auto generate query & models

cmd/model.go

@@ -5,6 +5,8 @@ package cmd
 
 import (
 	"atom/container"
+	"errors"
+	"log"
 
 	"github.com/spf13/cobra"
 	"go.uber.org/dig"
@@ -25,22 +27,40 @@ type GenQueryGenerator struct {
 // 	FilterWithNameAndRole(name, role string) ([]gen.T, error)
 // }
 
-// genCmd represents the gen command
-var genCmd = &cobra.Command{
-	Use:   "gen",
-	Short: "gorm query generator",
-	Long:  `gorm query generator. more info, see https://gorm.io/gen`,
+// modelCmd represents the gen command
+var modelCmd = &cobra.Command{
+	Use:   "model",
+	Short: "gorm model&query generator",
+	Long:  `gorm model&query generator. more info, see https://gorm.io/gen`,
 	RunE: func(cmd *cobra.Command, args []string) error {
 		return container.Container.Invoke(func(gq GenQueryGenerator) error {
+			var tables []string
+			err := gq.DB.Raw("show tables").Scan(&tables).Error
+			if err != nil {
+				log.Fatal(err)
+			}
+			if len(tables) == 0 {
+				return errors.New("no tables in database, run migrate first")
+			}
+
 			g := gen.NewGenerator(gen.Config{
-				OutPath: "providers/query",
-				Mode:    gen.WithDefaultQuery | gen.WithQueryInterface, // generate mode
+				OutPath:          "database/query",
+				OutFile:          "query.gen.go",
+				ModelPkgPath:     "database/models",
+				FieldSignable:    true,
+				FieldWithTypeTag: true,
+				Mode:             gen.WithDefaultQuery | gen.WithQueryInterface,
 			})
 
 			g.UseDB(gq.DB) // reuse your gorm db
 
+			models := []interface{}{}
+			for _, table := range tables {
+				models = append(models, g.GenerateModel(table))
+			}
+
 			// Generate basic type-safe DAO API for struct `model.User` following conventions
-			g.ApplyBasic()
+			g.ApplyBasic(models...)
 
 			// Generate Type Safe API with Dynamic SQL defined on Querier interface for `model.User` and `model.Company`
 			// g.ApplyInterface(func(Querier) {}, model.User{}, model.Company{})
@@ -53,5 +73,5 @@ var genCmd = &cobra.Command{
 }
 
 func init() {
-	rootCmd.AddCommand(genCmd)
+	rootCmd.AddCommand(modelCmd)
 }

database/models/migrations.gen.go

@@ -0,0 +1,17 @@
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+
+package models
+
+const TableNameMigration = "migrations"
+
+// Migration mapped from table <migrations>
+type Migration struct {
+	ID string `gorm:"column:id;type:varchar(255);primaryKey" json:"id"`
+}
+
+// TableName Migration's table name
+func (*Migration) TableName() string {
+	return TableNameMigration
+}

