Merge branch 'task' into journal

# Conflicts:
#	app/Http/Controllers/Users/StudentController.php
#	app/Models/SchoolClass.php
#	app/Models/Teacher.php
#	composer.json
#	composer.lock
#	database/migrations/2020_12_03_104028_create_bank_task_files_table.php
#	routes/api.php

database/migrations/2020_12_03_172010_create_tasks_table.php

@@ -0,0 +1,43 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateTasksTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('tasks', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedInteger('banktask_id');
+            $table->timestamp('deadline')->nullable();
+            $table->unsignedInteger('teacher_id')->nullable();
+            $table->unsignedInteger('class_id')->nullable();
+            $table->timestamps();
+
+            $table->foreign('banktask_id')->references('id')->on('bank_tasks')
+                ->onDelete('set null');
+
+//            $table->foreign('class_id')->references('id')->on('school_classes')
+//            ->onDelete('cascade');
+//            $table->foreign('teacher_id')->references('id')->on('teachers')
+//            ->onDelete('set null');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('tasks');
+    }
+}

database/migrations/2020_12_07_120455_create_answers_to_task_table.php

@@ -0,0 +1,42 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateAnswersToTaskTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('answers_to_task', function (Blueprint $table) {
+            $table->id();
+            $table->text('description')->nullable();
+            $table->smallInteger('mark')->nullable();
+            $table->text('comment_by_teacher')->nullable();
+            $table->boolean('checked')->default('0');
+            $table->unsignedInteger('task_id');
+            $table->unsignedInteger('student_id');
+            $table->boolean('review')->default('0');
+            $table->timestamps();
+
+            $table->foreign('task_id')->references('id')->on('tasks')
+                ->onDelete('set null');
+            $table->foreign('student_id')->references('id')->on('students');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('answers_to_task');
+    }
+}

database/migrations/2020_12_08_122859_create_task_files_table.php

@@ -0,0 +1,42 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateTaskFilesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('task_files', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->string('name');
+            $table->string('type');
+            $table->string('extension');
+            $table->string('url', 400);
+            $table->timestamps();
+            $table->unsignedInteger('task_id');
+            $table->unsignedInteger('user_id');
+
+            $table->foreign('task_id')->references('id')->on('tasks')
+                ->onDelete('cascade');
+            $table->foreign('user_id')->references('id')->on('users')
+                ->onDelete('cascade');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('task_files');
+    }
+}