def add_post(author='aush',
creation_time=datetime.datetime.now,
content='This is just the beginning',
likes=0,
**kwargs):
"""
Args:
author: username of author of the post,
creation_time: date and time of creation of the post
Returns:
post_id / Error message
"""
if (check_user(author)):
post = Post()
post.author = author
post.creation_time = creation_time
post.content = content
post.likes = likes
post.save()
post_id = post.id
user = User.objects(username=author).first()
user.posts.append(post_id)
user.save()
return post_id
return None
def readPosts(**kwargs):
"""
Returns:
Returns All Posts Objects in a list
"""
posts = Post.objects()
return posts
def get_post_by_id(post_pk, **kwargs):
"""
Args:
post_pk
Returns:
Post Object
"""
post = Post.objects(id=post_pk).first()
return post
def deletePost(post_id, **kwargs):
"""
Args:
post_id: id of the post,
Returns:
Boolean - True/False
"""
if (check_post(post_id)):
post = Post.objects(id=post_id).first()
post.delete()
return True
return False
def change_post_content(post_id, content, **kwargs):
"""
Args:
post_id: id of the post,
content: content of the post
Returns:
Boolean - True/False
"""
if (check_post(post_id)):
post = Post.objects(id=post_id).first()
# print(post.content)
post.content = content
# print(post.content)
post.save()
return True
return False
def reduce_post_likes(post_id, username, **kwargs):
"""
Args:
post_id: id of the post,
username: username of the user unliking the post
Returns:
Boolean - True/False
"""
if (check_user(username) and check_post(post_id)):
post = Post.objects(id=post_id).first()
user = User.objects(username=username).first()
if (post_id in user.liked_posts):
post.likes = post.likes - 1
user.liked_posts.remove(post_id)
post.save()
user.save()
return True
return False
def check_post(post_id):
post = Post.objects(id=post_id).first()
if post is None:
return False
return True
def get_number_of_likes_by_postid(post_id, **kwargs):
post = Post.objects(id=post_id).first()
likes = post.likes
return likes
all_posts_added = []
all_posts_removed = []
# print('Num Objects in post_update : ', len(posts_updates))
for post_update_object in posts_updates:
update_string = post_update_object.update_value
updates_TwoPSet = TwoPSet().loadFromDict(
json_util.loads(update_string))
added_posts_jsons = updates_TwoPSet.addedValues()
for added_post_json in added_posts_jsons:
added_post = Post.from_json(added_post_json)
all_posts_added.append(added_post)
removed_posts_jsons = updates_TwoPSet.removedValues()
for removed_post_json in removed_posts_jsons:
removed_post = Post.from_json(removed_post_json)
all_posts_removed.append(removed_post)
# print('-----------------------------Added Posts-------------------------------')
# print("Num of all_posts_added : ", len(all_posts_added))
# print_posts(all_posts_added)
change_post_content(last_post_id, "The Red Roses")
# posts = readPosts(dbName=dbName)
# print_posts(posts)