DataGrid - Code Metrics - Inspection of "Row conditions" - ublaboo/datagrid - Measure and Improve Code Quality continuously with Scrutinizer

Completed
Push — master ( a21e1b...e6e660 )

by Pavel
created 2016-02-02 21:41 UTC
DataGrid F

↳ Parent: Project
Complexity

Total Complexity
191
Size/Duplication

Total Lines	1632
Duplicated Lines	3.86 %
Coupling/Cohesion

Components	2
Dependencies	35
Importance

Changes	40
Bugs	6	Features	5
Metric	Value
wmc	191
c	40
b	6
f	5
lcom	2
cbo	35
dl	63
loc	1632
rs	0.5217
81 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
A	attached()	0	16	2
A	getSessionSectionName()	0	4	1
B	render()	0	68	6
A	getPaginator()	0	8	3
A	setPrimaryKey()	0	6	1
D	setDataSource()	0	36	9
A	isFilterActive()	0	6	2
A	setFilterActive()	0	6	1
A	setFilter()	0	6	1
A	setItemsPerPageList()	0	6	1
A	setTemplateFile()	0	6	1
A	getTemplateFile()	0	4	2
A	getOriginalTemplateFile()	0	4	1
A	setPagination()	0	6	1
A	isPaginated()	0	4	1
A	setSortable()	0	10	2
A	isSortable()	0	4	1
A	isTreeView()	0	4	1
B	setTreeView()	0	25	3
A	addColumnText()	0	7	2
A	addColumnLink()	0	12	4
A	addColumnNumber()	0	7	2
A	addColumnDateTime()	0	7	2
A	getColumn()	0	8	2
A	removeColumn()	0	4	1
A	addColumnCheck()	0	6	2
A	addAction()	0	11	3
A	getAction()	0	8	2
A	removeAction()	0	4	1
A	addActionCheck()	0	6	2
A	addFilterText()	0	12	4
A	addFilterSelect()	12	12	3
A	addFilterDate()	0	12	3
A	addFilterRange()	12	12	3
A	addFilterDateRange()	12	12	3
A	addFilterCheck()	0	6	2
D	assableFilters()	0	28	10
C	findSessionFilters()	0	28	11
A	removeFilter()	0	4	1
A	addExportCallback()	0	8	2
A	addExportCsv()	0	4	1
A	addExportCsvFiltered()	0	4	1
A	addToExports()	0	8	2
A	addGroupAction()	0	4	1
A	getGroupActionCollection()	0	8	2
A	handlePage()	0	10	1
A	handleSort()	0	10	1
B	handleResetFilter()	0	22	5
B	handleExport()	0	30	5
A	handleGetChildren()	15	15	2
A	handleGetItemDetail()	12	12	2
A	handleEdit()	0	7	1
A	reload()	0	21	3
A	redrawItem()	0	7	2
A	createComponentPaginator()	0	13	1
B	createComponentPerPage()	0	26	1
B	createComponentFilter()	0	30	3
B	filterSucceeded()	0	26	5
A	resetExportsLinks()	0	6	2
A	getPerPage()	0	10	4
A	getItemsPerPageList()	0	12	2
A	getPrimaryKey()	0	4	1
A	getColumns()	0	4	1
A	hasGroupActions()	0	4	1
A	getTranslator()	0	8	2
A	setTranslator()	0	6	1
A	setOuterFilterRendering()	0	4	1
A	hasOuterFilterRendering()	0	4	1
A	setColumnsOrder()	0	16	4
A	setRememberState()	0	4	1
A	setRefreshUrl()	0	4	1
A	getSessionData()	0	8	3
A	saveSessionData()	0	7	2
A	deleteSesssionData()	0	4	1
A	getItemsDetail()	0	4	1
B	setItemsDetail()	0	39	6
B	getColumnsCount()	0	14	5
A	allowRowsGroupAction()	0	4	1
A	allowRowsAction()	0	4	1
A	getRowCondition()	0	14	4
How to fix Duplicated Code Complexity

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
If you have the same expression in different places: Extract expression to a method
If you have the same method in different sub-classes: Extract method, and pull up field to the parent class
If you have the same code in unrelated classes: Consider extracting the code to a new class, and injecting that class
Complex Class

Tip: Before tackling complexity, make sure that you eliminate any duplication first. This often can reduce the size of classes significantly.
Complex classes like DataGrid often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use DataGrid, and based on these observations, apply Extract Interface, too.
<?php

/**
 * @copyright   Copyright (c) 2015 ublaboo <[email protected]>
 * @author      Pavel Janda <[email protected]>
 * @package     Ublaboo
 */

namespace Ublaboo\DataGrid;

use Nette;
use Ublaboo\DataGrid\Utils\ArraysHelper;
use Nette\Application\UI\Form;

class DataGrid extends Nette\Application\UI\Control
{

	/**
	 * @var string
	 * @todo Tell about this on github
	 */
	public static $icon_prefix = 'fa fa-';

