feat: 迁移plant

app/plant/rpc/internal/logic/likePostLogic.go

@@ -2,11 +2,12 @@ package logic
 
 import (
 	"context"
-
+	"errors"
+	"github.com/zeromicro/go-zero/core/logx"
+	"gorm.io/gorm"
+	plantModel "sundynix-micro-go/app/plant/model"
 	"sundynix-micro-go/app/plant/rpc/internal/svc"
 	"sundynix-micro-go/app/plant/rpc/plant"
-
-	"github.com/zeromicro/go-zero/core/logx"
 )
 
 type LikePostLogic struct {
@@ -16,15 +17,21 @@ type LikePostLogic struct {
 }
 
 func NewLikePostLogic(ctx context.Context, svcCtx *svc.ServiceContext) *LikePostLogic {
-	return &LikePostLogic{
-		ctx:    ctx,
-		svcCtx: svcCtx,
-		Logger: logx.WithContext(ctx),
-	}
+	return &LikePostLogic{ctx: ctx, svcCtx: svcCtx, Logger: logx.WithContext(ctx)}
 }
 
 func (l *LikePostLogic) LikePost(in *plant.LikePostReq) (*plant.CommonResp, error) {
-	// todo: add your logic here and delete this line
-
-	return &plant.CommonResp{}, nil
+	var existing plantModel.PostLike
+	err := l.svcCtx.DB.Where("user_id = ? AND post_id = ?", in.UserId, in.PostId).First(&existing).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		like := plantModel.PostLike{UserID: in.UserId, PostID: in.PostId}
+		if err2 := l.svcCtx.DB.Create(&like).Error; err2 != nil {
+			return nil, err2
+		}
+		l.svcCtx.DB.Model(&plantModel.Post{}).Where("id = ?", in.PostId).UpdateColumn("like_count", gorm.Expr("like_count + 1"))
+	} else {
+		l.svcCtx.DB.Delete(&existing)
+		l.svcCtx.DB.Model(&plantModel.Post{}).Where("id = ?", in.PostId).UpdateColumn("like_count", gorm.Expr("GREATEST(like_count - 1, 0)"))
+	}
+	return &plant.CommonResp{Code: 0, Msg: "ok"}, nil
 }