SettingsPage::get_field_value() - Code Metrics - Inspection of "Minor bug & CSS fixes" - amarkal/amarkal-settings - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( b87221...e5fd41 )

by Askupa

created 2017-08-20 20:51 UTC

SettingsPage::get_field_value() A

↳ Parent: SettingsPage

Complexity

Conditions	2
Paths	2

Size

Total Lines	12
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
eloc	6
nc	2
nop	1
dl	0
loc	12
rs	9.4285
c	0
b	0
f	0

<?php

namespace Amarkal\Settings;

/**
 * Implements a settings page.
 */
class SettingsPage
{   

    /**
     * Configuration array 
     * 
     * @var array 
     */
    private $config;
    
    /**
     * The UI form instance
     * 
     * @var Amarkal\UI\Form 
     */
    private $form;

    /**
     * The list of arguments for each section 
     *
     * @var array
     */
    private $sections;

    /**
     * The list of fields for the entire settings page
     *
     * @var Amarkal\UI\ComponentList
     */
    private $fields;
    
    /**
     * Set the config, create a form instance and add actions.
     * 
     * @param array $config
     */
    public function __construct( array $config = array() ) 
    {
        $this->config   = array_merge($this->default_args(), $config);
        $this->fields   = new \Amarkal\UI\ComponentList();

        $this->sections = array();
        $this->form     = new \Amarkal\UI\Form($this->fields);

        
        \add_action('admin_menu', array($this,'add_submenu_page'));
        \add_action('admin_enqueue_scripts', array($this,'enqueue_scripts'));
    }

    /**
     * Add a section to this settings page
     *
     * @param array $args
     * @return void
     */
    public function add_section( array $args )
    {
        $args = \array_merge($this->default_section_args(), $args);
        $slug = $args['slug'];
        if(array_key_exists($slug, $this->sections))
        {
            throw new \RuntimeException("A section with '$slug' has already been created for this page.");  
        }
        $this->sections[$slug] = $args;
    }

    /**
     * Add a settings field to this settings page
     *
     * @param array $args
     * @return void
     */
    public function add_field( array $args )
    {
        $this->fields->add_component($args);
    }

    /**
     * Get the value of the given field from the database, or the default value if none exists
     *
     * @param string $name
     * @return void
     */
    public function get_field_value( $name )
    {
        $old_instance = $this->get_old_instance();

        if(\array_key_exists($name, $old_instance))
        {
            return $old_instance[$name];
        }
        
        $component = $this->get_component($name);
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();
        return $component->default;
    }
    
    /**
     * Internally used to add a submenu page for this settings page
     */
    public function add_submenu_page()
    {
        \add_submenu_page(
            $this->config['parent_slug'], 
            $this->config['title'], 
            $this->config['menu_title'], 
            $this->config['capability'],
            $this->config['slug'],
            array($this, 'render')
        );
    }
    
    /**
     * Conditionally enqueue settings scripts and styles if the calling page is
     * a settings page.
     */
    public function enqueue_scripts()
    {
        // Only enqueue styles & scripts if this is a settings page
        if($this->config['slug'] === filter_input(INPUT_GET, 'page'))
        {
            \wp_enqueue_style('amarkal-settings');
            \wp_enqueue_script('amarkal-settings');
        }
    }
    
    /**
     * Render the settings page
     */
    public function render()
    {
        $this->form->update($this->get_old_instance());
        include __DIR__.'/SettingsPage.phtml';
        \add_filter('admin_footer_text', array($this, 'footer_credits'));
    }
    
    /**
     * Ajax callback internally used to update options values for the given 
     * settings page.
     * 
     * @param array $new_instance
     * @return array
     */
    public function update( $new_instance )

    {
        if($this->can_update())
        {
            $old_instance = $this->get_old_instance();
            $final_instance = $this->form->update($new_instance, $old_instance);
            
            \update_option($this->config['slug'],$final_instance);

            return $this->results_array(
                $this->get_errors(),
                $final_instance
            );
        }
        return $this->results_array(
            array("You don't have permission to manage options on this site")
        );
    }
    
    /**
     * Ajax callback internally used to reset all component values to their 
     * defaults for the given settings page.
     * 
     * @return type
     */
    public function reset()
    {
        if($this->can_update())
        {
            \delete_option($this->config['slug']);

            return $this->results_array(
                array(),
                $this->form->reset()
            );
        }
        return $this->results_array(
            array("You don't have permission to manage options on this site")
        );
    }

