- laravel framework upgrade frpm 7.x to 8. see also: https://laravel.com/docs/8.x/upgrade#assert-exact-json-method

- use  PHP7 null coalesce operator instead of laravel optional method
- change Breadcrumbs::register method to Bredcrumbs::for method
- composer updates

app/Models/Collection.php

@@ -3,10 +3,13 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use App\Models\Dataset;
 
 class Collection extends Model
 {
+    use HasFactory;
+
     public $timestamps = false;
     //mass assignable
     protected $fillable = [

app/Models/CollectionRole.php

@@ -3,11 +3,14 @@
 namespace App\Models;
 
 use App\Models\Collection;
-use App\Models\Dataset;
+// use App\Models\Dataset;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class CollectionRole extends Model
 {
+    use HasFactory;
+    
     protected $table = 'collections_roles';
     public $timestamps = false;
     protected $fillable = [

app/Models/Coverage.php

@@ -2,11 +2,13 @@
 namespace App\Models;
 
 use App\Models\Dataset;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use DateTimeInterface;
 
 class Coverage extends Model
 {
+    use HasFactory;
     protected $table = 'coverage';
     public $timestamps = true;
     protected $dateFormat = 'Y-m-d H:i:s';

app/Models/Dataset.php

@@ -2,6 +2,7 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use App\Library\Xml\DatasetExtension;
 use App\Models\Collection;
 use App\Models\Coverage;
@@ -20,7 +21,7 @@ use Illuminate\Database\Eloquent\Model;
 
 class Dataset extends Model
 {
-    use DatasetExtension;
+    use DatasetExtension, HasFactory;
     protected $table = 'documents';
 
     //public $timestamps = false; //default true

app/Models/DatasetIdentifier.php

@@ -3,9 +3,11 @@ namespace App\Models;
 
 use App\Models\Dataset;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class DatasetIdentifier extends Model
 {
+    use HasFactory;
     protected $table = 'dataset_identifiers';
     protected $guarded = array();
     public $timestamps = true;

app/Models/DatasetReference.php

@@ -4,9 +4,11 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use App\Models\Dataset;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class DatasetReference extends Model
 {
+    use HasFactory;
     protected $table = 'document_references';
     public $timestamps = false;
 

app/Models/Description.php

@@ -3,9 +3,11 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use App\Models\Dataset;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Description extends Model
 {
+    use HasFactory;
     protected $table = 'dataset_abstracts';
     public $timestamps = false;
     

app/Models/File.php

@@ -5,9 +5,11 @@ namespace App\Models;
 use App\Models\Dataset;
 use App\Models\HashValue;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class File extends Model
 {
+    use HasFactory;
     protected $table = 'document_files';
     public $timestamps = true;
 

app/Models/GeolocationBox.php

@@ -3,9 +3,11 @@ namespace App\Models;
 
 use App\Models\Dataset;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class GeolocationBox extends Model
 {
+    use HasFactory;
     protected $table = 'geolocation_box';
     public $timestamps = false;
 

app/Models/HashValue.php

@@ -4,9 +4,11 @@ namespace App\Models;
 
 use App\Models\File;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class HashValue extends Model
 {
+    use HasFactory;
     protected $table = 'file_hashvalues';
     public $timestamps = false;
 

app/Models/Language.php

@@ -2,10 +2,11 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Language extends Model
 {
-
+    use HasFactory;
     //protected $table = 'languages';
     public $timestamps = false;
 

app/Models/License.php

@@ -3,9 +3,11 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use App\Models\Dataset;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class License extends Model
 {
+    use HasFactory;
     protected $table = 'document_licences';
     public $timestamps = false;
 

app/Models/Message.php

@@ -3,8 +3,9 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Message extends Model
 {
-    //
+    use HasFactory;
 }

app/Models/MimeType.php

@@ -2,10 +2,11 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class MimeType extends Model
 {
-
+    use HasFactory;
     protected $table = 'mime_types';
 
     // for using $input = $request->all();

app/Models/Page.php

@@ -8,9 +8,11 @@ use App\Models\User;
 use Illuminate\Database\Eloquent\Model;
 use Astrotomic\Translatable\Contracts\Translatable as TranslatableContract;
 use Astrotomic\Translatable\Translatable;// use Dimsav\Translatable\Translatable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Page extends Model implements TranslatableContract
 {
+    use HasFactory;
     use ModelTrait;
     use Translatable; // 2. To add translation methods
    

app/Models/PageTranslation.php

@@ -3,9 +3,11 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class PageTranslation extends Model
 {
+    Use HasFactory;
     public $timestamps = false;
     protected $fillable = ['title', 'description'];
     protected $guarded = ['id'];

app/Models/Person.php

@@ -4,9 +4,11 @@ namespace App\Models;
 
 use App\Models\Dataset;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Person extends Model
 {
+    use HasFactory;
     protected $fillable = [
         'academic_title',
         'date_of_birth',

app/Models/Project.php

@@ -3,10 +3,11 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use App\Models\Dataset;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Project extends Model
 {
-
+    use HasFactory;
     //protected $table = 'projects';
 
     // for using $input = $request->all();

app/Models/Role.php

@@ -3,9 +3,11 @@
 namespace App\Models;
 
 use Zizaco\Entrust\EntrustRole;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Role extends EntrustRole
 {
+    use HasFactory;
     /**
      * The attributes that are mass assignable.
      *

app/Models/Subject.php

@@ -4,9 +4,11 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use App\Models\Dataset;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Subject extends Model
 {
+    Use HasFactory;
     // protected $table = 'document_subjects';
     protected $table = 'dataset_subjects';
     public $timestamps = false;

app/Models/Title.php

@@ -3,9 +3,11 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
 use App\Models\Dataset;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 
 class Title extends Model
 {
+    use HasFactory;
     protected $table = 'dataset_titles';
     public $timestamps = false;
     

app/Models/User.php

@@ -1,9 +1,11 @@
 <?php
+
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Model;
-use Illuminate\Notifications\Notifiable;
+// use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Foundation\Auth\User as Authenticatable;
+use Illuminate\Notifications\Notifiable;
 use Zizaco\Entrust\Traits\EntrustUserTrait;
 use Illuminate\Support\Facades\Hash;
 use Illuminate\Support\Collection;
@@ -12,7 +14,7 @@ use App\Models\Dataset;
 class User extends Authenticatable
 {
     // use Authenticatable, CanResetPassword, Authorizable;
-    use Notifiable;
+    use HasFactory, Notifiable;
 
     // use HasRoles;
     use EntrustUserTrait;