log101-dot-dev-services/handlers/comment.go

// HANDLERS FOR COMMENTING ON POSTS
package handlers

import (
	"net/http"

	"github.com/gin-gonic/gin"

	DB "log101-blog-services/db"
	"log101-blog-services/models"
)

func GetComments(c *gin.Context) {
	db := DB.GetDB()
	postId := c.Query("postId")
	comments := []models.Comment{}

	// Post id is required
	if postId == "" {
		c.AbortWithStatus(http.StatusBadRequest)
		return
	}

	// Retrieve comments related to post
	rows := db.Where("post_id = ?", postId).Find(&comments)
	if rows.Error != nil {
		c.AbortWithStatus(http.StatusInternalServerError)
		return
	}

	// If there are no rows return empty response
	if rows.RowsAffected == 0 {
		c.AbortWithStatus(http.StatusNoContent)
		return
	} else {
		c.HTML(http.StatusOK, "comments.tmpl", gin.H{"Comments": comments})
	}

}

func PostComment(c *gin.Context) {
	db := DB.GetDB()
	postId := c.PostForm("postId")
	commentBody := c.PostForm("commentBody")
	username := c.PostForm("username")

	// post id and comment text is necessary
	if postId == "" || commentBody == "" {
		c.AbortWithStatus(http.StatusBadRequest)
		return
	}

	// username is anonymous if not present
	if username == "" {
		username = "anonim"
	}

	// save comment to database
	result := db.Create(&models.Comment{Body: commentBody, PostId: postId, Username: username})
	if result.Error != nil {
		c.AbortWithStatus(http.StatusInternalServerError)
		return
	}

	c.HTML(http.StatusOK, "comment.tmpl", gin.H{"Username": username, "Body": commentBody})
}