Add unique constraint in relational tables.
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c71467804e
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03b1250006
@ -55,8 +55,8 @@ void db::open(void) {
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sqlite3_exec(sqlite_db, "CREATE TABLE tags(id INTEGER PRIMARY KEY AUTOINCREMENT, name STRING UNIQUE);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE tags(id INTEGER PRIMARY KEY AUTOINCREMENT, name STRING UNIQUE);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE ingredients(id INTEGER PRIMARY KEY AUTOINCREMENT, name STRING UNIQUE);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE ingredients(id INTEGER PRIMARY KEY AUTOINCREMENT, name STRING UNIQUE);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE recipes(id INTEGER PRIMARY KEY AUTOINCREMENT, name STRING UNIQUE, description STRING);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE recipes(id INTEGER PRIMARY KEY AUTOINCREMENT, name STRING UNIQUE, description STRING);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE recipe_tag(recipe_id INTEGER REFERENCES recipes(id) ON DELETE CASCADE, tag_id INTEGER REFERENCES tags(id) ON DELETE CASCADE);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE recipe_tag(recipe_id INTEGER REFERENCES recipes(id) ON DELETE CASCADE, tag_id INTEGER REFERENCES tags(id) ON DELETE CASCADE, UNIQUE(recipe_id, tag_id));", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE recipe_ingredient(recipe_id INTEGER REFERENCES recipes(id) ON DELETE CASCADE, ingredient_id INTEGER REFERENCES ingredients(id) ON DELETE CASCADE);", nullptr, nullptr, nullptr);
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sqlite3_exec(sqlite_db, "CREATE TABLE recipe_ingredient(recipe_id INTEGER REFERENCES recipes(id) ON DELETE CASCADE, ingredient_id INTEGER REFERENCES ingredients(id) ON DELETE CASCADE, UNIQUE(recipe_id, ingredient_id));", nullptr, nullptr, nullptr);
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}
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}
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}
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}
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