    /**
     * Ajax callback internally used to reset all component values to their 
     * defaults for the given settings section.
     *
     * @param string $slug
     * @return void
     */
    public function reset_section( $slug ) 

    {
        if($this->can_update())
        {
            $old_instance = $this->get_old_instance();
            $final_instance = $this->form->reset_components($this->get_section_fields($slug));
            
            \update_option($this->config['slug'], 
                // Array merge is needed in order not to delete fields from other sections
                // since the $final_instance only contains the fields that were reset
                array_merge($old_instance, $final_instance)
            );

            return $this->results_array(
                array(),
                $final_instance
            );
        }
        return $this->results_array(
            array("You don't have permission to manage options on this site")
        );
    }
    
    /**
     * Renders Amarkal's credits on the page's footer.
     */
    public function footer_credits()
    {
        echo '<span id="footer-thankyou">Created with <a href="https://github.com/askupasoftware/amarkal-settings">amarkal-settings</a>, a module within the <a href="https://github.com/askupasoftware/amarkal">Amarkal Framework</a></span>';
    }

    /**
     * Get the component corresponding to the given name
     *
     * @param [string] $name

     * @throws RuntimeException when the component cannot be found
     * @return void
     */
    public function get_component($name)
    {
        return $this->form->get_component_list()->get_by_name($name);
    }

    /**
     * Get all the fields for the given section
     *
     * @param string $slug
     * @return array
     */
    private function get_section_fields($slug)
    {
        $fields = array();
        foreach($this->fields->get_all() as $c)
        {
            if($c->section === $slug)
            {
                $fields[] = $c;
            }
        }
        return $fields;
    }
    
    /**
     * Get all errors from the form instance.
     * 
     * @return array
     */
    private function get_errors()
    {
        $errors = array();
        foreach($this->form->get_errors() as $name => $error)
        {
            $errors[$name] = $error;
        }
        return $errors;
    }
    
    /**
     * Generates a results array to be returned when an Ajax request is made.
     * 
     * @param array $errors The list of errors
     * @param array $values The list of values
     * @return array
     */
    private function results_array( $errors = array(), $values = '' )
    {
        return array(
            'values' => $values,
            'errors' => $errors
        );
    }
    
    /**
     * Check if the current user has the required privileges to update the 
     * settings values.
     * 
     * @return boolean
     */
    private function can_update()
    {
        return \current_user_can($this->config['capability']);
    }
    
    /**
     * Get the old instance from the database.
     * 
     * @return array
     */
    private function get_old_instance()
    {
        return \get_option($this->config['slug'], array());
    }
    
    /**
     * The default config arguments array for a page.
     * 
     * @return array
     */
    private function default_args()
    {
        return array(
            'parent_slug'    => '',
            'slug'           => '',
            'title'          => '',
            'subtitle'       => '',
            'menu_title'     => '',
            'capability'     => 'manage_options',
            'footer_html'    => '',
            'subfooter_html' => ''
        );
    }

    /**
     * The default config arguments array for a section.
     *
     * @return void
     */
    private function default_section_args()
    {
        return array(
            'slug'           => '',
            'title'          => '',
            'subtitle'       => ''
        );
    }
}

