Filter definition. (#310)

* Return repository key on filters.

* Apply fixes from StyleCI (#307)

* Adding filter definition.

* Apply fixes from StyleCI (#308)

* docs

* Map into qualified classes.

* Apply fixes from StyleCI (#309)

* wip

docs/docs/4.0/search/search.md

@@ -154,6 +154,38 @@ So now you can query this:
 GET: /api/restify/users?is_active=true
 ```
 
+### Match definition
+
+You can implement a match filter definition, and specify for example related repository:
+
+```php
+  public static $match = [
+        'title' => 'string',
+        'user_id' => MatchFilter::make()
+            ->setType('int')
+            ->setRelatedRepositoryKey(UserRepository::uriKey()),
+];
+```
+When you will list this filter (with `posts/filters?only=matches`), you will get: 
+
+```json
+  {
+      "class": "Binaryk\LaravelRestify\Filters\MatchFilter"
+      "key": "matches"
+      "type": "string"
+      "column": "title"
+      "options": []
+    },
+    {
+      "class": "Binaryk\LaravelRestify\Filters\MatchFilter"
+      "key": "matches"
+      "type": "int"
+      "column": "user_id"
+      "options": []
+      "related_repository_key": "users"
+      "related_repository_url": "//users"
+    }
+```
 ## Sort 
 When index query entities, usually we have to sort by specific attributes. 
 

src/Commands/FilterCommand.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Binaryk\LaravelRestify\Commands;
+
+use Illuminate\Console\ConfirmableTrait;
+use Illuminate\Console\GeneratorCommand;
+use Illuminate\Support\Str;
+
+class FilterCommand extends GeneratorCommand
+{
+    use ConfirmableTrait;
+
+    protected $name = 'restify:filter';
+
+    protected $description = 'Create a new filter class';
+
+    protected $type = 'Filter';
+
+    public function handle()
+    {
+        if (parent::handle() === false && ! $this->option('force')) {
+            return false;
+        }
+    }
+
+    /**
+     * Build the class with the given name.
+     * This method should return the file class content.
+     *
+     * @param string $name
+     * @return string
+     * @throws \Illuminate\Contracts\Filesystem\FileNotFoundException
+     */
+    protected function buildClass($name)
+    {
+        if (false === Str::endsWith($name, 'Filter')) {
+            $name .= 'Filter';
+        }
+
+        return tap(parent::buildClass($name), function ($stub) use ($name) {
+            return str_replace(['{{ attribute }}', '{{ query }}'], Str::snake(
+                Str::beforeLast(class_basename($name), 'Filter')
+            ), $stub);
+        });
+    }
+
+    protected function getStub()
+    {
+        return __DIR__.'/stubs/filter.stub';
+    }
+
+    protected function getPath($name)
+    {
+        if (false === Str::endsWith($name, 'Filter')) {
+            $name .= 'Filter';
+        }
+
+        return parent::getPath($name);
+    }
+
+    protected function getDefaultNamespace($rootNamespace)
+    {
+        return $rootNamespace.'\Restify\Matchers';
+    }
+}

src/Commands/stubs/filter.stub

@@ -0,0 +1,14 @@
+<?php
+
+namespace DummyNamespace;
+
+use Binaryk\LaravelRestify\Filter;
+use Binaryk\LaravelRestify\Http\Requests\RestifyRequest;
+
+class DummyClass extends Filter
+{
+    public function filter(RestifyRequest $request, $query, $value)
+    {
+        // $query->where('{{ attribute }}', $request->input('{{ query }}'));
+    }
+}

src/Filter.php

@@ -3,6 +3,7 @@
 namespace Binaryk\LaravelRestify;
 
 use Binaryk\LaravelRestify\Http\Requests\RestifyRequest;
+use Binaryk\LaravelRestify\Repositories\Repository;
 use Binaryk\LaravelRestify\Traits\Make;
 use Closure;
 use Illuminate\Http\Request;
@@ -15,12 +16,18 @@ abstract class Filter implements JsonSerializable
 
     public $type = 'value';
 
+    public $column;
+
     public $value;
 
     public $canSeeCallback;
 
     public static $uriKey;
 
+    public $relatedRepositoryKey;
+
+    public Repository $repository;
+
     public function __construct()
     {
         $this->booted();
@@ -55,6 +62,25 @@ protected function getType()
         return $this->type;
     }
 
+    public function getColumn(): ?string
+    {
+        return $this->column;
+    }
+
+    public function setColumn(string $column): self
