Uprava

backend/database/migrations/2025_10_20_120100_create_student_data_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void {
+        Schema::create('student_data', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('user_id')->unique()->constrained('users')->cascadeOnDelete();
+            $table->string('address')->nullable();
+            $table->string('personal_email')->nullable();
+            $table->string('study_field')->nullable(); 
+            $table->timestamps();
+        });
+    }
+    public function down(): void {
+        Schema::dropIfExists('student_data');
+    }
+};

backend/database/migrations/2025_10_20_120300_create_employers_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void {
+        Schema::create('employers', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('company_id')->constrained('companies')->cascadeOnDelete();
+            $table->foreignId('user_id')->unique()->constrained('users')->cascadeOnDelete(); 
+            $table->string('position')->nullable();
+            $table->timestamps();
+        });
+    }
+    public function down(): void {
+        Schema::dropIfExists('employers');
+    }
+};

backend/database/migrations/2025_10_20_120400_create_internships_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void {
+        Schema::create('internships', function (Blueprint $table) {
+            $table->id();
+
+           
+            $table->foreignId('user_id')->constrained('users');          
+            $table->foreignId('company_id')->constrained('companies');
+            $table->foreignId('employer_id')->nullable()->constrained('employers')->nullOnDelete(); 
+
+            
+            $table->string('agreement')->nullable();     
+            $table->date('start_date');
+            $table->date('end_date');
+            $table->enum('semester', ['ZS','LS']);
+            $table->smallInteger('year_of_study');
+            $table->text('position_description')->nullable();
+            $table->boolean('is_paid')->default(false);
+
+            
+            $table->unsignedBigInteger('status_id')->nullable();
+
+            $table->timestamps();
+
+            $table->index(['semester','company_id','user_id','status_id']);
+           
+        });
+    }
+    public function down(): void {
+        Schema::dropIfExists('internships');
+    }
+};

backend/database/migrations/2025_10_20_120500_create_internship_statuses_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void {
+        Schema::create('internship_statuses', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('internship_id')->constrained('internships')->cascadeOnDelete();
+            $table->enum('status', ['SUBMITTED','CONFIRMED','DENIED','DEFENDED','NOT_DEFENDED']);
+            $table->timestamp('changed')->useCurrent();
+            $table->foreignId('modified_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->text('note')->nullable();
+            $table->string('source', 30)->default('UI'); 
+            $table->timestamps();
+
+            $table->index(['internship_id','status']);
+        });
+    }
+    public function down(): void {
+        Schema::dropIfExists('internship_statuses');
+    }
+};