	/**
	 * @var int
	 * @persistent
	 */
	public $page = 1;

	/**
	 * @var int
	 * @persistent
	 */
	public $per_page;

	/**
	 * @var array
	 * @persistent
	 */
	public $sort = [];

	/**
	 * @var array
	 * @persistent
	 */
	public $filter = [];

	/**
	 * @var Callable[]
	 */
	public $onRender = [];

	/**
	 * @var array
	 */
	protected $items_per_page_list = [10, 20, 50];

	/**
	 * @var string
	 */
	protected $template_file;

	/**
	 * @var Column\IColumn[]
	 */
	protected $columns = [];

	/**
	 * @var Column\Action[]
	 */
	protected $actions = [];

	/**
	 * @var GroupAction\GroupActionCollection
	 */
	protected $group_action_collection;

	/**
	 * @var Filter\Filter[]
	 */
	protected $filters = [];

	/**
	 * @var Export\Export[]
	 */
	protected $exports = [];

	/**
	 * @var DataModel
	 */
	protected $dataModel;

	/**
	 * @var DataFilter
	 */
	protected $dataFilter;

	/**
	 * @var string
	 */
	protected $primary_key = 'id';

	/**
	 * @var bool
	 */
	protected $do_paginate = TRUE;

	/**
	 * @var bool
	 */
	protected $csv_export = TRUE;

	/**
	 * @var bool
	 */
	protected $csv_export_filtered = TRUE;

	/**
	 * @var bool
	 */
	protected $sortable = FALSE;

	/**
	 * @var string
	 */
	protected $original_template;

	/**
	 * @var array
	 */
	protected $redraw_item;

	/**
	 * @var mixed
	 */
	protected $translator;

	/**
	 * @var bool
	 */
	protected $force_filter_active;

	/**
	 * @var callable
	 */
	protected $tree_view_children_callback;

	/**
	 * @var string
	 */
	protected $tree_view_has_children_column;

	/**
	 * @var bool
	 */
	protected $outer_filter_rendering = FALSE;

	/**
	 * @var bool
	 */
	private $remember_state = TRUE;

	/**
	 * @var bool
	 */
	private $refresh_url = TRUE;

	/**
	 * @var Nette\Http\SessionSection
	 */
	private $grid_session;

	/**
	 * @var array
	 */
	private $items_detail = [];

	/**
	 * @var array
	 */
	private $row_conditions = [
		'group_action' => FALSE,
		'action' => []
	];


	/**
	 * @param Nette\ComponentModel\IContainer|NULL $parent
	 * @param string                               $name
	 */
	public function __construct(Nette\ComponentModel\IContainer $parent = NULL, $name = NULL)
	{
		parent::__construct($parent, $name);

		$this->monitor('Nette\Application\UI\Presenter');
	}


	/**
	 * {inheritDoc}
	 * @return void
	 */
	public function attached($presenter)
	{
		parent::attached($presenter);

		if ($presenter instanceof Nette\Application\UI\Presenter) {
			/**
			 * Get session
			 */
			$this->grid_session = $this->getPresenter()->getSession($this->getSessionSectionName());
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

			/**
			 * Try to find previous filters/pagination/sort in session
			 */
			$this->findSessionFilters();
		}
	}


	/**
	 * Find some unique session key name
	 * @return string
	 */
	public function getSessionSectionName()
	{
		return $this->getPresenter()->getName().':'.$this->getName();
	}


	/**
	 * Render template
	 * @return void
	 */
	public function render()
	{
		$rows = [];

		/**
		 * Check whether datagrid has set some columns, initiated data source, etc
		 */
		if (!($this->dataModel instanceof DataModel)) {
			throw new DataGridException('You have to set a data source first.');
		}

		if (empty($this->columns)) {
			throw new DataGridException('You have to add at least one column.');
		}

		$this->template->setTranslator($this->getTranslator());
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}

		/**
		 * Invoke some possible events
		 */
		$this->onRender($this);


		/**
		 * Prepare data for rendering (datagrid may render just one item)
		 */
		if (!empty($this->redraw_item)) {
			$items = $this->dataModel->filterRow($this->redraw_item);
		} else {
			$items = Nette\Utils\Callback::invokeArgs(
				[$this->dataModel, 'filterData'],
				[
					$this->getPaginator(),
					$this->sort,
					$this->assableFilters()
				]
			);
		}

		foreach ($items as $item) {
			$rows[] = new Row($this, $item, $this->getPrimaryKey());
		}

		if ($this->isTreeView()) {
			$this->template->tree_view_has_children_column = $this->tree_view_has_children_column;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		}

		$this->template->rows = $rows;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}

		$this->template->columns = $this->columns;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		$this->template->actions = $this->actions;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		$this->template->exports = $this->exports;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		$this->template->filters = $this->filters;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}

		$this->template->filter_active = $this->isFilterActive();
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		$this->template->original_template = $this->getOriginalTemplateFile();
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		$this->template->icon_prefix = static::$icon_prefix;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		$this->template->items_detail = $this->items_detail;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}

