Use app bindings for model classes (#20)

src/Contracts/Answer.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace MattDaneshvar\Survey\Contracts;
+
+interface Answer
+{
+    //
+}

src/Contracts/Entry.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace MattDaneshvar\Survey\Contracts;
+
+interface Entry
+{
+    //
+}

src/Contracts/Question.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace MattDaneshvar\Survey\Contracts;
+
+interface Question
+{
+    //
+}

src/Contracts/Section.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace MattDaneshvar\Survey\Contracts;
+
+interface Section
+{
+    //
+}

src/Contracts/Survey.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace MattDaneshvar\Survey\Contracts;
+
+interface Survey
+{
+    //
+}

src/Models/Answer.php

@@ -3,8 +3,11 @@
 namespace MattDaneshvar\Survey\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use MattDaneshvar\Survey\Contracts\Answer as AnswerContract;
+use MattDaneshvar\Survey\Contracts\Entry;
+use MattDaneshvar\Survey\Contracts\Question;
 
-class Answer extends Model
+class Answer extends Model implements AnswerContract
 {
     /**
      * Answer constructor.
@@ -34,7 +37,7 @@ public function __construct(array $attributes = [])
      */
     public function entry()
     {
-        return $this->belongsTo(Entry::class);
+        return $this->belongsTo(get_class(app()->make(Entry::class)));
     }
 
     /**
@@ -44,6 +47,6 @@ public function entry()
      */
     public function question()
     {
-        return $this->belongsTo(Question::class);
+        return $this->belongsTo(get_class(app()->make(Question::class)));
     }
 }

src/Models/Entry.php

@@ -4,10 +4,13 @@
 
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Foundation\Auth\User;
+use MattDaneshvar\Survey\Contracts\Answer;
+use MattDaneshvar\Survey\Contracts\Entry as EntryContract;
+use MattDaneshvar\Survey\Contracts\Survey;
 use MattDaneshvar\Survey\Exceptions\GuestEntriesNotAllowedException;
 use MattDaneshvar\Survey\Exceptions\MaxEntriesPerUserLimitExceeded;
 
-class Entry extends Model
+class Entry extends Model implements EntryContract
 {
     /**
      * The attributes that are mass assignable.
@@ -53,7 +56,7 @@ public function __construct(array $attributes = [])
      */
     public function answers()
     {
-        return $this->hasMany(Answer::class);
+        return $this->hasMany(get_class(app()->make(Answer::class)));
     }
 
     /**
@@ -63,7 +66,7 @@ public function answers()
      */
     public function survey()
     {
-        return $this->belongsTo(Survey::class);
+        return $this->belongsTo(get_class(app()->make(Survey::class)));
     }
 
     /**
@@ -115,7 +118,9 @@ public function fromArray(array $values)
                 continue;
             }
 
-            $this->answers->add(Answer::make([
+            $answer_class = get_class(app()->make(Answer::class));
+
+            $this->answers->add($answer_class::make([
                 'question_id' => substr($key, 1),
                 'entry_id' => $this->id,
                 'value' => $value,

src/Models/Question.php

@@ -3,8 +3,12 @@
 namespace MattDaneshvar\Survey\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use MattDaneshvar\Survey\Contracts\Answer;
+use MattDaneshvar\Survey\Contracts\Question as QuestionContract;
+use MattDaneshvar\Survey\Contracts\Section;
+use MattDaneshvar\Survey\Contracts\Survey;
 
-class Question extends Model
+class Question extends Model implements QuestionContract
 {
     /**
      * The attributes that are mass assignable.
@@ -58,7 +62,7 @@ public function __construct(array $attributes = [])
      */
     public function survey()
     {
-        return $this->belongsTo(Survey::class);
+        return $this->belongsTo(get_class(app()->make(Survey::class)));
     }
 
     /**
@@ -68,7 +72,7 @@ public function survey()
      */
     public function section()
     {
-        return $this->belongsTo(Section::class);
+        return $this->belongsTo(get_class(app()->make(Section::class)));
     }
 
     /**
@@ -78,7 +82,7 @@ public function section()
      */
     public function answers()
     {
-        return $this->hasMany(Answer::class);
+        return $this->hasMany(get_class(app()->make(Answer::class)));
     }
 
     /**

src/Models/Section.php

@@ -3,8 +3,10 @@
 namespace MattDaneshvar\Survey\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use MattDaneshvar\Survey\Contracts\Question;
+use MattDaneshvar\Survey\Contracts\Section as SectionContract;
 
-class Section extends Model
+class Section extends Model implements SectionContract
 {
     /**
      * Section constructor.
@@ -34,6 +36,6 @@ public function __construct(array $attributes = [])
      */
     public function questions()
     {
-        return $this->hasMany(Question::class);
+        return $this->hasMany(get_class(app()->make(Question::class)));
     }
 }

src/Models/Survey.php

@@ -3,8 +3,12 @@
 namespace MattDaneshvar\Survey\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use MattDaneshvar\Survey\Contracts\Entry;
+use MattDaneshvar\Survey\Contracts\Question;
+use MattDaneshvar\Survey\Contracts\Section;
+use MattDaneshvar\Survey\Contracts\Survey as SurveyContract;
 
-class Survey extends Model
+class Survey extends Model implements SurveyContract
 {
     /**
      * Survey constructor.
@@ -43,7 +47,7 @@ public function __construct(array $attributes = [])
      */
     public function sections()
     {
-        return $this->hasMany(Section::class);
+        return $this->hasMany(get_class(app()->make(Section::class)));
     }
 
     /**
@@ -53,7 +57,7 @@ public function sections()
      */
     public function questions()
     {
-        return $this->hasMany(Question::class);
+        return $this->hasMany(get_class(app()->make(Question::class)));
     }
 
     /**
@@ -63,7 +67,7 @@ public function questions()
      */
     public function entries()
     {
-        return $this->hasMany(Entry::class);
+        return $this->hasMany(get_class(app()->make(Entry::class)));
     }
 
     /**

src/SurveyServiceProvider.php

@@ -39,6 +39,20 @@ public function boot(ViewFactory $viewFactory)
         ]);
     }
 
+    /**
+     * Register the application services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        $this->app->bind(\MattDaneshvar\Survey\Contracts\Answer::class, \MattDaneshvar\Survey\Models\Answer::class);
+        $this->app->bind(\MattDaneshvar\Survey\Contracts\Entry::class, \MattDaneshvar\Survey\Models\Entry::class);
+        $this->app->bind(\MattDaneshvar\Survey\Contracts\Question::class, \MattDaneshvar\Survey\Models\Question::class);
+        $this->app->bind(\MattDaneshvar\Survey\Contracts\Section::class, \MattDaneshvar\Survey\Models\Section::class);
+        $this->app->bind(\MattDaneshvar\Survey\Contracts\Survey::class, \MattDaneshvar\Survey\Models\Survey::class);
+    }
+
     /**
      * Publish package migrations.
      *