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<?php |
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use Illuminate\Support\Facades\Schema; |
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use Illuminate\Database\Schema\Blueprint; |
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use Illuminate\Database\Migrations\Migration; |
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class CreateForeignKey extends Migration |
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{ |
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/** |
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* Run the migrations. |
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* |
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* @return void |
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*/ |
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public function up() |
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{ |
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Schema::table('transition_states', function(Blueprint $table){ |
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$table->foreign('history_id') |
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->references('id') |
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->on('histories') |
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->onDelete('set null') |
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->onUpdate('restrict'); |
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}); |
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Schema::table('histories', function(Blueprint $table){ |
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$table->foreign('workflow_id') |
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->references('id') |
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->on('workflows') |
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->onDelete('set null') |
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->onUpdate('restrict'); |
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}); |
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Schema::table('histories', function(Blueprint $table){ |
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$table->foreign('workflow_transition_id') |
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->references('id') |
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->on('workflow_transition') |
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->onDelete('set null') |
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->onUpdate('restrict'); |
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}); |
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Schema::table('workflow_transition', function(Blueprint $table){ |
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$table->foreign('workflow_id') |
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->references('id') |
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->on('workflows') |
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->onDelete('set null') |
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->onUpdate('restrict'); |
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}); |
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Schema::table('workflow_state', function(Blueprint $table){ |
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$table->foreign('workflow_id') |
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->references('id') |
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->on('workflows') |
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->onDelete('set null') |
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->onUpdate('restrict'); |
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}); |
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} |
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/** |
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* Reverse the migrations. |
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* |
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* @return void |
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*/ |
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public function down() |
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{ |
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Schema::table('transition_states', function(Blueprint $table) { |
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$table->dropForeign('transition_states_history_id_foreign'); |
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}); |
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Schema::table('histories', function(Blueprint $table) { |
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$table->dropForeign('histories_workflow_id_foreign'); |
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}); |
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Schema::table('histories', function(Blueprint $table) { |
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$table->dropForeign('histories_workflow_transition_id_foreign'); |
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}); |
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Schema::table('workflow_state', function(Blueprint $table) { |
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$table->dropForeign('workflow_state_workflow_id_foreign'); |
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}); |
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Schema::table('workflow_transition', function(Blueprint $table) { |
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$table->dropForeign('workflow_transition_workflow_id_foreign'); |
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}); |
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} |
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} |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.