+    {
+        $this->column = $column;
+
+        return $this;
+    }
+
+    public function setType(string $type): self
+    {
+        $this->type = $type;
+
+        return $this;
+    }
+
     public function options(Request $request)
     {
         // noop
@@ -76,6 +102,36 @@ public function resolve(RestifyRequest $request, $filter)
         $this->value = $filter;
     }
 
+    public function getRelatedRepositoryKey(): ?string
+    {
+        return $this->relatedRepositoryKey;
+    }
+
+    public function setRelatedRepositoryKey(string $repositoryKey): self
+    {
+        $this->relatedRepositoryKey = $repositoryKey;
+
+        return $this;
+    }
+
+    public function setRepository(Repository $repository): self
+    {
+        $this->repository = $repository;
+
+        return $this;
+    }
+
+    public function getRelatedRepositoryUrl(): ?string
+    {
+        return ($key = $this->getRelatedRepositoryKey())
+            ? with(Restify::repositoryForKey($key), function ($repository = null) {
+                if (is_subclass_of($repository, Repository::class)) {
+                    return Restify::path($repository::uriKey());
+                }
+            })
+            : null;
+    }
+
     /**
      * Get the URI key for the filter.
      *
@@ -87,24 +143,28 @@ public static function uriKey()
             return static::$uriKey;
         }
 
-        $kebabWithoutRepository = Str::kebab(Str::replaceLast('Filter', '', class_basename(get_called_class())));
+        $kebabWithoutFilter = Str::kebab(Str::replaceLast('Filter', '', class_basename(get_called_class())));
 
-        /**
-         * e.g. UserRepository => users
-         * e.g. LaravelEntityRepository => laravel-entities.
-         */
-        return Str::plural($kebabWithoutRepository);
+        return Str::plural($kebabWithoutFilter);
     }
 
     public function jsonSerialize()
     {
-        return [
+        return with([
             'class' => static::class,
             'key' => static::uriKey(),
             'type' => $this->getType(),
+            'column' => $this->getColumn(),
             'options' => collect($this->options(app(Request::class)))->map(function ($value, $key) {
                 return is_array($value) ? ($value + ['property' => $key]) : ['label' => $key, 'property' => $value];
             })->values()->all(),
-        ];
+        ], function (array $initial) {
+            return $this->relatedRepositoryKey
+                ? array_merge($initial, [
+                    'related_repository_key' => $this->getRelatedRepositoryKey(),
+                    'related_repository_url' => $this->getRelatedRepositoryUrl(),
+                ])
+                : $initial;
+        });
     }
 }

src/Filters/FilterDefinition.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace Binaryk\LaravelRestify\Filters;
+
+use Binaryk\LaravelRestify\Repositories\Repository;
+use Binaryk\LaravelRestify\Restify;
+use JsonSerializable;
+
+abstract class FilterDefinition implements JsonSerializable
+{
+    public static string $type = 'string';
+
+    public static string $relatedRepositoryKey;
+
+    public function getType(): string
+    {
+        return static::$type;
+    }
+
+    public function getRelatedRepositoryKey(): ?string
+    {
+        return static::$relatedRepositoryKey;
+    }
+
+    public function getRelatedRepositoryUrl(): ?string
+    {
+        return ($key = $this->getRelatedRepositoryKey())
+            ? with(Restify::repositoryForKey($key), function ($repository = null) {
+                if (is_subclass_of($repository, Repository::class)) {
+                    return Restify::path($repository::uriKey());
+                }
+            })
+            : null;
+    }
+
+    public function jsonSerialize()
+    {
+        return with([
+            'type' => $this->getType(),
+        ], function (array $initial) {
+            return static::$relatedRepositoryKey
+                ? array_merge($initial, [
+                    'related_repository_key' => $this->getRelatedRepositoryKey(),
+                    'related_repository_url' => $this->getRelatedRepositoryUrl(),
+                ])
+                : $initial;
+        });
+    }
+}