fusenapi/model/fsproductmodel.go

package model

import (
	"context"
	"fmt"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
)

var _ FsProductModel = (*customFsProductModel)(nil)

type (
	// FsProductModel is an interface to be customized, add more methods here,
	// and implement the added methods in customFsProductModel.
	FsProductModel interface {
		fsProductModel
		GetProductListByConditions(ctx context.Context, productType int, sort string) ([]FsProduct, error)
		GetRandomProductList(ctx context.Context, limit int) (resp []FsProduct, err error)
	}

	customFsProductModel struct {
		*defaultFsProductModel
	}
)

// NewFsProductModel returns a model for the database table.
func NewFsProductModel(conn sqlx.SqlConn) FsProductModel {
	return &customFsProductModel{
		defaultFsProductModel: newFsProductModel(conn),
	}
}
func (m *defaultFsProductModel) GetProductListByConditions(ctx context.Context, productType int, sort string) (resp []FsProduct, err error) {
	query := fmt.Sprintf("select %s from %s where `type` = ? and `is_del` =? and `is_shelf` = ?",
		fsProductRows, m.table)
	switch sort {
	case "sort-asc":
		query = fmt.Sprintf("%s order by sort ASC", query)
	case "sort-desc":
		query = fmt.Sprintf("%s order by sort DESC", query)
	default:
		query = fmt.Sprintf("%s order by sort DESC", query)
	}
	err = m.conn.QueryRowsCtx(ctx, &resp, query, productType, 0, 1)
	if err != nil {
		return nil, err
	}
	return
}
func (m *defaultFsProductModel) GetRandomProductList(ctx context.Context, limit int) (resp []FsProduct, err error) {
	query := fmt.Sprintf("select %s from %s where  `is_del` =? and `is_shelf` = ? order by RAND() limit ?",
		fsProductRows, m.table)
	err = m.conn.QueryRowsCtx(ctx, &resp, query, 0, 1, limit)
	if err != nil {
		return nil, err
	}
	return
}