package models

import (
	"errors"
	"zhiyuan/pkg/db"
)

type Learn struct {
	ID         int    `json:"id"`
	CourseId   int    `json:"course_id"`
	AdminId    int    `json:"admin_id"`
	CoursesIds string `json:"courses_ids"`
	CreatedAt  int    `json:"created_at"`
	UpdatedAt  int    `json:"updated_at"`
}

func (Learn) TableName() string {
	return "zy_learn"
}

func (a Learn) GetOne(where map[string]interface{}, fields []string, retVal interface{}) (*Learn, error) {
	if retVal == nil {
		var learn *Learn
		err := db.GetOne(a.TableName(), where, fields, &learn)
		return learn, err
	} else {
		err := db.GetOne(a.TableName(), where, fields, retVal)
		return nil, err
	}
}

func (a Learn) GetMulti(where map[string]interface{}, fields []string, retVal interface{}) ([]*Learn, error) {
	if retVal == nil {
		var learn []*Learn
		err := db.GetMulti(a.TableName(), where, fields, &learn)
		return learn, err
	} else {
		err := db.GetMulti(a.TableName(), where, fields, retVal)
		return nil, err
	}
}

func (a Learn) GetOneRaw(where map[string]string, param map[string]interface{}, retVal interface{}) (*Learn, error) {
	learn, err := a.GetMultiRaw(where, param, retVal)
	if err != nil {
		return nil, err
	}
	if len(learn) == 0 {
		return nil, errors.New("empty record2")
	}
	return learn[0], nil
}

func (a Learn) GetMultiRaw(where map[string]string, param map[string]interface{}, retVal interface{}) ([]*Learn, error) {
	field := "SELECT * FROM zy_learn "
	if retVal == nil {
		var learn []*Learn
		err := db.GetMultiRaw(field, where, param, &learn)
		return learn, err
	} else {
		err := db.GetMultiRaw(field, where, param, retVal)
		return nil, err
	}
}