		/**
		 * Walkaround for Latte (does not know $form in snippet in {form} etc)
		 */
		$this->template->filter = $this['filter'];
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}

		/**
		 * Set template file and render it
		 */
		$this->template->setFile($this->getTemplateFile())->render();
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
	}


	/**
	 * Return current paginator class
	 * @return NULL|Components\DataGridPaginator\DataGridPaginator
	 */
	public function getPaginator()
	{
		if ($this->isPaginated() && $this->per_page !== 'all') {

			return $this['paginator'];
		}

		return NULL;
	}


	/**
	 * @param string $primary_key
	 */
	public function setPrimaryKey($primary_key)
	{
		$this->primary_key = $primary_key;

		return $this;
	}


	/**
	 * Set Grid data source
	 * @param DataSource\IDataSource|array|\DibiFluent $source
	 * @return DataGrid
	 */
	public function setDataSource($source)
	{
		if ($source instanceof DataSource\IDataSource) {
if (rand(1, 6) > 3) {
//print "Check failed";
} else {
    print "Check succeeded";
}
			// $source is ready for interact

		} else if (is_array($source)) {
			$data_source = new DataSource\ArrayDataSource($source);

		} else if ($source instanceof \DibiFluent) {
if ($x instanceof DoesNotExist) {
    // Do something.
}
			$driver = $source->getConnection()->getDriver();

			if ($driver instanceof \DibiOdbcDriver) {
if ($x instanceof DoesNotExist) {
    // Do something.
}
				$data_source = new DataSource\DibiFluentMssqlDataSource($source, $this->primary_key);

			} else if ($driver instanceof \DibiMsSqlDriver) {
if ($x instanceof DoesNotExist) {
    // Do something.
}
				$data_source = new DataSource\DibiFluentMssqlDataSource($source, $this->primary_key);

			} else {
				$data_source = new DataSource\DibiFluentDataSource($source, $this->primary_key);
			}

		} else if ($source instanceof Nette\Database\Table\Selection) {
if ($x instanceof DoesNotExist) {
    // Do something.
}
			$data_source = new DataSource\NetteDatabaseTableDataSource($source, $this->primary_key);

		} else if ($source instanceof \Kdyby\Doctrine\QueryBuilder) {
if ($x instanceof DoesNotExist) {
    // Do something.
}
			$data_source = new DataSource\DoctrineDataSource($source, $this->primary_key);

		} else {
			$data_source_class = $source ? get_class($source) : 'NULL';
			throw new DataGridException("DataGrid can not take [$data_source_class] as data source.");
		}

		$this->dataModel = new DataModel($data_source);
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

		return $this;
	}


	/**
	 * Is filter active?
	 * @return boolean
	 */
	public function isFilterActive()
	{
		$is_filter = ArraysHelper::testTruthy($this->filter);

		return ($is_filter) || $this->force_filter_active;
	}


	/**
	 * Tell that filter is active from whatever reasons
	 * return self
	 */
	public function setFilterActive()
	{
		$this->force_filter_active = TRUE;

		return $this;
	}


	/**
	 * If we want to sent some initial filter
	 * @param array $filter
	 */
	public function setFilter(array $filter)
	{
		$this->filter = $filter;

		return $this;
	}


	/**
	 * Set options of select "items_per_page"
	 * @param array $items_per_page_list
	 */
	public function setItemsPerPageList(array $items_per_page_list)
	{
		$this->items_per_page_list = $items_per_page_list;

		return $this;
	}


	/**
	 * Set custom template file to render
	 * @param string $template_file
	 */
	public function setTemplateFile($template_file)
	{
		$this->template_file = $template_file;

		return $this;
	}


	/**
	 * Get DataGrid template file
	 * @return string
	 */
	public function getTemplateFile()
	{
		return $this->template_file ?: $this->getOriginalTemplateFile();
	}


	/**
	 * Get DataGrid original template file
	 * @return string
	 */
	public function getOriginalTemplateFile()
	{
		return __DIR__.'/templates/datagrid.latte';
	}


	/**
	 * Order Grid to "be paginated"
	 * @param bool $do
	 */
	public function setPagination($do)
	{
		$this->do_paginate = (bool) $do;

		return $this;
	}


	/**
	 * Tell whether Grid is paginated
	 * @return bool
	 */
	public function isPaginated()
	{
		return $this->do_paginate;
	}


	/**
	 * Set grido to be sortable
	 * @param bool $sortable
	 */
	public function setSortable($sortable = TRUE)
	{
		if ($this->getItemsDetail()) {
			throw new DataGridException('You can not use both sortable datagrid and items detail.');
		}

		$this->sortable = (bool) $sortable;

		return $this;
	}


	/**
	 * Tell whether DataGrid is sortable
	 * @return bool
	 */
	public function isSortable()
	{
		return $this->sortable;
	}