1		<?php
2
3		namespace Amarkal\Settings;
4
5		/**
6		* Implements a settings page.
7		*/
8		class SettingsPage
9		{
		0 ignored issues – show Coding Style introduced 2017-08-18 16:12 UTC by Report Bug Copy Issue Report The opening class brace should be on a newline by itself. Loading history...
10		/**
11		* Configuration array
12		*
13		* @var array
14		*/
15		private $config;
16
17		/**
18		* The UI form instance
19		*
20		* @var Amarkal\UI\Form
21		*/
22		private $form;
23
24		/**
25		* The list of arguments for each section
26		*
27		* @var array
28		*/
29		private $sections;
30
31		/**
32		* The list of fields for the entire settings page
33		*
34		* @var Amarkal\UI\ComponentList
35		*/
36		private $fields;
37
38		/**
39		* Set the config, create a form instance and add actions.
40		*
41		* @param array $config
42		*/
43		public function __construct( array $config = array() )
44		{
45		$this->config = array_merge($this->default_args(), $config);
46		$this->fields = new \Amarkal\UI\ComponentList();
		0 ignored issues – show Documentation Bug introduced 2017-08-18 16:12 UTC by Report Bug Copy Issue Report It seems like `new \Amarkal\UI\ComponentList()` of type `object<Amarkal\UI\ComponentList>` is incompatible with the declared type `object<Amarkal\Settings\Amarkal\UI\ComponentList>` of property `$fields`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
47		$this->sections = array();
48		$this->form = new \Amarkal\UI\Form($this->fields);
		0 ignored issues – show Documentation Bug introduced 2017-08-18 16:12 UTC by Report Bug Copy Issue Report It seems like `new \Amarkal\UI\Form($this->fields)` of type `object<Amarkal\UI\Form>` is incompatible with the declared type `object<Amarkal\Settings\Amarkal\UI\Form>` of property `$form`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
49
50		\add_action('admin_menu', array($this,'add_submenu_page'));
51		\add_action('admin_enqueue_scripts', array($this,'enqueue_scripts'));
52		}
53
54		/**
55		* Add a section to this settings page
56		*
57		* @param array $args
58		* @return void
59		*/
60		public function add_section( array $args )
61		{
62		$args = \array_merge($this->default_section_args(), $args);
63		$slug = $args['slug'];
64		if(array_key_exists($slug, $this->sections))
65		{
66		throw new \RuntimeException("A section with '$slug' has already been created for this page.");
67		}
68		$this->sections[$slug] = $args;
69		}
70
71		/**
72		* Add a settings field to this settings page
73		*
74		* @param array $args
75		* @return void
76		*/
77		public function add_field( array $args )
78		{
79		$this->fields->add_component($args);
80		}
81
82		/**
83		* Get the value of the given field from the database, or the default value if none exists
84		*
85		* @param string $name
86		* @return void
87		*/
88		public function get_field_value( $name )
89		{
90		$old_instance = $this->get_old_instance();
91
92		if(\array_key_exists($name, $old_instance))
93		{
94		return $old_instance[$name];
95		}
96
97		$component = $this->get_component($name);
		0 ignored issues – show Bug introduced 2017-08-20 20:52 UTC by Report Bug Copy Issue Report Are you sure the assignment to `$component` is correct as `$this->get_component($name)` (which targets `Amarkal\Settings\SettingsPage::get_component()`) seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); The method `getObject()` can return nothing but null, so it makes no sense to assign that value to a variable. The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes. Loading history...
98		return $component->default;
99		}
100
101		/**
102		* Internally used to add a submenu page for this settings page
103		*/
104		public function add_submenu_page()
105		{
106		\add_submenu_page(
107		$this->config['parent_slug'],
108		$this->config['title'],
109		$this->config['menu_title'],
110		$this->config['capability'],
111		$this->config['slug'],
112		array($this, 'render')
113		);
114		}
115
116		/**
117		* Conditionally enqueue settings scripts and styles if the calling page is
118		* a settings page.
119		*/
120		public function enqueue_scripts()
121		{
122		// Only enqueue styles & scripts if this is a settings page
123		if($this->config['slug'] === filter_input(INPUT_GET, 'page'))
124		{
125		\wp_enqueue_style('amarkal-settings');
126		\wp_enqueue_script('amarkal-settings');
127		}
128		}
129
130		/**
131		* Render the settings page
132		*/
133		public function render()
134		{
135		$this->form->update($this->get_old_instance());
136		include __DIR__.'/SettingsPage.phtml';
137		\add_filter('admin_footer_text', array($this, 'footer_credits'));
138		}
139
140		/**
141		* Ajax callback internally used to update options values for the given
142		* settings page.
143		*
144		* @param array $new_instance
145		* @return array
146		*/
147	View Code Duplication	public function update( $new_instance )
		0 ignored issues – show Duplication introduced 2017-08-18 16:12 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
148		{
149		if($this->can_update())
150		{
151		$old_instance = $this->get_old_instance();
152		$final_instance = $this->form->update($new_instance, $old_instance);
153
