0150-has-applied-yet-logic

Author: piotrjura

job-board/app/Models/Job.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Auth\Authenticatable;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Builder;
@@ -31,6 +32,15 @@ public function jobApplications(): HasMany
         return $this->hasMany(JobApplication::class);
     }
 
+    public function hasUserApplied(Authenticatable|User|int $user): bool
+    {
+        return $this->where('id', $this->id)
+            ->whereHas(
+                'jobApplications',
+                fn($query) => $query->where('user_id', '=', $user->id ?? $user)
+            )->exists();
+    }
+
     public function scopeFilter(Builder|QueryBuilder $query, array $filters): Builder|QueryBuilder
     {
         return $query->when($filters['search'] ?? null, function ($query, $search) {

job-board/app/Policies/JobPolicy.php

@@ -66,6 +66,6 @@ public function forceDelete(User $user, Job $job): bool
 
     public function apply(User $user, Job $job): bool
     {
-        return false;
+        return !$job->hasUserApplied($user);
     }
 }

job-board/resources/views/job/show.blade.php

@@ -6,9 +6,15 @@
       {!! nl2br(e($job->description)) !!}
     </p>
 
-    <x-link-button :href="route('job.application.create', $job)">
-      Apply
-    </x-link-button>
+    @can('apply', $job)
+      <x-link-button :href="route('job.application.create', $job)">
+        Apply
+      </x-link-button>
+    @else
+      <div class="text-center text-sm font-medium text-slate-500">
+        You already applied to this job
+      </div>
+    @endcan
   </x-job-card>
 
   <x-card class="mb-4">