def post(self, post_id):
# if no signed in user, redirect to the login page
if not self.user:
self.redirect('/login')
post = Post.get_by_id(int(post_id))
if post:
query = Like.query(Like.post == post.key)
like = query.get()
else:
self.render_404(error_message="Post {} not found.".format(post_id))
if like:
post_id = post.key.id()
like.key.delete()
# redirect to the post page
self.redirect_after_delay('/{}'.format(post_id))
else:
# create a dictionary to hold any error messages
params = dict(post=post,
comments=post.get_comments(),
owner=post.user.get())
# user has not liked this post, so show an error.
params['error'] = "Cannot unlike a post which has not been liked."
self.render("permalink.html", **params)
def render(self):
# replace new line characters with breaks
self.__render_text = self.content.replace('\n', '<br>')
comments_query = Comment.query(Comment.post == self.key)\
.order(-Comment.created)
num_comments = comments_query.count()
if num_comments == 1:
text = "comment"
else:
text = "comments"
comment_count = "{} {}".format(num_comments, text)
likes_query = Like.query(Like.post == self.key)
num_likes = likes_query.count()
if num_likes == 1:
text = "like"
else:
text = "likes"
like_count = "{} {}".format(num_likes, text)
user = self.user.get()
return utils.render_str('post.html',
post=self,
author=user,
comment_count=comment_count,
like_count=like_count)
def is_liked_by(self, user):
# get all likes for this post
query = Like.query(Like.post == self.key)
results = query.get()
q = query.filter(Like.user == user.key)
result = q.fetch()
# print "result = {}".format(result)
return result
def get_likes(self):
""" queries the datastore for likes on this post """
likes_query = Like.query(Like.post == self.key)
likes = likes_query.fetch()
return likes