324 lines
9.1 KiB
Python
324 lines
9.1 KiB
Python
# write all your SQL queries in this file.
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from datetime import datetime, timedelta
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from flask_login import UserMixin
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from aula import conn, login_manager
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@login_manager.user_loader
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def load_user(user_id):
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cur = conn.cursor()
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user_sql = """
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SELECT * FROM users
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WHERE user_id = %s
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"""
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cur.execute(user_sql, (user_id,))
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user = User(cur.fetchone()) if cur.rowcount > 0 else None
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cur.close()
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return user
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#
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# Models
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#
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class Group(tuple):
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def __init__(self, group_data):
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self.group_id = group_data[0]
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self.name = group_data[1]
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self.hidden = group_data[2]
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super().__init__()
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def get_posts(self):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM posts
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WHERE group_id = %s
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"""
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cur.execute(sql_call, (self.group_id,))
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Posts = cur.fetchall() if cur.rowcount > 0 else None
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result = []
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for post_data in Posts:
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result.append(Post(post_data))
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cur.close()
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return result
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def get_threads(self):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM threads
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WHERE threads.group_id = %s
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"""
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cur.execute(sql_call, (self.group_id,))
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threads = cur.fetchall() if cur.rowcount > 0 else None
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result = []
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for thread_data in threads:
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result.append(Thread(thread_data))
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cur.close()
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return result
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class Message(tuple):
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def __init__(self, message_data):
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self.message_id = message_data[0]
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self.content = message_data[1]
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self.thread_id = message_data[2]
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self.author_id = message_data[3]
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self.author = None
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self._created_date = message_data[4]
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self._get_author()
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super().__init__()
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def _get_author(self):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM users WHERE user_id = %s
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"""
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cur.execute(sql_call, (self.author_id,))
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self.author = User(cur.fetchone())
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@property
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def created_date(self):
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now = datetime.now()
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if now.date() == self._created_date.date():
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return self._created_date.strftime("Idag %X")
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elif now.date() == self._created_date.date() + timedelta(days=1):
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return self._created_date.strftime("Igår %X")
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elif now < self._created_date + timedelta(days=7):
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dag = [
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"Mandag",
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"Tirsdag",
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"Onsdag",
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"Torsdag",
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"Fredag",
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"Lørdag",
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"Søndag",
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][int(self._created_date.strftime("%w"))]
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return self._created_date.strftime(f"{dag} %X")
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elif now.strftime("%y") == self._created_date.strftime("%y"):
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return self._created_date.strftime("%d/%m %X")
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else:
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return self._created_date.strftime("%d/%m/%y %X")
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class Post(tuple):
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def __init__(self, post_data):
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self.post_id = post_data[0]
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self.group_id = post_data[1]
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self.group = None
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self.author_id = post_data[2]
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self.author = None
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self.title = post_data[3]
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self.content = post_data[4]
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self.created_date = post_data[5]
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self._get_group()
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self._get_author()
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super().__init__()
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def _get_author(self):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM users WHERE user_id = %s
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"""
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cur.execute(sql_call, (self.author_id,))
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self.author = User(cur.fetchone())
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def _get_group(self):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM groups WHERE group_id = %s
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"""
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cur.execute(sql_call, (self.group_id,))
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self.group = Group(cur.fetchone())
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class Thread(tuple):
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def __init__(self, thread_data):
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self.thread_id = thread_data[0]
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self.title = thread_data[1]
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self.group_id = thread_data[2]
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super().__init__()
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def get_messages(self):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM messages
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WHERE thread_id = %s
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ORDER BY created_date ASC
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"""
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cur.execute(sql_call, (self.thread_id,))
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messages = cur.fetchall() if cur.rowcount > 0 else None
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result = []
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for message_data in messages:
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result.append(Message(message_data))
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cur.close()
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return result
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class User(tuple, UserMixin):
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def __init__(self, user_data):
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self.user_id = user_data[0]
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self.first_name = user_data[1]
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self.last_name = user_data[2]
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self.password = user_data[3]
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self.email = user_data[4]
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self.address = user_data[5]
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self.role = user_data[6]
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super().__init__()
