Adding documentation comments

app/Models/ApplicationForm.php

@@ -89,6 +89,9 @@ public function user(): \Illuminate\Database\Eloquent\Relations\BelongsTo
         return $this->belongsTo('App\Models\User')->withoutGlobalScope('verified');
     }
 
+    /**
+     * Lists the files belonging to the application form.
+     */
     public function files(): \Illuminate\Database\Eloquent\Relations\HasMany
     {
         return $this->hasMany('App\Models\File');

app/Models/Workshop.php

@@ -50,32 +50,47 @@ class Workshop extends Model
         self::TORTENESZ,
     ];
 
+    /**
+     * Lists all members of the workshop.
+     */
     public function users()
     {
         return $this->belongsToMany(User::class, 'workshop_users');
     }
 
+    /**
+     * Lists the workshop's residents.
+     */
     public function residents()
     {
         return $this->users->filter(function ($user, $key) {
             return $user->isResident();
         });
     }
 
+    /**
+     * Lists the workshop's resident-externs.
+     */
     public function residentExterns()
     {
         return $this->users->filter(function ($user, $key) {
             return $user->isResidentExtern();
         });
     }
 
+    /**
+     * Lists the workshop's externs.
+     */
     public function externs()
     {
         return $this->users->filter(function ($user, $key) {
             return $user->isExtern();
         });
     }
 
+    /**
+     * Returns the color of the workshop's badge to be displayed.
+     */
     public function color()
     {
         switch ($this->name) {

app/Models/WorkshopBalance.php

@@ -15,11 +15,17 @@ class WorkshopBalance extends Model
         'used_balance',
     ];
 
+    /**
+     * Returns the workshop the balance belongs to.
+     */
     public function workshop()
     {
         return $this->belongsTo('App\Models\Workshop');
     }
 
+    /**
+     * Returns the semester the balance belongs to.
+     */
     public function semester()
     {
         return $this->belongsTo('App\Models\Semester');