go_blog/controllers/showpost.go

package controllers

import (
	"go_blog/models"
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
)

// ShowPost 显示文章详情
func ShowPost(c *gin.Context) {
	themeManager, ok := getThemeManager(c)
	if !ok {
		c.String(http.StatusInternalServerError, "Theme manager not found")
		return
	}

	idParam := c.Param("id")
	id, err := strconv.ParseInt(idParam, 10, 32)
	if err != nil {
		c.String(http.StatusBadRequest, "Invalid post ID format")
		return
	}

	db, ok := getDB(c)
	if !ok {
		c.String(http.StatusInternalServerError, "DB not found")
		return
	}

	var content = models.Content{Cid: int32(id)}
	result := db.First(&content)
	if result.Error != nil {
		if result.Error == gorm.ErrRecordNotFound {
			c.String(http.StatusNotFound, "Post not found")
		} else {
			c.String(http.StatusInternalServerError, "Error fetching post: "+result.Error.Error())
		}
		return
	}

	tpl := themeManager.GetTemplate("post")
	if tpl == nil {
		c.String(http.StatusInternalServerError, "Template 'post' not found")
		return
	}

	c.Header("Content-Type", "text/html; charset=utf-8")
	tpl.Execute(c.Writer, content)
}