	/**
	 * Is tree view set?
	 * @return boolean
	 */
	public function isTreeView()
	{
		return (bool) $this->tree_view_children_callback;
	}


	/**
	 * Setting tree view
	 * @param callable $get_children_callback
	 * @param string   $tree_view_has_children_column
	 */
	public function setTreeView($get_children_callback, $tree_view_has_children_column = 'has_children')
	{
		if (!is_callable($get_children_callback)) {
			throw new DataGridException(
				'Parameters to method DataGrid::setTreeView must be of type callable'
			);
		}

		$this->tree_view_children_callback = $get_children_callback;
		$this->tree_view_has_children_column = $tree_view_has_children_column;

		/**
		 * TUrn off pagination
		 */
		$this->setPagination(NULL);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);

		/**
		 * Set tree view template file
		 */
		if (!$this->template_file) {
			$this->setTemplateFile(__DIR__.'/templates/datagrid_tree.latte');
		}

		return $this;
	}


	/********************************************************************************
	 *                                    Columns                                   *
	 ********************************************************************************/


	/**
	 * Add text column with no other formating
	 * @param  string      $key
	 * @param  string      $name
	 * @param  string|null $column
	 * @return Column\Column
	 */
	public function addColumnText($key, $name, $column = NULL)
	{
		$this->addColumnCheck($key);
		$column = $column ?: $key;

		return $this->columns[$key] = new Column\ColumnText($column, $name);
	}


	/**
	 * Add column with link
	 * @param  string      $key
	 * @param  string      $name
	 * @param  string|null $column
	 * @return Column\Column
	 */
	public function addColumnLink($key, $name, $href = NULL, $column = NULL, array $params = NULL)
	{
		$this->addColumnCheck($key);
		$column = $column ?: $key;
		$href = $href ?: $key;

		if (NULL === $params) {
			$params = [$this->primary_key];
		}

		return $this->columns[$key] = new Column\ColumnLink($this, $column, $name, $href, $params);
	}


	/**
	 * Add column with possible number formating
	 * @param  string      $key
	 * @param  string      $name
	 * @param  string|null $column
	 * @return Column\Column
	 */
	public function addColumnNumber($key, $name, $column = NULL)
	{
		$this->addColumnCheck($key);
		$column = $column ?: $key;

		return $this->columns[$key] = new Column\ColumnNumber($column, $name);
	}


	/**
	 * Add column with date formating
	 * @param  string      $key
	 * @param  string      $name
	 * @param  string|null $column
	 * @return Column\Column
	 */
	public function addColumnDateTime($key, $name, $column = NULL)
	{
		$this->addColumnCheck($key);
		$column = $column ?: $key;

		return $this->columns[$key] = new Column\ColumnDateTime($column, $name);
	}


	/**
	 * Return existing column
	 * @param  string $key
	 * @return Column\Column
	 * @throws DataGridException
	 */
	public function getColumn($key)
	{
		if (!isset($this->columns[$key])) {
			throw new DataGridException("There is no column at key [$key] defined.");
		}

		return $this->columns[$key];
	}


	/**
	 * Remove column
	 * @param string $key
	 * @return void
	 */
	public function removeColumn($key)
	{
		unset($this->columns[$key]);
	}


	/**
	 * Check whether given key already exists in $this->columns
	 * @param  string $key
	 * @throws DataGridException
	 */
	protected function addColumnCheck($key)
	{
		if (isset($this->columns[$key])) {
			throw new DataGridException("There is already column at key [$key] defined.");
		}
	}


	/********************************************************************************
	 *                                    Actions                                   *
	 ********************************************************************************/


	/**
	 * Create action
	 * @param string     $key
	 * @param string     $name
	 * @param string     $href
	 * @param array|null $params
	 */
	public function addAction($key, $name = '', $href = NULL, array $params = NULL)
	{
		$this->addActionCheck($key);
		$href = $href ?: $key;

		if (NULL === $params) {
			$params = [$this->primary_key];
		}

		return $this->actions[$key] = new Column\Action($this, $href, $name, $params);
	}


	/**
	 * Get existing action
	 * @param  string       $key
	 * @return Column\Action
	 * @throws DataGridException
	 */
	public function getAction($key)
	{
		if (!isset($this->actions[$key])) {
			throw new DataGridException("There is no action at key [$key] defined.");
		}

		return $this->actions[$key];
	}


	/**
	 * Remove action
	 * @param string $key
	 * @return void
	 */
	public function removeAction($key)
	{
		unset($this->actions[$key]);
	}


	/**
	 * Check whether given key already exists in $this->filters
	 * @param  string $key
	 * @throws DataGridException
	 */
	protected function addActionCheck($key)
	{
		if (isset($this->actions[$key])) {
			throw new DataGridException("There is already action at key [$key] defined.");
		}
	}


	/********************************************************************************
	 *                                    Filters                                   *
	 ********************************************************************************/