154		\update_option($this->config['slug'],$final_instance);
155
156		return $this->results_array(
157		$this->get_errors(),
158		$final_instance
159		);
160		}
161		return $this->results_array(
162		array("You don't have permission to manage options on this site")
163		);
164		}
165
166		/**
167		* Ajax callback internally used to reset all component values to their
168		* defaults for the given settings page.
169		*
170		* @return type
171		*/
172		public function reset()
173		{
174		if($this->can_update())
175		{
176		\delete_option($this->config['slug']);
177
178		return $this->results_array(
179		array(),
180		$this->form->reset()
181		);
182		}
183		return $this->results_array(
184		array("You don't have permission to manage options on this site")
185		);
186		}
187
188		/**
189		* Ajax callback internally used to reset all component values to their
190		* defaults for the given settings section.
191		*
192		* @param string $slug
193		* @return void
194		*/
195	View Code Duplication	public function reset_section( $slug )
		0 ignored issues – show Duplication introduced 2017-08-18 16:12 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
196		{
197		if($this->can_update())
198		{
199		$old_instance = $this->get_old_instance();
200		$final_instance = $this->form->reset_components($this->get_section_fields($slug));
201
202		\update_option($this->config['slug'],
203		// Array merge is needed in order not to delete fields from other sections
204		// since the $final_instance only contains the fields that were reset
205		array_merge($old_instance, $final_instance)
206		);
207
208		return $this->results_array(
209		array(),
210		$final_instance
211		);
212		}
213		return $this->results_array(
214		array("You don't have permission to manage options on this site")
215		);
216		}
217
218		/**
219		* Renders Amarkal's credits on the page's footer.
220		*/
221		public function footer_credits()
222		{
223		echo '<span id="footer-thankyou">Created with <a href="https://github.com/askupasoftware/amarkal-settings">amarkal-settings</a>, a module within the <a href="https://github.com/askupasoftware/amarkal">Amarkal Framework</a></span>';
224		}
225
226		/**
227		* Get the component corresponding to the given name
228		*
229		* @param [string] $name
		0 ignored issues – show Documentation introduced 2017-07-16 17:05 UTC by Report Bug Copy Issue Report The doc-type `[string]` could not be parsed: Unknown type name "" at position 0. [(view supported doc-types) This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types. Loading history...
230		* @throws RuntimeException when the component cannot be found
231		* @return void
232		*/
233		public function get_component($name)
234		{
235		return $this->form->get_component_list()->get_by_name($name);
236		}
237
238		/**
239		* Get all the fields for the given section
240		*
241		* @param string $slug
242		* @return array
243		*/
244		private function get_section_fields($slug)
245		{
246		$fields = array();
247		foreach($this->fields->get_all() as $c)
248		{
249		if($c->section === $slug)
250		{
251		$fields[] = $c;
252		}
253		}
254		return $fields;
255		}
256
257		/**
258		* Get all errors from the form instance.
259		*
260		* @return array
261		*/
262		private function get_errors()
263		{
264		$errors = array();
265		foreach($this->form->get_errors() as $name => $error)
266		{
267		$errors[$name] = $error;
268		}
269		return $errors;
270		}
271
272		/**
273		* Generates a results array to be returned when an Ajax request is made.
274		*
275		* @param array $errors The list of errors
276		* @param array $values The list of values
277		* @return array
278		*/
279		private function results_array( $errors = array(), $values = '' )
280		{
281		return array(
282		'values' => $values,
283		'errors' => $errors
284		);
285		}
286
287		/**
288		* Check if the current user has the required privileges to update the
289		* settings values.
290		*
291		* @return boolean
292		*/
293		private function can_update()
294		{
295		return \current_user_can($this->config['capability']);
296		}
297
298		/**
299		* Get the old instance from the database.
300		*
301		* @return array
302		*/
303		private function get_old_instance()
304		{
305		return \get_option($this->config['slug'], array());
306		}
307
308		/**
309		* The default config arguments array for a page.
310		*
311		* @return array
312		*/
313		private function default_args()
314		{
315		return array(
316		'parent_slug' => '',
317		'slug' => '',
318		'title' => '',
319		'subtitle' => '',
320		'menu_title' => '',
321		'capability' => 'manage_options',
322		'footer_html' => '',
323		'subfooter_html' => ''
324		);
325		}
326
327		/**
328		* The default config arguments array for a section.
329		*
330		* @return void
331		*/
332		private function default_section_args()
333		{
334		return array(
335		'slug' => '',
336		'title' => '',
337		'subtitle' => ''
338		);
339		}
340		}

amarkal / amarkal-settings

Push — master ( b87221...e5fd41 )

SettingsPage::get_field_value() A

Complexity

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Duplication

Importance

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