database/query/migrations.gen.go

@@ -0,0 +1,392 @@
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+
+package query
+
+import (
+	"context"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+	"gorm.io/gorm/schema"
+
+	"gorm.io/gen"
+	"gorm.io/gen/field"
+
+	"gorm.io/plugin/dbresolver"
+
+	"atom/database/models"
+)
+
+func newMigration(db *gorm.DB, opts ...gen.DOOption) migration {
+	_migration := migration{}
+
+	_migration.migrationDo.UseDB(db, opts...)
+	_migration.migrationDo.UseModel(&models.Migration{})
+
+	tableName := _migration.migrationDo.TableName()
+	_migration.ALL = field.NewAsterisk(tableName)
+	_migration.ID = field.NewString(tableName, "id")
+
+	_migration.fillFieldMap()
+
+	return _migration
+}
+
+type migration struct {
+	migrationDo migrationDo
+
+	ALL field.Asterisk
+	ID  field.String
+
+	fieldMap map[string]field.Expr
+}
+
+func (m migration) Table(newTableName string) *migration {
+	m.migrationDo.UseTable(newTableName)
+	return m.updateTableName(newTableName)
+}
+
+func (m migration) As(alias string) *migration {
+	m.migrationDo.DO = *(m.migrationDo.As(alias).(*gen.DO))
+	return m.updateTableName(alias)
+}
+
+func (m *migration) updateTableName(table string) *migration {
+	m.ALL = field.NewAsterisk(table)
+	m.ID = field.NewString(table, "id")
+
+	m.fillFieldMap()
+
+	return m
+}
+
+func (m *migration) WithContext(ctx context.Context) IMigrationDo {
+	return m.migrationDo.WithContext(ctx)
+}
+
+func (m migration) TableName() string { return m.migrationDo.TableName() }
+
+func (m migration) Alias() string { return m.migrationDo.Alias() }
+
+func (m *migration) GetFieldByName(fieldName string) (field.OrderExpr, bool) {
+	_f, ok := m.fieldMap[fieldName]
+	if !ok || _f == nil {
+		return nil, false
+	}
+	_oe, ok := _f.(field.OrderExpr)
+	return _oe, ok
+}
+
+func (m *migration) fillFieldMap() {
+	m.fieldMap = make(map[string]field.Expr, 1)
+	m.fieldMap["id"] = m.ID
+}
+
+func (m migration) clone(db *gorm.DB) migration {
+	m.migrationDo.ReplaceConnPool(db.Statement.ConnPool)
+	return m
+}
+
+func (m migration) replaceDB(db *gorm.DB) migration {
+	m.migrationDo.ReplaceDB(db)
+	return m
+}
+
+type migrationDo struct{ gen.DO }
+
+type IMigrationDo interface {
+	gen.SubQuery
+	Debug() IMigrationDo
+	WithContext(ctx context.Context) IMigrationDo
+	WithResult(fc func(tx gen.Dao)) gen.ResultInfo
+	ReplaceDB(db *gorm.DB)
+	ReadDB() IMigrationDo
+	WriteDB() IMigrationDo
+	As(alias string) gen.Dao
+	Session(config *gorm.Session) IMigrationDo
+	Columns(cols ...field.Expr) gen.Columns
+	Clauses(conds ...clause.Expression) IMigrationDo
+	Not(conds ...gen.Condition) IMigrationDo
+	Or(conds ...gen.Condition) IMigrationDo
+	Select(conds ...field.Expr) IMigrationDo
+	Where(conds ...gen.Condition) IMigrationDo
+	Order(conds ...field.Expr) IMigrationDo
+	Distinct(cols ...field.Expr) IMigrationDo
+	Omit(cols ...field.Expr) IMigrationDo
+	Join(table schema.Tabler, on ...field.Expr) IMigrationDo
+	LeftJoin(table schema.Tabler, on ...field.Expr) IMigrationDo
+	RightJoin(table schema.Tabler, on ...field.Expr) IMigrationDo
+	Group(cols ...field.Expr) IMigrationDo
+	Having(conds ...gen.Condition) IMigrationDo
+	Limit(limit int) IMigrationDo
+	Offset(offset int) IMigrationDo
+	Count() (count int64, err error)
+	Scopes(funcs ...func(gen.Dao) gen.Dao) IMigrationDo
+	Unscoped() IMigrationDo
+	Create(values ...*models.Migration) error
+	CreateInBatches(values []*models.Migration, batchSize int) error
+	Save(values ...*models.Migration) error
+	First() (*models.Migration, error)
+	Take() (*models.Migration, error)
+	Last() (*models.Migration, error)
+	Find() ([]*models.Migration, error)
+	FindInBatch(batchSize int, fc func(tx gen.Dao, batch int) error) (results []*models.Migration, err error)
+	FindInBatches(result *[]*models.Migration, batchSize int, fc func(tx gen.Dao, batch int) error) error