	/**
	 * Add filter fot text search
	 * @param string       $key
	 * @param string       $name
	 * @param array|string $columns
	 * @throws DataGridException
	 */
	public function addFilterText($key, $name, $columns = NULL)
	{
		$columns = NULL === $columns ? [$key] : (is_string($columns) ? [$columns] : $columns);

		if (!is_array($columns)) {
			throw new DataGridException("Filter Text can except only array or string.");
		}

		$this->addFilterCheck($key);

		return $this->filters[$key] = new Filter\FilterText($key, $name, $columns);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
	}


	/**
	 * Add select box filter
	 * @param string $key
	 * @param string $name
	 * @param array  $options
	 * @param string $column
	 * @throws DataGridException
	 */
	public function addFilterSelect($key, $name, $options, $column = NULL)

	{
		$column = $column ?: $key;

		if (!is_string($column)) {
			throw new DataGridException("Filter Select can only filter through one column.");
		}

		$this->addFilterCheck($key);

		return $this->filters[$key] = new Filter\FilterSelect($key, $name, $options, $column);
	}


	/**
	 * Add datepicker filter
	 * @param string $key
	 * @param string $name
	 * @param string $column
	 * @throws DataGridException
	 */
	public function addFilterDate($key, $name, $column = NULL)
	{
		$column = $column ?: $key;

		if (!is_string($column)) {
			throw new DataGridException("FilterDate can only filter through one column.");
		}

		$this->addFilterCheck($key);

		return $this->filters[$key] = new Filter\FilterDate($key, $name, $column);
	}


	/**
	 * Add range filter (from - to)
	 * @param string $key
	 * @param string $name
	 * @param string $column
	 * @throws DataGridException
	 */
	public function addFilterRange($key, $name, $column = NULL, $name_second = '-')

	{
		$column = $column ?: $key;

		if (!is_string($column)) {
			throw new DataGridException("FilterRange can only filter through one column.");
		}

		$this->addFilterCheck($key);

		return $this->filters[$key] = new Filter\FilterRange($key, $name, $column, $name_second);
	}


	/**
	 * Add datepicker filter (from - to)
	 * @param string $key
	 * @param string $name
	 * @param string $column
	 * @throws DataGridException
	 */
	public function addFilterDateRange($key, $name, $column = NULL, $name_second = '-')

	{
		$column = $column ?: $key;

		if (!is_string($column)) {
			throw new DataGridException("FilterDateRange can only filter through one column.");
		}

		$this->addFilterCheck($key);

		return $this->filters[$key] = new Filter\FilterDateRange($key, $name, $column, $name_second);
	}


	/**
	 * Check whether given key already exists in $this->filters
	 * @param  string $key
	 * @throws DataGridException
	 */
	protected function addFilterCheck($key)
	{
		if (isset($this->filters[$key])) {
			throw new DataGridException("There is already action at key [$key] defined.");
		}
	}


	/**
	 * Fill array of Filter\Filter[] with values from $this->filter persistent parameter
	 * Fill array of Column\Column[] with values from $this->sort   persistent parameter
	 * @return Filter\Filter[] $this->filters === Filter\Filter[]
	 */
	public function assableFilters()
	{
		foreach ($this->filter as $key => $value) {
			if (!isset($this->filters[$key])) {
				$this->deleteSesssionData($key);

				continue;
			}

			if (is_array($value) || $value instanceof \Traversable) {
				if (!ArraysHelper::testEmpty($value)) {
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
					$this->filters[$key]->setValue($value);
				}
			} else {
				if ($value !== '' && $value !== NULL) {
					$this->filters[$key]->setValue($value);
				}
			}
		}

		foreach ($this->columns as $column) {
			if (isset($this->sort[$column->getColumnName()])) {
				$column->setSort($this->sort);
			}
		}

		return $this->filters;
	}


	/**
	 * Try to restore session stuff
	 * @return void
	 */
	public function findSessionFilters()
	{
		if ($this->filter || ($this->page != 1) || $this->sort || $this->per_page) {

			return;
		}

		if (!$this->remember_state) {
			return;
		}

		if ($page = $this->getSessionData('_grid_page')) {
			$this->page = $page;
		}

		if ($per_page = $this->getSessionData('_grid_per_page')) {
			$this->per_page = $per_page;
		}

		if ($sort = $this->getSessionData('_grid_sort')) {
			$this->sort = $sort;

		}

		foreach ($this->getSessionData() as $key => $value) {
			if (!in_array($key, ['_grid_per_page', '_grid_sort', '_grid_page'])) {
				$this->filter[$key] = $value;
			}
		}
	}


	/**
	 * Remove filter
	 * @param string $key
	 * @return void
	 */
	public function removeFilter($key)
	{
		unset($this->filters[$key]);
	}


	/********************************************************************************
	 *                                    Exports                                   *
	 ********************************************************************************/


