golang HTTP Restful 代碼自動生成，服務端代碼自動生成

前言

對日常的crud操作，除了不同表的model不同，基本上大部分操作都一致。爲了避免同類型勞動重複操作，特意簡制了http服務端的手腳架。
待更

包

import "github.com/fwhezfwhez/model_convert"

list

package main
import (
  	"encoding/json"
  	"fmt"
  	"github.com/fwhezfwhez/model_convert"
)

func main() {
	type LingqianOrder struct {
		Id       int             `gorm:"column:id;default:" json:"id" form:"id"`
		OrderId  string          `gorm:"column:order_id;default:" json:"order_id" form:"order_id"`
		GameId   int             `gorm:"column:game_id;default:" json:"game_id" form:"game_id"`
		UserId   int             `gorm:"column:user_id;default:" json:"user_id" form:"user_id"`
		OpenId   string          `gorm:"column:open_id;default:" json:"open_id" form:"open_id"`
		State    int             `gorm:"column:state;default:" json:"state" form:"state"`
		Request  json.RawMessage `gorm:"column:request;default:" json:"request" form:"request"`
		Response string          `gorm:"column:response;default:" json:"response" form:"response"`
	}

	fmt.Println(model_convert.GenerateListAPI(LingqianOrder{}, false, map[string]string{
		"${model}": "payModel.LingqianOrder",
		"${handler_name}" : "HTTPListLingqianOrder",
		"${handle_error}": `common.SaveError(e)`,
	}))
}

生成:

// Auto generate by github.com/fwhezfwhez/model_convert.GenerateList().
func HTTPListLingqianOrder(c *gin.Context) {
    var engine = db.DB.Model(&payModel.LingqianOrder{})

    id := c.DefaultQuery("id", "")
    if id != "" {
        engine = engine.Where("id != ?", id)
    }
    orderId := c.DefaultQuery("order_id", "")
    if orderId != "" {
        engine = engine.Where("order_id != ?", orderId)
    }
    gameId := c.DefaultQuery("game_id", "")
    if gameId != "" {
        engine = engine.Where("game_id != ?", gameId)
    }
    userId := c.DefaultQuery("user_id", "")
    if userId != "" {
        engine = engine.Where("user_id != ?", userId)
    }
    openId := c.DefaultQuery("open_id", "")
    if openId != "" {
        engine = engine.Where("open_id != ?", openId)
    }
    state := c.DefaultQuery("state", "")
    if state != "" {
        engine = engine.Where("state != ?", state)
    }
    response := c.DefaultQuery("response", "")
    if response != "" {
        engine = engine.Where("response != ?", response)
    }

    page := c.DefaultQuery("page", "1")
    size := c.DefaultQuery("size", "20")
    orderBy := c.DefaultQuery("order_by", "")
    var count int
    if e:= engine.Count(&count).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    var list = make([]payModel.LingqianOrder, 0, 20)
    if count == 0 {
        c.JSON(200, gin.H{"message": "success", "count": 0, "data": list})
        return
    }
    limit, offset := util.ToLimitOffset(size, page, count)
    engine = engine.Limit(limit).Offset(offset)
    if orderBy != "" {
        engine = engine.Order(util.GenerateOrderBy(orderBy))
    }
    if e:= engine.Find(&list).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    c.JSON(200, gin.H{"message": "success", "count": 0, "data": list})
}

get-one

Note:

// Generate get-one api code.
// To completely use these code, you might import:
// "github.com/fwhezfwhez/errorx"
// you can get 'errorx.Wrap(e)' above
//
// - ${db_instance} "db.DB"
// - ${handler_name} "HTTPListUser"
// - ${model} "model.User"
// - ${handle_error} "fmt.Println(e)"
func GenerateGetOneAPI()

Usage:

package main
import (
    "encoding/json"
    "fmt"
    "github.com/fwhezfwhez/model_convert"
)
func main() {
	type VxTemplateUser struct {
		Id     int    `gorm:"column:id;default:" json:"id" form:"id"`
		GameId int    `gorm:"column:game_id;default:" json:"game_id" form:"game_id"`
		UserId int    `gorm:"column:user_id;default:" json:"user_id" form:"user_id"`
		OpenId string `gorm:"column:open_id;default:" json:"open_id" form:"open_id"`

