add 1st place

database/migrations/2021_04_03_041017_create_documents_table.php

@@ -0,0 +1,76 @@
+<?php
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+/**
+ * Class CreateDocumentsTable.
+ */
+class CreateDocumentsTable extends Migration
+{
+	/**
+	 * Run the migrations.
+	 *
+	 * @return void
+	 */
+	public function up()
+	{
+		Schema::create('documents', function(Blueprint $table) {
+            $table->increments('id');
+			$table->string('symbol', 30)->nullable();
+			$table->text('abstract')->nullable();
+			$table->unsignedInteger('book_id');
+			$table->string('type_id', 2);
+			$table->unsignedInteger('signer_id')->nullable();
+			$table->date('sign_at')->nullable();
+			$table->string('creator_id', 20);
+			$table->string('writer_id', 20)->nullable();
+			$table->date('effective_at');
+			$table->string('publisher_id', 30);
+			$table->unsignedInteger('link_id')->nullable();
+			$table->timestamps();
+			
+			$table->foreign('book_id')
+				->references('id')
+				->on('books')
+				->onUpdate('cascade');
+			$table->foreign('type_id')
+				->references('id')
+				->on('document_types')
+				->onUpdate('cascade');
+			$table->foreign('signer_id')
+				->references('id')
+				->on('signers')
+				->onUpdate('cascade');
+			$table->foreign('creator_id')
+				->references('id')
+				->on('users')
+				->onUpdate('cascade');
+			$table->foreign('writer_id')
+				->references('id')
+				->on('users')
+				->onUpdate('cascade');
+			$table->foreign('publisher_id')
+				->references('id')
+				->on('organizes')
+				->onUpdate('cascade');
+		});
+
+		Schema::table('documents', function (Blueprint $table) {
+			$table->foreign('link_id')
+				->references('id')
+				->on('documents')
+				->onUpdate('cascade');
+		});
+	}
+
+	/**
+	 * Reverse the migrations.
+	 *
+	 * @return void
+	 */
+	public function down()
+	{
+		Schema::drop('documents');
+	}
+}