	/**
	 * Add export of type callback
	 * @param string   $text
	 * @param callable $callback
	 * @param boolean  $filtered
	 */
	public function addExportCallback($text, $callback, $filtered = FALSE)
	{
		if (!is_callable($callback)) {
			throw new DataGridException("Second parameter of ExportCallback must be callable.");
		}

		return $this->addToExports(new Export\Export($text, $callback, $filtered));
	}


	/**
	 * Add already implemented csv export
	 * @param string $text
	 * @param string $csv_file_name
	 */
	public function addExportCsv($text, $csv_file_name)
	{
		return $this->addToExports(new Export\ExportCsv($text, $csv_file_name, FALSE));
	}


	/**
	 * Add already implemented csv export, but for filtered data
	 * @param string $text
	 * @param string $csv_file_name
	 */
	public function addExportCsvFiltered($text, $csv_file_name)
	{
		return $this->addToExports(new Export\ExportCsv($text, $csv_file_name, TRUE));
	}


	/**
	 * Add export to array
	 * @param Export\Export $export
	 */
	protected function addToExports(Export\Export $export)
	{
		$id = ($s = sizeof($this->exports)) ? ($s + 1) : 1;

		$export->setLink($this->link('export!', ['id' => $id]));

		return $this->exports[$id] = $export;
	}


	/********************************************************************************
	 *                                 Group actions                                *
	 ********************************************************************************/


	/**
	 * Add group actino
	 * @param string $title
	 * @param array  $options
	 */
	public function addGroupAction($title, $options = [])
	{
		return $this->getGroupActionCollection()->addGroupAction($title, $options);
	}


	/**
	 * Get collection of all group actions
	 * @return GroupAction\GroupActionCollection
	 */
	public function getGroupActionCollection()
	{
		if (!$this->group_action_collection) {
			$this->group_action_collection = new GroupAction\GroupActionCollection();
		}

		return $this->group_action_collection;
	}


	/********************************************************************************
	 *                                    Signals                                   *
	 ********************************************************************************/


	/**
	 * Handler for changind page (just refresh site with page as persistent paramter set)
	 * @param  int  $page
	 * @return void
	 */
	public function handlePage($page)
	{
		/**
		 * Session stuff
		 */
		$this->page = $page;
		$this->saveSessionData('_grid_page', $page);

		$this->reload(['table']);
	}


	/**
	 * Handler for sorting
	 * @return void
	 */
	public function handleSort(array $sort)
	{
		/**
		 * Session stuff
		 */
		$this->sort = $sort;
		$this->saveSessionData('_grid_sort', $this->sort);

		$this->reload(['table']);
	}


	/**
	 * handler for reseting the filter
	 * @return void
	 */
	public function handleResetFilter()
	{
		/**
		 * Session stuff
		 */
		$this->deleteSesssionData('_grid_page');

		foreach ($this->getSessionData() as $key => $value) {
			if (!in_array($key, ['_grid_per_page', '_grid_sort', '_grid_page'])) {
				$this->deleteSesssionData($key);
				if ($value instanceof \Traversable) {
					foreach ($value as $key2 => $value2) {
						$this->filter[$key][$key2] = NULL;
					}
				} else {
					$this->filter[$key] = NULL;
				}
			}
		}

		$this->reload(['grid']);
	}


	/**
	 * Handler for export
	 * @param  int $id Key for particular export class in array $this->exports
	 * @return void
	 */
	public function handleExport($id)
	{
		if (!isset($this->exports[$id])) {
			throw new Nette\Application\ForbiddenRequestException;
		}

		$export = $this->exports[$id];

		if ($export->isFiltered()) {
			$sort      = $this->sort;
			$filter    = $this->assableFilters();
		} else {
			$sort      = $this->primary_key;
			$filter    = [];
		}

		if (NULL === $this->dataModel) {
			throw new DataGridException('You have to set a data source first.');
		}

		$data = Nette\Utils\Callback::invokeArgs(
			[$this->dataModel, 'filterData'], [NULL, $sort, $filter]
		);

		$export->invoke($data, $this);

		if ($export->isAjax()) {
			$this->reload();
		}
	}


	/**
	 * Handler for getting children of parent item (e.g. category)
	 * @param  int $parent
	 * @return void
	 */
	public function handleGetChildren($parent)

	{
		$this->setDataSource(
			call_user_func($this->tree_view_children_callback, $parent)
		);

		if ($this->getPresenter()->isAjax()) {
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
			$this->getPresenter()->payload->_datagrid_url = $this->refresh_url;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
			$this->getPresenter()->payload->_datagrid_tree = $parent;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}

			$this->redrawControl('items');
		} else {
			$this->getPresenter()->redirect('this');
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
		}
	}


	/**
	 * Handler for getting item detail
	 * @param  mixed $id
	 * @return void
	 */
	public function handleGetItemDetail($id)

