Files
go-gin-api/cmd/gormgen/pkg/template.go
2021-02-27 09:29:34 +08:00

150 lines
3.5 KiB
Go

package pkg
import "text/template"
// Make sure that the template compiles during package initialization
func parseTemplateOrPanic(t string) *template.Template {
tpl, err := template.New("output_template").Parse(t)
if err != nil {
panic(err)
}
return tpl
}
var outputTemplate = parseTemplateOrPanic(`
///////////////////////////////////////////////////////////
// THIS FILE IS AUTO GENERATED by gormgen, DON'T EDIT IT //
// ANY CHANGES DONE HERE WILL BE LOST //
///////////////////////////////////////////////////////////
package {{.PkgName}}
import (
"fmt"
"time"
"github.com/xinliangnote/go-gin-api/internal/api/repository/db_repo"
"github.com/pkg/errors"
"gorm.io/gorm"
)
func NewModel() *{{.StructName}} {
return new({{.StructName}})
}
func NewQueryBuilder() *{{.QueryBuilderName}} {
return new({{.QueryBuilderName}})
}
func (t *{{.StructName}}) Create(db *gorm.DB) (id int32, err error) {
if err = db.Create(t).Error; err != nil {
return 0, errors.Wrap(err, "create err")
}
return t.Id, nil
}
func (t *{{.StructName}}) Delete(db *gorm.DB) (err error) {
if err = db.Delete(t).Error; err != nil {
return errors.Wrap(err, "delete err")
}
return nil
}
func (t *{{.StructName}}) Updates(db *gorm.DB, m map[string]interface{}) (err error) {
if err = db.Model(&UserDemo{}).Where("id = ?", t.Id).Updates(m).Error; err != nil {
return errors.Wrap(err, "updates err")
}
return nil
}
type {{.QueryBuilderName}} struct {
order []string
where []struct {
prefix string
value interface{}
}
limit int
offset int
}
func (qb *{{.QueryBuilderName}}) buildQuery(db *gorm.DB) *gorm.DB {
ret := db
for _, where := range qb.where {
ret = ret.Where(where.prefix, where.value)
}
for _, order := range qb.order {
ret = ret.Order(order)
}
ret = ret.Limit(qb.limit).Offset(qb.offset)
return ret
}
func (qb *{{.QueryBuilderName}}) Count(db *gorm.DB) (int64, error) {
var c int64
res := qb.buildQuery(db).Model(&{{.StructName}}{}).Count(&c)
if res.Error != nil && res.Error == gorm.ErrRecordNotFound {
c = 0
}
return c, res.Error
}
func (qb *{{.QueryBuilderName}}) First(db *gorm.DB) (*{{.StructName}}, error) {
ret := &{{.StructName}}{}
res := qb.buildQuery(db).First(ret)
if res.Error != nil && res.Error == gorm.ErrRecordNotFound {
ret = nil
}
return ret, res.Error
}
func (qb *{{.QueryBuilderName}}) QueryOne(db *gorm.DB) (*{{.StructName}}, error) {
qb.limit = 1
ret, err := qb.QueryAll(db)
if len(ret) > 0 {
return ret[0], err
}
return nil, err
}
func (qb *{{.QueryBuilderName}}) QueryAll(db *gorm.DB) ([]*{{.StructName}}, error) {
var ret []*{{.StructName}}
err := qb.buildQuery(db).Find(&ret).Error
return ret, err
}
func (qb *{{.QueryBuilderName}}) Limit(limit int) *{{.QueryBuilderName}} {
qb.limit = limit
return qb
}
func (qb *{{.QueryBuilderName}}) Offset(offset int) *{{.QueryBuilderName}} {
qb.offset = offset
return qb
}
{{$queryBuilderName := .QueryBuilderName}}
{{range .OptionFields}}
func (qb *{{$queryBuilderName}}) Where{{call $.Helpers.Titelize .FieldName}}(p db_repo.Predicate, value {{.FieldType}}) *{{$queryBuilderName}} {
qb.where = append(qb.where, struct {
prefix string
value interface{}
}{
fmt.Sprintf("%v %v ?", "{{.ColumnName}}", p),
value,
})
return qb
}
func (qb *{{$queryBuilderName}}) OrderBy{{call $.Helpers.Titelize .FieldName}}(asc bool) *{{$queryBuilderName}} {
order := "DESC"
if asc {
order = "ASC"
}
qb.order = append(qb.order, "{{.ColumnName}} " + order)
return qb
}
{{end}}
`)