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crud.py
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crud.py
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"""CRUD operations"""
from model import db, User, Kdrama, Review, Playlist, PlaylistEntry, FollowPlaylist, LikeReview, connect_to_db
def create_user(fname, lname, email, password, username, image_path='', fav_genre=None):
"""Create and return a new user"""
user = User(fname=fname, lname=lname, email=email, password=password, username=username,
image_path=image_path, fav_genre=fav_genre)
db.session.add(user)
db.session.commit()
return user
def get_users():
'''Return a list of all users'''
return User.query.all()
def get_user_by_id(user_id):
'''Return a specific user'''
return User.query.get(user_id)
def get_user_by_email(email):
'''Return a user by email'''
user = User.query.filter(User.email == email).first()
return user
def get_user_by_username(username):
'''Return a user by username'''
user = User.query.filter(User.username == username).first()
return user
def update_user(user_id, image_path, fav_genre):
"""Create and return a new user"""
user = get_user_by_id(user_id)
user.image_path = image_path
user.fav_genre = fav_genre
db.session.commit()
return user
def create_kdrama(kdrama_id, title, overview, release_date, poster_path, backdrop_path):
"""Create and return a new kdrama."""
kdrama = Kdrama(kdrama_id = kdrama_id, title=title, overview=overview, release_date=release_date,
poster_path=poster_path, backdrop_path=backdrop_path)
db.session.add(kdrama)
db.session.commit()
return kdrama
def get_kdramas():
'''Return a list of all kdramas'''
return Kdrama.query.order_by(Kdrama.title).all()
def get_kdrama_by_id(kdrama_id):
''' Return a kdrama based off id '''
return Kdrama.query.get(kdrama_id)
def get_kdrama_by_title(title):
''' Return a kdrama based off title - top 10 results'''
return Kdrama.query.filter(Kdrama.title.ilike(f'%{title}%')).all()[:10]
def kdrama_autocomplete(title):
''' Return a kdrama based off title '''
return Kdrama.query.filter(Kdrama.title.ilike(f'%{title}%')).limit(10).all()
def get_reviews(kdrama_id):
''' Return a list of reviews based off kdrama_id '''
kdrama = get_kdrama_by_id(kdrama_id)
return kdrama.reviews
def get_review(user_id, kdrama_id):
''' Return a review based of user_id and kdrama_id '''
review = Review.query.filter(Review.user_id == user_id, Review.kdrama_id == kdrama_id).first()
return review
def get_reviews_for_user(user_id):
''' Get reviews created by a user '''
user = get_user_by_id(user_id)
return user.reviews
def create_review(rating, content, user_id, kdrama_id):
''' Creates and returns a new review by a user '''
review = Review(rating=rating, content=content, user_id=user_id, kdrama_id = kdrama_id)
db.session.add(review)
db.session.commit()
return review
def update_review(rating, content, review_id):
''' Updates values of review and returns updated review '''
review = Review.query.get(review_id)
review.update(rating, content)
db.session.commit()
return review
def create_playlist(user_id, title, content):
'''Creates and returns a new playlist by a user '''
playlist = Playlist(user_id=user_id, title=title, content=content)
db.session.add(playlist)
db.session.commit()
return playlist
def create_playlist_entry(kdrama_id, playlist_id):
''' Creates and returns a new playlist entry '''
playlist_entry = PlaylistEntry(playlist_id=playlist_id, kdrama_id=kdrama_id)
db.session.add(playlist_entry)
db.session.commit()
return playlist_entry
def get_playlist_entry(kdrama_id, playlist_id):
''' Returns if there is an entry with kdrama and playlist id'''
playlist_entry = PlaylistEntry.query.filter(PlaylistEntry.playlist_id==playlist_id, PlaylistEntry.kdrama_id==kdrama_id).first()
return playlist_entry
def get_user_playlists(user_id):
'''Returns the playlists of a user '''
user = get_user_by_id(user_id)
return user.playlists
def get_user_playlist(playlist_id):
'''Returns the playlist of a user '''
playlist = Playlist.query.get(playlist_id)
return playlist
def delete_playlist_entry(playlist_entry_id):
''' Deletes playlist entry '''
entry = PlaylistEntry.query.get(playlist_entry_id)
db.session.delete(entry)
db.session.commit()
def update_playlist(playlist_id, title, content):
''' Updates values of playlist and returns updated playlist '''
playlist = Playlist.query.get(playlist_id)
playlist.title = title
playlist.content = content
db.session.commit()
return playlist
def create_follow_playlist(user_id, playlist_id):
'''Creates a follow playlist relationship between a user and playist
and returns the relationship '''
follow = FollowPlaylist(user_id=user_id, playlist_id=playlist_id)
db.session.add(follow)
db.session.commit()
follow.playlist.add_follower()
db.session.commit()
return follow
def get_follow_playlist(user_id, playlist_id):
'''Gets a follow playlist relationship between a user and playlist
if it exists '''
follow = FollowPlaylist.query.filter( FollowPlaylist.user_id == user_id,
FollowPlaylist.playlist_id == playlist_id).first()
return follow
def delete_follow_playlist(follow_playlist_id):
'''Deletes specified follow playlist relationship '''
follow = FollowPlaylist.query.get(follow_playlist_id)
follow.playlist.subtract_follower()
db.session.delete(follow)
db.session.commit()
def get_followed_playlists(user_id):
'''Gets all the playlists a user followed '''
user = get_user_by_id(user_id)
result = []
for follow in user.followplaylists:
result.append(follow.playlist)
return result
def get_top_followed_playlists():
''' Get the top 10 playlists that users follow '''
pls = Playlist.query.order_by(Playlist.followers.desc()).all()
if (len(pls) > 10): return pls[:10]
return pls
def create_like_review(user_id, review_id):
'''Creates a like review relationship between a user and review
and returns the relationship '''
like = LikeReview(user_id=user_id, review_id=review_id)
db.session.add(like)
db.session.commit()
like.review.like()
db.session.commit()
return like
def get_like_review(user_id, review_id):
'''Gets a like review relationship between a user and review
if it exists '''
like = LikeReview.query.filter( LikeReview.user_id == user_id,
LikeReview.review_id == review_id).first()
return like
def delete_like_review(user_id, review_id):
'''Deletes specified like review relationship '''
like = get_like_review(user_id, review_id)
like.review.unlike()
db.session.delete(like)
db.session.commit()
def get_like_reviews(user_id):
'''Gets all the reviews a user like '''
user = get_user_by_id(user_id)
result = []
for like in user.likereviews:
result.append(like.review)
return result
def get_top_reviews():
''' Get the top 5 reviews that users like '''
revs = Review.query.order_by(Review.likes.desc()).all()
if (len(revs) > 5): return revs[:5]
return revs
if __name__ == '__main__':
from server import app
connect_to_db(app)