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""" |
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byceps.services.brand.service |
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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:Copyright: 2006-2020 Jochen Kupperschmidt |
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:License: Modified BSD, see LICENSE for details. |
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""" |
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from typing import List, Optional |
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from ...database import db |
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from ...typing import BrandID |
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from .models.brand import Brand as DbBrand |
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from .models.setting import Setting as DbSetting |
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from .transfer.models import Brand |
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def create_brand(brand_id: BrandID, title: str) -> Brand: |
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"""Create a brand.""" |
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brand = DbBrand(brand_id, title) |
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db.session.add(brand) |
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db.session.commit() |
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return _db_entity_to_brand(brand) |
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def update_brand( |
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brand_id: BrandID, title: str, *, image_filename: Optional[str] = None |
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) -> Brand: |
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"""Update a brand.""" |
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brand = _get_db_brand(brand_id) |
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brand.title = title |
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brand.image_filename = image_filename |
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db.session.commit() |
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return _db_entity_to_brand(brand) |
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def delete_brand(brand_id: BrandID) -> None: |
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"""Delete a brand.""" |
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db.session.query(DbSetting) \ |
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.filter_by(brand_id=brand_id) \ |
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.delete() |
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db.session.query(DbBrand) \ |
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.filter_by(id=brand_id) \ |
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.delete() |
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db.session.commit() |
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def find_brand(brand_id: BrandID) -> Optional[Brand]: |
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"""Return the brand with that id, or `None` if not found.""" |
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brand = _get_db_brand(brand_id) |
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if brand is None: |
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return None |
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return _db_entity_to_brand(brand) |
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def _get_db_brand(brand_id: BrandID) -> DbBrand: |
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"""Return the brand with that ID.""" |
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return DbBrand.query.get(brand_id) |
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def get_all_brands() -> List[Brand]: |
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"""Return all brands, ordered by title.""" |
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brands = DbBrand.query \ |
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.order_by(DbBrand.title) \ |
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.all() |
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return [_db_entity_to_brand(brand) for brand in brands] |
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def count_brands() -> int: |
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"""Return the number of brands.""" |
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return DbBrand.query.count() |
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def _db_entity_to_brand(brand: DbBrand) -> Brand: |
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if brand.image_filename: |
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image_url_path = f'/data/global/brand_images/{brand.image_filename}' |
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else: |
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image_url_path = None |
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return Brand( |
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brand.id, |
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brand.title, |
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brand.image_filename, |
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image_url_path, |
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) |
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byceps /
byceps