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def get_id(self):
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return self.user_id
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def get_groups(self):
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cur = conn.cursor()
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sql_call = """
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SELECT groups.* FROM users_groups JOIN groups ON users_groups.group_id = groups.group_id WHERE users_groups.user_id = %s
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"""
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cur.execute(sql_call, (self.user_id,))
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groups = cur.fetchall()
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result = []
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for group_data in groups:
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result.append(Group(group_data))
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cur.close()
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return result
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def is_member_of_group(self, group_id):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM users_groups WHERE user_id = %s AND group_id = %s
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"""
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cur.execute(sql_call, (self.user_id, group_id))
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result = cur.fetchone()
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return cur.rowcount > 0
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def get_groups_joinable(self):
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cur = conn.cursor()
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sql_call = """
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SELECT groups.* FROM groups INNER JOIN users_groups ON groups.group_id = users_groups.group_id WHERE users_groups.user_id = %s
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UNION
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SELECT groups.* FROM groups WHERE groups.hidden = TRUE
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ORDER BY hidden ASC, name DESC
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"""
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cur.execute(sql_call, (self.user_id,))
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groups = cur.fetchall()
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result = []
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for group_data in groups:
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result.append(Group(group_data))
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cur.close()
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return result
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def leave_group(self, group_id):
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# TODO: Tjek om brugeren må forlade gruppen
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cur = conn.cursor()
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sql_call = """
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DELETE FROM users_groups WHERE user_id = %s AND group_id = %s
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"""
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cur.execute(sql_call, (self.user_id, group_id))
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conn.commit()
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cur.close()
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def join_group(self, group_id):
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cur = conn.cursor()
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sql_call = """
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INSERT INTO users_groups VALUES (%s, %s)
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"""
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cur.execute(sql_call, (self.user_id, group_id))
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conn.commit()
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cur.close()
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def get_threads(self):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM threads WHERE thread_id IN
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(
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SELECT thread_id FROM users_threads
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WHERE user_id = %s
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)
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"""
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cur.execute(sql_call, (self.user_id,))
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threads = cur.fetchall() if cur.rowcount > 0 else None
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result = []
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for thread_data in threads:
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result.append(Thread(thread_data))
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cur.close()
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return result
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def in_thread(self, thread_id):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM users_threads WHERE
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user_id = %s AND
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thread_id = %s
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"""
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cur.execute(sql_call, (self.user_id, thread_id))
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return cur.rowcount > 0
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def insert_users(user_id, first_name, last_name, password, email, adresse, role):
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cur = conn.cursor()
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sql_call = """
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INSERT INTO users(user_id, first_name, last_name, password, email, adresse, role)
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VALUES (%s, %s, %s, %s, %s, %s, %s)
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"""
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cur.execute(sql_call, (user_id, first_name, last_name, password, email, adresse, role))
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# Husk commit() for INSERT og UPDATE, men ikke til SELECT!
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conn.commit()
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cur.close()
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def select_users_by_id(user_id):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM users
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WHERE user_id = %s
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"""
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cur.execute(sql_call, (user_id,))
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user = User(cur.fetchone()) if cur.rowcount > 0 else None
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cur.close()
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return user
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def select_users_by_email(email):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM users
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WHERE email = %s
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"""
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cur.execute(sql_call, (email,))
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user = User(cur.fetchone()) if cur.rowcount > 0 else None
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cur.close()
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return user
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def get_posts_for_user(user_id):
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cur = conn.cursor()
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sql_call = """
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SELECT * FROM posts
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WHERE group_id in (
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SELECT group_id FROM users_groups
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WHERE user_id = %s
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)
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"""
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cur.execute(sql_call, (user_id,))
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user = [Post(i) for i in cur.fetchmany(50)] if cur.rowcount > 0 else []
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cur.close()
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return user
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def get_group(group_id):
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cur = conn.cursor()
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sql = """
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SELECT * FROM groups
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WHERE group_id = %s
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"""
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cur.execute(sql, (group_id,))
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group = Group(cur.fetchone()) if cur.rowcount > 0 else None
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cur.close()
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return group
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def get_thread(thread_id):
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cur = conn.cursor()
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sql = """
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SELECT * FROM threads
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WHERE thread_id = %s
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"""
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cur.execute(sql, (thread_id,))
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thread = Thread(cur.fetchone()) if cur.rowcount > 0 else None
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cur.close()
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return thread
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