update

controllers/showpost.go

@@ -2,19 +2,69 @@ package controllers
 
 import (
 	"go_blog/models"
+	"go_blog/themes" // <-- 确保导入 themes 包
 	"net/http"
 	"strconv"
 
 	"github.com/gin-gonic/gin"
+	"gorm.io/gorm" // <-- 确保导入 gorm
 )
 
 func ShowPost(c *gin.Context) {
-
-	id, err := strconv.ParseInt(c.Param("id"), 10, 32)
-	if err != nil {
+	tm, exists := c.Get("ThemeManager")
+	if !exists {
+		c.String(http.StatusInternalServerError, "Theme manager not found")
 		return
 	}
+	themeManager, ok := tm.(*themes.ThemeManager)
+	if !ok {
+		c.String(http.StatusInternalServerError, "Invalid theme manager type")
+		return
+	}
+
+	idParam := c.Param("id")
+	id, err := strconv.ParseInt(idParam, 10, 32)
+	if err != nil {
+		c.String(http.StatusBadRequest, "Invalid post ID format")
+		return
+	}
+
 	var content = models.Content{Cid: int32(id)}
-	models.DB.First(&content)
-	c.HTML(http.StatusOK, "post.tmpl", content)
+	// 从 Gin 上下文中获取 DB 实例
+	dbInterface, exists := c.Get("DB")
+	if !exists {
+		c.String(http.StatusInternalServerError, "DB not found in context")
+		return
+	}
+	db, ok := dbInterface.(*gorm.DB)
+	if !ok {
+		c.String(http.StatusInternalServerError, "Invalid DB type in context")
+		return
+	}
+
+	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
+	}
+
+	// 假设你的主题中有一个名为 "post" 的模板 (post.html 或 post.tmpl)
+	// 注意：当前的 default 主题 (web/themes/default/templates/) 并没有 post.tmpl，你需要添加它。
+	tpl := themeManager.GetTemplate("post")
+	if tpl == nil {
+		c.String(http.StatusInternalServerError, "Template 'post' not found in current theme: "+themeManager.CurrentTheme()+". Make sure 'post.html' or 'post.tmpl' exists in the theme's templates directory.")
+		return
+	}
+
+	c.Status(http.StatusOK)
+	c.Header("Content-Type", "text/html; charset=utf-8")
+	// 将整个 content 对象传递给模板。模板内部通过 {{ .Title }} {{ .Text }} 等访问。
+	err = tpl.Execute(c.Writer, content)
+	if err != nil {
+		c.String(http.StatusInternalServerError, "Error rendering template: "+err.Error())
+	}
 }