Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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9 | class AddForeignKeysToCallbackQueryTable extends Migration |
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10 | { |
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11 | public function up(): void |
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12 | { |
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13 | Schema::table('callback_query', static function (Blueprint $table) { |
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14 | $table->foreign('user_id', 'callback_query_ibfk_1')->references('id')->on('user')->onUpdate('RESTRICT')->onDelete('RESTRICT'); |
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15 | $table->foreign('chat_id', 'callback_query_ibfk_2')->references('chat_id')->on('message')->onUpdate('RESTRICT')->onDelete('RESTRICT'); |
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16 | }); |
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17 | } |
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19 | public function down(): void |
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24 | }); |
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25 | } |
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26 | } |
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