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import peewee as p
import os
import datetime
import re
db = p.Proxy()
class SqliteDatabase(p.SqliteDatabase):
foreign_keys = True
def _add_conn_hooks(self, conn):
p.SqliteDatabase._add_conn_hooks(self, conn)
conn.execute('PRAGMA foreign_keys = ON;').fetchone()
def init_sqlite(path):
db.initialize(SqliteDatabase(path))
db.connect()
db.create_tables(filter(lambda t: not t.table_exists(),
BaseModel.__subclasses__()))
class BaseModel(p.Model):
class Meta:
database = db
def __json__(self):
return self._data
def __repr__(self):
return '<{.__class__.__name__} {}>'.format(self, ' '.join(
map(lambda kv: '{0[0]}={0[1]}'.format(kv), self._data.items())))
class Feed(BaseModel):
created_date = p.DateTimeField(default=datetime.datetime.now)
url = p.CharField(unique=True)
title = p.CharField(null=True)
class Item(BaseModel):
created_date = p.DateTimeField(default=datetime.datetime.now)
feed = p.ForeignKeyField(Feed, related_name='items', on_delete='CASCADE')
uid = p.CharField()
title = p.CharField(null=True)
class Version(BaseModel):
created_date = p.DateTimeField(default=datetime.datetime.now)
item = p.ForeignKeyField(Item, related_name='versions', on_delete='CASCADE')
url = p.CharField()
title = p.CharField()
authors = p.CharField()
text = p.CharField()
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