		TemplateId string `gorm:"column:template_id;default:" json:"template_id" form:"template_id"`
		State      int    `gorm:"column:state;default:" json:"state" form:"state"`
	}

	rs := model_convert.GenerateGetOneAPI(VxTemplateUser{}, map[string]string{
		"${model}": "payModel.LingqianOrder",
		"${handler_name}" : "HTTPGetOneLingqianOrder",
		"${handle_error}": `common.SaveError(e)`,
	})
	fmt.Println(rs)
}

Output:

// Auto generate by github.com/fwhezfwhez/model_convert.GenerateGetOneAPI().
func HTTPGetOneLingqianOrder(c *gin.Context) {
    id := c.Param("id")
    idInt, e := strconv.Atoi(id)
    if e!=nil {
        c.JSON(400, gin.H{"message": fmt.Sprintf("param 'id' requires int but got %s", id)})
        return
    }
    var count int
    if e:=db.DB.Model(&payModel.LingqianOrder{}).Where("id=?", idInt).Count(&count).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    if count ==0 {
        c.JSON(200, gin.H{"message": fmt.Sprintf("id '%s' record not found", id)})
        return
    }
    var instance payModel.LingqianOrder
    if e:=db.DB.Model(&payModel.LingqianOrder{}).Where("id=?", id).First(&instance).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    c.JSON(200, gin.H{"message": "success", "data": instance})
}

add-one

Note:

// Generate add one api code.
// To completely use these code, you might import:
// "github.com/fwhezfwhez/errorx"
// you can get 'errorx.Wrap(e)' above
//
// - ${db_instance} "db.DB"
// - ${handler_name} "HTTPListUser"
// - ${model} "model.User"
// - ${handle_error} "fmt.Println(e, string(debug.Stack()))"
func GenerateAddOneAPI()

package main
import (
    "encoding/json"
    "fmt"
    "github.com/fwhezfwhez/model_convert"
)
func main() {
	type VxTemplateUser struct {
		Id     int    `gorm:"column:id;default:" json:"id" form:"id"`
		GameId int    `gorm:"column:game_id;default:" json:"game_id" form:"game_id"`
		UserId int    `gorm:"column:user_id;default:" json:"user_id" form:"user_id"`
		OpenId string `gorm:"column:open_id;default:" json:"open_id" form:"open_id"`

		TemplateId string `gorm:"column:template_id;default:" json:"template_id" form:"template_id"`
		State      int    `gorm:"column:state;default:" json:"state" form:"state"`
	}

	rs := model_convert.GenerateAddOneAPI(VxTemplateUser{}, map[string]string{
		"${model}": "payModel.LingqianOrder",
		"${handler_name}" : "HTTPAddLingqianOrder",
		"${handle_error}": `common.SaveError(e)`,
	})
	fmt.Println(rs)
}

Output:

// Auto generate by github.com/fwhezfwhez/model_convert.GenerateAddOneAPI().
func HTTPAddLingqianOrder (c *gin.Context) {
    var param payModel.LingqianOrder
    if e := c.Bind(&param); e!=nil {
        c.JSON(400, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }

    if e:=db.DB.Model(&payModel.LingqianOrder{}).Create(&param).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    c.JSON(200, gin.H{"message": "success", "data": param})
}

delete-one

Note:

// Generate delete one api code.
// To completely use these code, you might import:
// "github.com/fwhezfwhez/errorx"
// you can get 'errorx.Wrap(e)' above
//
// - ${db_instance} "db.DB"
// - ${handler_name} "HTTPListUser"
// - ${model} "model.User"
// - ${handle_error} "fmt.Println(e, string(debug.Stack()))"
func GenerateDeleteOneAPI()

package main
import (
    "encoding/json"
    "fmt"
    "github.com/fwhezfwhez/model_convert"
)
func main() {
	type VxTemplateUser struct {
		Id     int    `gorm:"column:id;default:" json:"id" form:"id"`
		GameId int    `gorm:"column:game_id;default:" json:"game_id" form:"game_id"`
		UserId int    `gorm:"column:user_id;default:" json:"user_id" form:"user_id"`
		OpenId string `gorm:"column:open_id;default:" json:"open_id" form:"open_id"`

