Premiere verison route admin operationnelle

backend/sql/migrate_matches_add_cols.sql

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+-- Migrate existing matches table to expected columns
+
+-- Add columns if they don't exist
+ALTER TABLE IF EXISTS matches
+  ADD COLUMN IF NOT EXISTS player_a_id INT NULL,
+  ADD COLUMN IF NOT EXISTS player_b_id INT NULL,
+  ADD COLUMN IF NOT EXISTS court TEXT NULL,
+  ADD COLUMN IF NOT EXISTS start_time TIMESTAMP NULL,
+  ADD COLUMN IF NOT EXISTS score_a INT NOT NULL DEFAULT 0,
+  ADD COLUMN IF NOT EXISTS score_b INT NOT NULL DEFAULT 0,
+  ADD COLUMN IF NOT EXISTS finished BOOLEAN NOT NULL DEFAULT FALSE;
+
+-- Optionally add FKs if participants table exists
+DO $$
+BEGIN
+  IF EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name='participants') THEN
+    BEGIN
+      ALTER TABLE matches
+        ADD CONSTRAINT IF NOT EXISTS matches_player_a_fk FOREIGN KEY (player_a_id) REFERENCES participants(id) ON DELETE SET NULL,
+        ADD CONSTRAINT IF NOT EXISTS matches_player_b_fk FOREIGN KEY (player_b_id) REFERENCES participants(id) ON DELETE SET NULL;
+    EXCEPTION WHEN duplicate_object THEN
+      -- ignore if constraints already exist
+      NULL;
+    END;
+  END IF;
+END $$;
+
+-- Ensure finished default is respected on existing rows
+UPDATE matches SET finished = COALESCE(finished, FALSE);
+UPDATE matches SET score_a = COALESCE(score_a, 0);
+UPDATE matches SET score_b = COALESCE(score_b, 0);