Initial implementation of new task mgmt system 👮

database/migrations/2017_09_09_125253_AddChainedTasksAbility.php

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+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddChainedTasksAbility extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        Schema::table('tasks', function (Blueprint $table) {
+            $table->unsignedInteger('parent_task_id')->after('id')->nullable();
+            $table->unsignedInteger('chain_order')->after('parent_task_id')->nullable();
+            $table->unsignedInteger('chain_delay')->after('minute')->nullable();
+            $table->string('name')->after('server_id')->nullable();
+
+            $table->foreign('parent_task_id')->references('id')->on('tasks')->onDelete('cascade');
+            $table->index(['parent_task_id', 'chain_order']);
+
+            $table->dropForeign(['user_id']);
+            $table->dropColumn('user_id');
+            $table->dropColumn('year');
+            $table->dropColumn('month');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down()
+    {
+        Schema::table('tasks', function (Blueprint $table) {
+            $table->dropForeign(['parent_task_id']);
+            $table->dropIndex(['parent_task_id', 'chain_order']);
+            $table->dropColumn('parent_task_id');
+            $table->dropColumn('chain_order');
+            $table->dropColumn('chain_delay');
+            $table->dropColumn('name');
+
+            $table->unsignedInteger('user_id')->after('id')->nullable();
+            $table->string('year')->after('queued')->default('*');
+            $table->string('month')->after('year')->default('*');
+            $table->foreign('user_id')->references('id')->on('users');
+        });
+    }
+}

database/migrations/2017_09_09_162204_AddNullableNextRunColumn.php

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+<?php
+
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddNullableNextRunColumn extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up()
+    {
+        Schema::table('tasks', function (Blueprint $table) {
+            $table = DB::getQueryGrammar()->wrapTable('tasks');
+            DB::statement('ALTER TABLE ' . $table . ' CHANGE `next_run` `next_run` TIMESTAMP NULL;');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down()
+    {
+        Schema::table('tasks', function (Blueprint $table) {
+            $table = DB::getQueryGrammar()->wrapTable('tasks');
+            DB::statement('ALTER TABLE ' . $table . ' CHANGE `next_run` `next_run` TIMESTAMP NOT NULL;');
+        });
+    }
+}