Criação de area tematica

app/AreaTematica.php

+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class AreaTematica extends Model
+{
+    protected $fillable = [
+        'nome',
+    ];
+
+    public function trabalho(){
+        return $this->hasMany('App\Trabalho', 'area_tematica_id');
+    }
+
+}

app/Trabalho.php

@@ -38,6 +38,7 @@ class Trabalho extends Model
       'coordenador_id',
       'proponente_id',
       'pivot',
+      'area_tematica_id',
   ];
 
 
@@ -64,6 +65,10 @@ class Trabalho extends Model
       return $this->belongsTo('App\SubArea');
   }
 
+  public function areaTematica(){
+     return $this->belongsTo('App\AreaTematica');
+  }
+
   public function autor(){
       return $this->belongsTo('App\User', 'autorId');
   }

database/migrations/2022_05_18_055323_create_area_tematicas_table.php

+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateAreaTematicasTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('area_tematicas', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->string('nome');
+
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('area_tematicas');
+    }
+}

database/migrations/2022_05_18_055612_add_area_tematica_to_trabalhos_table.php

+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddAreaTematicaToTrabalhosTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('trabalhos', function (Blueprint $table) {
+            $table->integer('area_tematica_id')->nullable();
+            $table->foreign('area_tematica_id')->references('id')->on('area_tematicas');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('trabalhos', function (Blueprint $table) {
+            //
+        });
+    }
+}