		TemplateId string `gorm:"column:template_id;default:" json:"template_id" form:"template_id"`
		State      int    `gorm:"column:state;default:" json:"state" form:"state"`
	}

	rs := GenerateDeleteOneAPI(VxTemplateUser{}, map[string]string{
		"${model}": "payModel.LingqianOrder",
		"${handler_name}" : "HTTPDeleteLingqianOrder",
		"${handle_error}": `common.SaveError(e)`,
	})
	fmt.Println(rs)
}

Output:

// Auto generate by github.com/fwhezfwhez/model_convert.GenerateDeleteOneAPI().
func HTTPDeleteLingqianOrder(c *gin.Context) {
    id := c.Param("id")
    idInt, e := strconv.Atoi(id)
    if e!=nil {
        c.JSON(400, gin.H{"message": fmt.Sprintf("param 'id' requires int but got %s", id)})
        return
    }
    var count int
    if e:=db.DB.Model(&payModel.LingqianOrder{}).Where("id=?", idInt).Count(&count).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    if count ==0 {
        c.JSON(200, gin.H{"message": fmt.Sprintf("id '%s' record not found", id)})
        return
    }
    var instance payModel.LingqianOrder
    if e:=db.DB.Model(&payModel.LingqianOrder{}).Where("id=?", id).Delete(&instance).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    c.JSON(200, gin.H{"message": "success"})
}

update-one

Note:

// Generate update one api code.
// To completely use these code, you might import:
// "github.com/fwhezfwhez/errorx"
// you can get 'errorx.Wrap(e)' above
//
// | field optional | default value | example value
// - ${args_forbid_update} | "" | "user_id, game_id"
// - ${db_instance} "db.DB" | "db.DB"
// - ${handler_name} "HTTPListUser" | HTTPUpdateUser |
// - ${model} "model.User" | "payModel.Order"
// - ${handle_error} "fmt.Println(e, string(debug.Stack()))" | raven.Throw(e)
func GenerateUpdateOneAPI()

package main
import (
    "encoding/json"
    "fmt"
    "github.com/fwhezfwhez/model_convert"
)
func main() {
	type VxTemplateUser struct {
		Id     int    `gorm:"column:id;default:" json:"id" form:"id"`
		GameId int    `gorm:"column:game_id;default:" json:"game_id" form:"game_id"`
		UserId int    `gorm:"column:user_id;default:" json:"user_id" form:"user_id"`
		OpenId string `gorm:"column:open_id;default:" json:"open_id" form:"open_id"`

		TemplateId string `gorm:"column:template_id;default:" json:"template_id" form:"template_id"`
		State      int    `gorm:"column:state;default:" json:"state" form:"state"`
	}

	rs := GenerateUpdateOneAPI(VxTemplateUser{}, map[string]string{
		"${model}": "payModel.LingqianOrder",
		"${handler_name}" : "HTTPUpdateLingqianOrder",
		"${handle_error}": `common.SaveError(e)`,
		"${args_forbid_update}": "UserId, game_id",
	})
	fmt.Println(rs)
}

Output:

// Auto generate by github.com/fwhezfwhez/model_convert.GenerateUpdateOneAPI().
func HTTPUpdateLingqianOrder(c *gin.Context) {
    id := c.Param("id")
    idInt, e := strconv.Atoi(id)
    if e!=nil {
        c.JSON(400, gin.H{"message": fmt.Sprintf("param 'id' requires int but got %s", id)})
        return
    }
    var count int
    if e:=db.DB.Model(&payModel.LingqianOrder{}).Where("id=?", idInt).Count(&count).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    if count ==0 {
        c.JSON(200, gin.H{"message": fmt.Sprintf("id '%s' record not found", id)})
        return
    }
    var param payModel.LingqianOrder
    if e:=c.Bind(&param);e!=nil {
        c.JSON(400, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }

    if !util.IfZero(param.UserId) {
        c.JSON(400, gin.H{"message": "field 'UserId' can't be modified'"})
        return
    }
    if !util.IfZero(param.GameId) {
        c.JSON(400, gin.H{"message": "field 'GameId' can't be modified'"})
        return
    }
    if e:=db.DB.Model(&payModel.LingqianOrder{}).Where("id=?", id).Updates(param).Error; e!=nil {
        common.SaveError(e)
        c.JSON(500, gin.H{"message": errorx.Wrap(e).Error()})
        return
    }
    c.JSON(200, gin.H{"message": "success"})
}