+	Pluck(column field.Expr, dest interface{}) error
+	Delete(...*models.Migration) (info gen.ResultInfo, err error)
+	Update(column field.Expr, value interface{}) (info gen.ResultInfo, err error)
+	UpdateSimple(columns ...field.AssignExpr) (info gen.ResultInfo, err error)
+	Updates(value interface{}) (info gen.ResultInfo, err error)
+	UpdateColumn(column field.Expr, value interface{}) (info gen.ResultInfo, err error)
+	UpdateColumnSimple(columns ...field.AssignExpr) (info gen.ResultInfo, err error)
+	UpdateColumns(value interface{}) (info gen.ResultInfo, err error)
+	UpdateFrom(q gen.SubQuery) gen.Dao
+	Attrs(attrs ...field.AssignExpr) IMigrationDo
+	Assign(attrs ...field.AssignExpr) IMigrationDo
+	Joins(fields ...field.RelationField) IMigrationDo
+	Preload(fields ...field.RelationField) IMigrationDo
+	FirstOrInit() (*models.Migration, error)
+	FirstOrCreate() (*models.Migration, error)
+	FindByPage(offset int, limit int) (result []*models.Migration, count int64, err error)
+	ScanByPage(result interface{}, offset int, limit int) (count int64, err error)
+	Scan(result interface{}) (err error)
+	Returning(value interface{}, columns ...string) IMigrationDo
+	UnderlyingDB() *gorm.DB
+	schema.Tabler
+}
+
+func (m migrationDo) Debug() IMigrationDo {
+	return m.withDO(m.DO.Debug())
+}
+
+func (m migrationDo) WithContext(ctx context.Context) IMigrationDo {
+	return m.withDO(m.DO.WithContext(ctx))
+}
+
+func (m migrationDo) ReadDB() IMigrationDo {
+	return m.Clauses(dbresolver.Read)
+}
+
+func (m migrationDo) WriteDB() IMigrationDo {
+	return m.Clauses(dbresolver.Write)
+}
+
+func (m migrationDo) Session(config *gorm.Session) IMigrationDo {
+	return m.withDO(m.DO.Session(config))
+}
+
+func (m migrationDo) Clauses(conds ...clause.Expression) IMigrationDo {
+	return m.withDO(m.DO.Clauses(conds...))
+}
+
+func (m migrationDo) Returning(value interface{}, columns ...string) IMigrationDo {
+	return m.withDO(m.DO.Returning(value, columns...))
+}
+
+func (m migrationDo) Not(conds ...gen.Condition) IMigrationDo {
+	return m.withDO(m.DO.Not(conds...))
+}
+
+func (m migrationDo) Or(conds ...gen.Condition) IMigrationDo {
+	return m.withDO(m.DO.Or(conds...))
+}
+
+func (m migrationDo) Select(conds ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.Select(conds...))
+}
+
+func (m migrationDo) Where(conds ...gen.Condition) IMigrationDo {
+	return m.withDO(m.DO.Where(conds...))
+}
+
+func (m migrationDo) Exists(subquery interface{ UnderlyingDB() *gorm.DB }) IMigrationDo {
+	return m.Where(field.CompareSubQuery(field.ExistsOp, nil, subquery.UnderlyingDB()))
+}
+
+func (m migrationDo) Order(conds ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.Order(conds...))
+}
+
+func (m migrationDo) Distinct(cols ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.Distinct(cols...))
+}
+
+func (m migrationDo) Omit(cols ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.Omit(cols...))
+}
+
+func (m migrationDo) Join(table schema.Tabler, on ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.Join(table, on...))
+}
+
+func (m migrationDo) LeftJoin(table schema.Tabler, on ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.LeftJoin(table, on...))
+}
+
+func (m migrationDo) RightJoin(table schema.Tabler, on ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.RightJoin(table, on...))
+}
+
+func (m migrationDo) Group(cols ...field.Expr) IMigrationDo {
+	return m.withDO(m.DO.Group(cols...))
+}
+
+func (m migrationDo) Having(conds ...gen.Condition) IMigrationDo {
+	return m.withDO(m.DO.Having(conds...))
+}
+
+func (m migrationDo) Limit(limit int) IMigrationDo {
+	return m.withDO(m.DO.Limit(limit))
+}
+
+func (m migrationDo) Offset(offset int) IMigrationDo {
+	return m.withDO(m.DO.Offset(offset))
+}
+
+func (m migrationDo) Scopes(funcs ...func(gen.Dao) gen.Dao) IMigrationDo {
