Anna Schumaker
51a13a8a04
This table represents an individual medium in an album (such as a single CD). Each medium has an associated album, number, type, and (optional) title. This means we can have multiple media for a given album as long as they each have a different number or type. Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
93 lines
3.5 KiB
Python
93 lines
3.5 KiB
Python
# Copyright 2022 (c) Anna Schumaker.
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"""A custom Gio.ListModel for managing individual media in an album."""
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import sqlite3
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from gi.repository import GObject
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from .. import format
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from . import playlist
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class Medium(playlist.Playlist):
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"""Our custom Medium object representing a single disc in an album."""
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mediumid = GObject.Property(type=int)
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albumid = GObject.Property(type=int)
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number = GObject.Property(type=int, default=1)
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type = GObject.Property(type=str)
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def get_album(self) -> playlist.Playlist:
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"""Get this Medium's Album."""
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return self.table.sql.albums.rows.get(self.albumid)
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def rename(self, new_name: str) -> bool:
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"""Rename this medium."""
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return self.table.rename(self, new_name)
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@property
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def primary_key(self) -> int:
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"""Get this Medium's primary key."""
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return self.mediumid
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@GObject.Property(type=playlist.Playlist)
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def parent(self) -> playlist.Playlist | None:
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"""Get this Medium's parent playlist."""
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return self.get_album()
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class Table(playlist.Table):
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"""Our Media Table."""
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def do_construct(self, **kwargs) -> Medium:
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"""Construct a new medium."""
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return Medium(**kwargs)
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def do_get_sort_key(self, medium: Medium) -> tuple[int, int, tuple, str]:
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"""Get the sort key for a medium."""
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return (medium.albumid, medium.number,
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format.sort_key(medium.name), medium.type)
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def do_sql_delete(self, medium: Medium) -> sqlite3.Cursor:
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"""Delete a medium."""
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return self.sql("DELETE FROM media WHERE mediumid=?",
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medium.mediumid)
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def do_sql_glob(self, glob: str) -> sqlite3.Cursor:
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"""Search for media names matching the search text."""
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return self.sql("""SELECT mediumid FROM media
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WHERE CASEFOLD(name) GLOB ?""", glob)
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def do_sql_insert(self, album: playlist.Playlist, name: str,
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*, number: int, type: str = "") -> sqlite3.Cursor | None:
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"""Create a new medium."""
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if cur := self.sql("""INSERT INTO media (albumid, number, name, type)
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VALUES (?, ?, ?, ?)""",
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album.albumid, number, name, type):
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return self.sql("SELECT * FROM media_view WHERE mediumid=?",
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cur.lastrowid)
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def do_sql_select_all(self) -> sqlite3.Cursor:
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"""Load media from the database."""
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return self.sql("SELECT * FROM media_view")
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def do_sql_select_one(self, album: playlist.Playlist,
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*, number: int, type: str = "") -> sqlite3.Cursor:
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"""Look up a medium by album, number, and type."""
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return self.sql("""SELECT mediumid FROM media
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WHERE albumid=? AND number=? AND type=?""",
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album.albumid, number, type)
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def do_sql_update(self, medium: Medium,
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column: str, newval) -> sqlite3.Cursor:
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"""Update a medium."""
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return self.sql(f"UPDATE media SET {column}=? WHERE mediumid=?",
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newval, medium.mediumid)
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def rename(self, medium: Medium, new_name: str) -> bool:
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"""Rename a medium."""
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if (new_name := new_name.strip()) != medium.name:
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if self.update(medium, "name", new_name):
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self.store.remove(medium)
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medium.name = new_name
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self.store.append(medium)
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return True
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return False
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