xps-server-go/repositories/model_repo.go

package repositories

import (
	"fmt"
	"time"
	"xorm.io/xorm"
	"xps/datamodel"
    "xps/viewmodel"
)

type ModelRepo struct {
	engine *xorm.Engine
}

func NewModelRepo(engine *xorm.Engine) *ModelRepo {
	return &ModelRepo{
		engine: engine,
	}
}

func (d *ModelRepo) GetPage(m map[string]interface{}) (*viewmodel.PageResult, error) {
	limit     := m["limit"].(int)
	page      := m["page"].(int)

	sqlSelect := ` SELECT A.*                `
	sqlFrom   := ` FROM   ds_model   AS A    `
	sqlWhere  := ` WHERE  A.deleted_flag = 0 `
	if keywords, ok := m["keywords"]; ok {
		sqlWhere += ` AND A.model_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
	}

	sqlCount  := ` SELECT COUNT(*)           `
	total, err1 := d.engine.SQL(sqlCount + sqlFrom + sqlWhere).Count(new(datamodel.Model))
	if err1 != nil {
		return nil, err1
	}

	sqlOrderBy := " ORDER BY model_id ASC "
	pageStart  := (page - 1) * limit
	sqlLimit   := fmt.Sprintf(" LIMIT %d OFFSET %d ", limit, pageStart)

	datalist   := make([]datamodel.Model, 0)
	err2 := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy + sqlLimit).Find(&datalist)
	if err2 != nil {
		return nil, err2
	}

	pageResult := &viewmodel.PageResult{}
	pageResult.Data     = datalist
	pageResult.Total    = total
	pageResult.PageSize = limit
	pageResult.Page     = page
	return pageResult, nil
}

func (d *ModelRepo) GetList(m map[string]interface{}) ([]viewmodel.ModelInfo, error) {
	sqlSelect := ` SELECT A.*               `
	sqlFrom   := ` FROM  ds_model   AS A    `
	sqlWhere  := ` WHERE A.deleted_flag = 0 `
	if keywords, ok := m["keywords"]; ok {
		sqlWhere += ` AND A.model_title like ` + "'%" + fmt.Sprintf("%s", keywords) + "%'"
	}

	sqlOrderBy := " ORDER BY model_id ASC "
	datalist   := make([]viewmodel.ModelInfo, 0)
	err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
	if err != nil {
		return nil, err
	}
	return datalist, nil
}

func (d *ModelRepo) GetAll() ([]viewmodel.ModelInfo, error) {
	sqlSelect  := ` SELECT A.*               `
	sqlFrom    := ` FROM  ds_model   AS A    `
	sqlWhere   := ` WHERE A.deleted_flag = 0 `
	sqlOrderBy := " ORDER BY model_id ASC "
	datalist   := make([]viewmodel.ModelInfo, 0)
	err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere + sqlOrderBy).Find(&datalist)
	if err != nil {
		return nil, err
	}
	return datalist, nil
}

func (d *ModelRepo) GetById(modelId int64) (*viewmodel.ModelInfo, error) {
	sqlSelect  := ` SELECT A.*               `
	sqlFrom    := ` FROM  ds_model   AS A    `
	sqlWhere   := ` WHERE A.deleted_flag = 0 `
	sqlWhere   += fmt.Sprintf(" AND A.model_id = %d ", modelId)
	
	data := &viewmodel.ModelInfo{}
	has, err := d.engine.SQL(sqlSelect + sqlFrom + sqlWhere).Get(data)
	if !has || err != nil {
		return nil, err
	} else {
		return data, nil
	}
}

func (d *ModelRepo) Create(data *datamodel.Model) error {
	data.CreatedAt = time.Now()
	_, err := d.engine.Insert(data)
	return err
}

func (d *ModelRepo) Update(data *datamodel.Model) error {
	modelId := data.ModelId

	data.UpdatedAt = time.Now()
	_, err := d.engine.Where("model_id = ?", modelId).Update(data)
	return err
}

func (d *ModelRepo) Delete(m map[string]interface{}) error {
	modelId   := m["modelId"].(int64)
	deletedBy := m["deletedBy"].(int64)

	data := &datamodel.Model{}
	data.DeletedFlag = 1
	data.DeletedBy = deletedBy
	data.DeletedAt = time.Now()
	_, err := d.engine.Where("model_id = ?", modelId).Update(data)
	return err
}