+	return m.withDO(m.DO.Scopes(funcs...))
+}
+
+func (m migrationDo) Unscoped() IMigrationDo {
+	return m.withDO(m.DO.Unscoped())
+}
+
+func (m migrationDo) Create(values ...*models.Migration) error {
+	if len(values) == 0 {
+		return nil
+	}
+	return m.DO.Create(values)
+}
+
+func (m migrationDo) CreateInBatches(values []*models.Migration, batchSize int) error {
+	return m.DO.CreateInBatches(values, batchSize)
+}
+
+// Save : !!! underlying implementation is different with GORM
+// The method is equivalent to executing the statement: db.Clauses(clause.OnConflict{UpdateAll: true}).Create(values)
+func (m migrationDo) Save(values ...*models.Migration) error {
+	if len(values) == 0 {
+		return nil
+	}
+	return m.DO.Save(values)
+}
+
+func (m migrationDo) First() (*models.Migration, error) {
+	if result, err := m.DO.First(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.Migration), nil
+	}
+}
+
+func (m migrationDo) Take() (*models.Migration, error) {
+	if result, err := m.DO.Take(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.Migration), nil
+	}
+}
+
+func (m migrationDo) Last() (*models.Migration, error) {
+	if result, err := m.DO.Last(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.Migration), nil
+	}
+}
+
+func (m migrationDo) Find() ([]*models.Migration, error) {
+	result, err := m.DO.Find()
+	return result.([]*models.Migration), err
+}
+
+func (m migrationDo) FindInBatch(batchSize int, fc func(tx gen.Dao, batch int) error) (results []*models.Migration, err error) {
+	buf := make([]*models.Migration, 0, batchSize)
+	err = m.DO.FindInBatches(&buf, batchSize, func(tx gen.Dao, batch int) error {
+		defer func() { results = append(results, buf...) }()
+		return fc(tx, batch)
+	})
+	return results, err
+}
+
+func (m migrationDo) FindInBatches(result *[]*models.Migration, batchSize int, fc func(tx gen.Dao, batch int) error) error {
+	return m.DO.FindInBatches(result, batchSize, fc)
+}
+
+func (m migrationDo) Attrs(attrs ...field.AssignExpr) IMigrationDo {
+	return m.withDO(m.DO.Attrs(attrs...))
+}
+
+func (m migrationDo) Assign(attrs ...field.AssignExpr) IMigrationDo {
+	return m.withDO(m.DO.Assign(attrs...))
+}
+
+func (m migrationDo) Joins(fields ...field.RelationField) IMigrationDo {
+	for _, _f := range fields {
+		m = *m.withDO(m.DO.Joins(_f))
+	}
+	return &m
+}
+
+func (m migrationDo) Preload(fields ...field.RelationField) IMigrationDo {
+	for _, _f := range fields {
+		m = *m.withDO(m.DO.Preload(_f))
+	}
+	return &m
+}
+
+func (m migrationDo) FirstOrInit() (*models.Migration, error) {
+	if result, err := m.DO.FirstOrInit(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.Migration), nil
+	}
+}
+
+func (m migrationDo) FirstOrCreate() (*models.Migration, error) {
+	if result, err := m.DO.FirstOrCreate(); err != nil {
+		return nil, err
+	} else {
+		return result.(*models.Migration), nil
+	}
+}
+
+func (m migrationDo) FindByPage(offset int, limit int) (result []*models.Migration, count int64, err error) {
+	result, err = m.Offset(offset).Limit(limit).Find()
+	if err != nil {
+		return
+	}
+
+	if size := len(result); 0 < limit && 0 < size && size < limit {
+		count = int64(size + offset)
+		return
+	}
+
+	count, err = m.Offset(-1).Limit(-1).Count()
+	return
+}
+
+func (m migrationDo) ScanByPage(result interface{}, offset int, limit int) (count int64, err error) {
+	count, err = m.Count()
+	if err != nil {
+		return
+	}
+
+	err = m.Offset(offset).Limit(limit).Scan(result)
+	return
+}
+
+func (m migrationDo) Scan(result interface{}) (err error) {
+	return m.DO.Scan(result)
+}
+
+func (m migrationDo) Delete(models ...*models.Migration) (result gen.ResultInfo, err error) {
+	return m.DO.Delete(models)
+}
+
+func (m *migrationDo) withDO(do gen.Dao) *migrationDo {
+	m.DO = *do.(*gen.DO)
+	return m
+}