	{
		$this->template->toggle_detail = $id;
<?php

/**
 * @property int $x
 * @property int $y
 * @property string $text
 */
class MyLabel
{
    private $properties;

    private $allowedProperties = array('x', 'y', 'text');

    public function __get($name)
    {
        if (isset($properties[$name]) && in_array($name, $this->allowedProperties)) {
            return $properties[$name];
        } else {
            return null;
        }
    }

    public function __set($name, $value)
    {
        if (in_array($name, $this->allowedProperties)) {
            $properties[$name] = $value;
        } else {
            throw new \LogicException("Property $name is not defined.");
        }
    }

}
		$this->redraw_item = [$this->items_detail->getPrimaryWhereColumn() => $id];


		if ($this->getPresenter()->isAjax()) {
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
			$this->getPresenter()->payload->_datagrid_toggle_detail = $id;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
			$this->redrawControl('items');
		} else {
			$this->getPresenter()->redirect('this');
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
		}
	}


	/**
	 * Handler for inline editing
	 * @param  mixed $id
	 * @param  mixed $key
	 * @return void
	 */
	public function handleEdit($id, $key)
	{
		$column = $this->getColumn($key);
		$value = $this->getPresenter()->getRequest()->getPost('value');
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

		call_user_func_array($column->getEditableCallback(), [$id, $value]);
	}


	/**
	 * Redraw $this
	 * @return void
	 */
	public function reload($snippets = [])
	{
		if ($this->getPresenter()->isAjax()) {
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
			$this->redrawControl('tbody');
			$this->redrawControl('pagination');

			/**
			 * manualy reset exports links...
			 */
			$this->resetExportsLinks();
			$this->redrawControl('exports');

			foreach ($snippets as $snippet) {
				$this->redrawControl($snippet);
			}

			$this->getPresenter()->payload->_datagrid_url = $this->refresh_url;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
		} else {
			$this->getPresenter()->redirect('this');
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
		}
	}


	/**
	 * Redraw just one row via ajax
	 * @param  int   $id
	 * @param  mixed $primary_where_column
	 * @return void
	 */
	public function redrawItem($id, $primary_where_column = NULL)
	{
		$this->redraw_item = [($primary_where_column ?: $this->primary_key) => $id];

		$this->redrawControl('items');
		$this->getPresenter()->payload->_datagrid_url = $this->refresh_url;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
	}


	/********************************************************************************
	 *                                  Components                                  *
	 ********************************************************************************/


	/**
	 * Paginator factory
	 * @return Components\DataGridPaginator\DataGridPaginator
	 */
	public function createComponentPaginator()
	{
		/**
		 * Init paginator
		 */
		$component = new Components\DataGridPaginator\DataGridPaginator;
		$paginator = $component->getPaginator();

		$paginator->setPage($this->page);
		$paginator->setItemsPerPage($this->getPerPage());

		return $component;
	}


	/**
	 * PerPage form factory
	 * @return Form
	 */
	public function createComponentPerPage()
	{
		$form = new Form;

		$form->addSelect('per_page', '', $this->getItemsPerPageList())
			->setValue($this->getPerPage());

		$form->addSubmit('submit', '');

		$saveSessionData = [$this, 'saveSessionData'];

		$form->onSuccess[] = function($form, $values) use ($saveSessionData) {
			/**
			 * Session stuff
			 */
			$saveSessionData('_grid_per_page', $values->per_page);

			/**
			 * Other stuff
			 */
			$this->per_page = $values->per_page;
			$this->reload();
		};

		return $form;
	}


	/**
	 * FilterAndGroupAction form factory
	 * @return Form
	 */
	public function createComponentFilter()
	{
		$form = new Form($this, 'filter');

		$form->setMethod('get');

		/**
		 * Filter part
		 */
		$filter_container = $form->addContainer('filter');

		foreach ($this->filters as $filter) {
			$filter->addToFormContainer($filter_container, $filter_container);
class ParentClass {
    private $data = array();

    public function __call($method, array $args) {
        if (0 === strpos($method, 'get')) {
            return $this->data[strtolower(substr($method, 3))];
        }

        throw new \LogicException(sprintf('Unsupported method: %s', $method));
    }
}

/**
 * If this class knows which fields exist, you can specify the methods here:
 *
 * @method string getName()
 */
class SomeClass extends ParentClass { }
		}

		/**
		 * Group action part
		 */
		$group_action_container = $form->addContainer('group_action');

		if ($this->hasGroupActions()) {
			$this->getGroupActionCollection()->addToFormContainer($group_action_container, $form, $this->getTranslator());
		}

		$form->setDefaults(['filter' => $this->filter]);

		$form->onSubmit[] = [$this, 'filterSucceeded'];

		return $form;
	}


	/**
	 * Set $this->filter values after filter form submitted
	 * @param  Form $form
	 * @return void
	 */
	public function filterSucceeded(Form $form)
	{
		$values = $form->getValues();

		if ($this->getPresenter()->isAjax()) {
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
			if (isset($form['group_action']['submit']) && $form['group_action']['submit']->isSubmittedBy()) {
				return;
			}
		}

