add ability to delete posts

apps/post.lua

@@ -8,7 +8,7 @@ local util = require("util")
 local models = require("models")
 local Posts = models.Posts
 local Threads = models.Threads
-
+local PostHistory = models.PostHistory
 
 app:get("single_post", "/:post_id", function(self)
   local query = constants.FULL_POSTS_QUERY .. "WHERE posts.id = ?"
@@ -22,6 +22,33 @@ app:get("single_post", "/:post_id", function(self)
   return {render = "post.single-post"}
 end)
 
+app:post("delete_post", "/:post_id/delete", function(self)
+  local user = util.get_logged_in_user(self)
+  if not user then
+    return {redirect_to = self:url_for"all_topics"}
+  end
+  print("id is " .. self.params.post_id)
+  local post = Posts:find({id = self.params.post_id})
+  if not post then
+    return {redirect_to = self:url_for"all_topics"}
+  end
+  
+  local thread = Threads:find({id = post.thread_id})
+  if user:is_mod() then
+    post:delete()
+    util.inject_infobox(self, "Post deleted.")
+    return {redirect_to = self:url_for("thread", {slug = thread.slug})}
+  end
+  
+  if post.user_id ~= user.id then
+    return {redirect_to = self:url_for"all_topics"}
+  end
+  
+  post:delete()
+  util.inject_infobox(self, "Post deleted.")
+  return {redirect_to = self:url_for("thread", {slug = thread.slug})}
+end)
+
 app:get("edit_post", "/:post_id/edit", function(self)
   local user = util.get_logged_in_user(self)
   if not user then
@@ -74,4 +101,4 @@ app:post("edit_post", "/:post_id/edit", function(self)
   return {redirect_to = link}
 end)
 
-return app
+return app