79 lines
2.6 KiB
Python
79 lines
2.6 KiB
Python
from core.models.Model import Model
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from dataclasses import dataclass, field
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from dataclasses_json import config, Exclude
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from pytz import country_timezones
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from typing import Optional
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_table_name: str = 'locations'
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_table_definition: str = """
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'id' int UNIQUE,
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'code' varchar UNIQUE,
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'name' varchar UNIQUE
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"""
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@dataclass
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class Location(Model):
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code: str
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id: Optional[int] = field(
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default=None,
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metadata=config(exclude=Exclude.ALWAYS)
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)
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name: Optional[str] = field(
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default=None,
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metadata=config(exclude=Exclude.ALWAYS)
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)
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time_zone: str = None
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available: Optional[bool] = field(
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default=False,
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metadata=config(exclude=Exclude.ALWAYS)
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)
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def __post_init__(self):
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if self.time_zone is None:
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self.time_zone = country_timezones[self.code][0]
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self.available = self.exists(self.code)
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def is_available(self):
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return self.exists(self.code)
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@staticmethod
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def find_by_id(id: int):
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Model._create_table_if_not_exists(table_name=_table_name, table_definition=_table_definition)
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return Model._query_one('SELECT * FROM locations WHERE id = ? LIMIT 1', Location.factory, [id])
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@staticmethod
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def find(code: str):
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Model._create_table_if_not_exists(table_name=_table_name, table_definition=_table_definition)
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return Model._query_one('SELECT * FROM locations WHERE code = ? LIMIT 1', Location.factory, [code])
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@staticmethod
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def exists(code: str):
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Model._create_table_if_not_exists(table_name=_table_name, table_definition=_table_definition)
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return Model._query_exists('SELECT * FROM locations WHERE code = ?', [code])
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@staticmethod
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def all():
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Model._create_table_if_not_exists(table_name=_table_name, table_definition=_table_definition)
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return Model._query_all('SELECT * FROM locations', Location.factory)
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@staticmethod
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def truncate():
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Model._create_table_if_not_exists(table_name=_table_name, table_definition=_table_definition, drop_existing=True)
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@staticmethod
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def save_many(locations):
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Model._create_table_if_not_exists(table_name=_table_name, table_definition=_table_definition)
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Model._insert_many('INSERT INTO locations VALUES(?, ?, ?)', Location.tuple_factory, locations)
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@staticmethod
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def factory(cursor, row):
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local_fields = [column[0] for column in cursor.description]
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return Location(**{key: value for key, value in zip(local_fields, row)})
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@staticmethod
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def tuple_factory(location):
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return location.id, location.code, location.name
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