTO_INCREMENT", ""
+	case "pk":
+		return "int(11) NOT NULL", "PRIMARY KEY (%s)"
+	case "datetime":
+		return "datetime NOT NULL", ""
+	case "int", "int8", "int16", "int32", "int64":
+		fallthrough
+	case "uint", "uint8", "uint16", "uint32", "uint64":
+		return "int(11) DEFAULT NULL", ""
+	case "bool":
+		return "tinyint(1) NOT NULL", ""
+	case "float32", "float64":
+		return "float NOT NULL", ""
+	case "float":
+		return "float NOT NULL", ""
+	}
+	return "", ""
+}

util.go

@@ -206,3 +206,45 @@ func containsString(slice []string, element string) bool {
 	}
 	return false
 }
+
+// snake string, XxYy to xx_yy
+func snakeString(s string) string {
+	data := make([]byte, 0, len(s)*2)
+	j := false
+	num := len(s)
+	for i := 0; i < num; i++ {
+		d := s[i]
+		if i > 0 && d >= 'A' && d <= 'Z' && j {
+			data = append(data, '_')
+		}
+		if d != '_' {
+			j = true
+		}
+		data = append(data, d)
+	}
+	return strings.ToLower(string(data[:len(data)]))
+}
+
+func camelString(s string) string {
+	data := make([]byte, 0, len(s))
+	j := false
+	k := false
+	num := len(s) - 1
+	for i := 0; i <= num; i++ {
+		d := s[i]
+		if k == false && d >= 'A' && d <= 'Z' {
+			k = true
+		}
+		if d >= 'a' && d <= 'z' && (j || k == false) {
+			d = d - 32
+			j = false
+			k = true
+		}
+		if k && d == '_' && num > i && s[i+1] >= 'a' && s[i+1] <= 'z' {
+			j = true
+			continue
+		}
+		data = append(data, d)
+	}
+	return string(data[:len(data)])
+}