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models/mvd_tcg_mtg_card_legality.py

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+"""Magic: The Gathering legality models."""
+
+from odoo import fields, models
+
+LEGALITY_SELECTION = [
+    ("legal", "Legal"),
+    ("not_legal", "Not Legal"),
+    ("restricted", "Restricted"),
+    ("banned", "Banned"),
+]
+
+
+class MvdTcgMtgCardLegality(models.Model):
+    """Store one legality status per MTG card and constructed format."""
+
+    _name = "mvd.tcg.mtg.card.legality"
+    _description = "MTG Card Legality"
+    _order = "format_sequence, id"
+
+    card_id = fields.Many2one(
+        "mvd.tcg.card",
+        required=True,
+        index=True,
+        ondelete="cascade",
+    )
+    format_id = fields.Many2one(
+        "mvd.tcg.mtg.format",
+        required=True,
+        index=True,
+        ondelete="restrict",
+    )
+    format_code = fields.Char(
+        related="format_id.code",
+        store=True,
+        index=True,
+    )
+    format_sequence = fields.Integer(
+        related="format_id.sequence",
+        store=True,
+        index=True,
+    )
+    status = fields.Selection(
+        selection=LEGALITY_SELECTION,
+        required=True,
+        default="not_legal",
+        index=True,
+    )
+
+    _card_format_unique = models.Constraint(
+        "UNIQUE (card_id, format_id)",
+        "The MTG legality format must be unique per card.",
+    )