database/query/query.gen.go

@@ -0,0 +1,99 @@
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+// Code generated by gorm.io/gen. DO NOT EDIT.
+
+package query
+
+import (
+	"context"
+	"database/sql"
+
+	"gorm.io/gorm"
+
+	"gorm.io/gen"
+
+	"gorm.io/plugin/dbresolver"
+)
+
+var (
+	Q         = new(Query)
+	Migration *migration
+)
+
+func SetDefault(db *gorm.DB, opts ...gen.DOOption) {
+	*Q = *Use(db, opts...)
+	Migration = &Q.Migration
+}
+
+func Use(db *gorm.DB, opts ...gen.DOOption) *Query {
+	return &Query{
+		db:        db,
+		Migration: newMigration(db, opts...),
+	}
+}
+
+type Query struct {
+	db *gorm.DB
+
+	Migration migration
+}
+
+func (q *Query) Available() bool { return q.db != nil }
+
+func (q *Query) clone(db *gorm.DB) *Query {
+	return &Query{
+		db:        db,
+		Migration: q.Migration.clone(db),
+	}
+}
+
+func (q *Query) ReadDB() *Query {
+	return q.clone(q.db.Clauses(dbresolver.Read))
+}
+
+func (q *Query) WriteDB() *Query {
+	return q.clone(q.db.Clauses(dbresolver.Write))
+}
+
+func (q *Query) ReplaceDB(db *gorm.DB) *Query {
+	return &Query{
+		db:        db,
+		Migration: q.Migration.replaceDB(db),
+	}
+}
+
+type queryCtx struct {
+	Migration IMigrationDo
+}
+
+func (q *Query) WithContext(ctx context.Context) *queryCtx {
+	return &queryCtx{
+		Migration: q.Migration.WithContext(ctx),
+	}
+}
+
+func (q *Query) Transaction(fc func(tx *Query) error, opts ...*sql.TxOptions) error {
+	return q.db.Transaction(func(tx *gorm.DB) error { return fc(q.clone(tx)) }, opts...)
+}
+
+func (q *Query) Begin(opts ...*sql.TxOptions) *QueryTx {
+	return &QueryTx{q.clone(q.db.Begin(opts...))}
+}
+
+type QueryTx struct{ *Query }
+
+func (q *QueryTx) Commit() error {
+	return q.db.Commit().Error
+}
+
+func (q *QueryTx) Rollback() error {
+	return q.db.Rollback().Error
+}
+
+func (q *QueryTx) SavePoint(name string) error {
+	return q.db.SavePoint(name).Error
+}
+
+func (q *QueryTx) RollbackTo(name string) error {
+	return q.db.RollbackTo(name).Error
+}

providers/provider.go

@@ -6,5 +6,4 @@ import (
 	_ "atom/providers/http"
 	_ "atom/providers/logger"
 	_ "atom/providers/micro"
-	_ "atom/providers/query"
 )

providers/query/query.go

@@ -2,6 +2,7 @@ package query
 
 import (
 	"atom/container"
+	"atom/database/query"
 	"log"
 
 	"gorm.io/gorm"
@@ -13,6 +14,6 @@ func init() {
 	}
 }
 
-func NewQuery(db *gorm.DB) *Query {
-	return Use(db)
+func NewQuery(db *gorm.DB) *query.Query {
+	return query.Use(db)
 }