		$values = $values['filter'];

		foreach ($values as $key => $value) {
			/**
			 * Session stuff
			 */
			$this->saveSessionData($key, $value);

			/**
			 * Other stuff
			 */
			$this->filter[$key] = $value;
		}

		$this->reload();
	}


	/********************************************************************************
	 *                               Support functions                              *
	 ********************************************************************************/


	public function resetExportsLinks()
	{
		foreach ($this->exports as $id => $export) {
			$export->setLink($this->link('export!', ['id' => $id]));
		}
	}


	/**
	 * Get parameter per_page
	 * @return int
	 */
	public function getPerPage()
	{
		$per_page = $this->per_page ?: reset($this->items_per_page_list);

		if ($per_page !== 'all' && !in_array($this->per_page, $this->items_per_page_list)) {
			$per_page = reset($this->items_per_page_list);
		}

		return $per_page;
	}


	/**
	 * Get associative array of items_per_page_list
	 * @return array
	 */
	public function getItemsPerPageList()
	{
		$list = array_flip($this->items_per_page_list);

		foreach ($list as $key => $value) {
			$list[$key] = $key;
		}

		$list['all'] = $this->getTranslator()->translate('Vše');

		return $list;
	}


	/**
	 * Get primary key of datagrid data source
	 * @return string
	 */
	public function getPrimaryKey()
	{
		return $this->primary_key;
	}


	/**
	 * Get set of set columns
	 * @return Column\IColumn[]
	 */
	public function getColumns()
	{
		return $this->columns;
	}


	/**
	 * Has datagrid some group actions?
	 * @return boolean
	 */
	public function hasGroupActions()
	{
		return (bool) $this->group_action_collection;
	}


	/**
	 * Get translator for datagrid
	 * @return Nette\Localization\ITranslator
	 */
	public function getTranslator()
	{
		if (!$this->translator) {
			$this->translator = new Localization\SimpleTranslator;
		}

		return $this->translator;
	}


	/**
	 * Set datagrid translator
	 * @param Nette\Localization\ITranslator $translator
	 */
	public function setTranslator(Nette\Localization\ITranslator $translator)
	{
		$this->translator = $translator;

		return $this;
	}


	/**
	 * Should be datagrid filters rendered separately?
	 * @param boolean $out
	 */
	public function setOuterFilterRendering($out = TRUE)
	{
		$this->outer_filter_rendering = (bool) $out;
	}


	/**
	 * Are datagrid filters rendered separately?
	 * @return boolean
	 */
	public function hasOuterFilterRendering()
	{
		return $this->outer_filter_rendering;
	}


	/**
	 * Set order of datagrid columns
	 * @param array $order
	 */
	public function setColumnsOrder($order)
	{
		$new_order = [];

		foreach ($order as $key) {
			if (isset($this->columns[$key])) {
				$new_order[$key] = $this->columns[$key];
			}
		}

		if (sizeof($new_order) === sizeof($this->columns)) {
			$this->columns = $new_order;
		} else {
			throw new DataGridException('When changing columns order, you have to specify all columns');
		}
	}


	/**
	 * Should datagrid remember its filters/pagination/etc using session?
	 * @param bool $remember
	 */
	public function setRememberState($remember = TRUE)
	{
		$this->remember_state = (bool) $remember;
	}


	/**
	 * Should datagrid refresh url using history API?
	 * @param bool $refresh
	 */
	public function setRefreshUrl($refresh = TRUE)
	{
		$this->refresh_url = (bool) $refresh;
	}


	/**
	 * Get session data if functionality is enabled
	 * @param  string $key
	 * @return mixed
	 */
	public function getSessionData($key = NULL)
	{
		if (!$this->remember_state) {
			return NULL;
		}

		return $key ? $this->grid_session->{$key} : $this->grid_session;
	}


	/**
	 * Save session data - just if it is enabled
	 * @param  string $key
	 * @param  mixed  $value
	 * @return void
	 */
	public function saveSessionData($key, $value)
	{

		if ($this->remember_state) {
			$this->grid_session->{$key} = $value;
		}
	}


	/**
	 * Delete session data
	 * @return void
	 */
	public function deleteSesssionData($key)
	{
		unset($this->grid_session->{$key});
	}


	/**
	 * Get items detail parameters
	 * @return array
	 */
	public function getItemsDetail()
	{
		return $this->items_detail;
	}


	/**
	 * Items can have thair detail - toggled
	 * @param mixed $detail callable|string|bool
	 */
	public function setItemsDetail($detail = TRUE, $primary_where_column = NULL)
	{
		if ($this->isSortable()) {
			throw new DataGridException('You can not use both sortable datagrid and items detail.');
		}

		$this->items_detail = new Column\ItemDetail(

			$this,
			$primary_where_column ?: $this->primary_key
		);

		if (is_string($detail)) {
			/**
			 * Item detail will be in separate template
			 */
			$this->items_detail->setType('template');
			$this->items_detail->setTemplate($detail);

		} else if (is_callable($detail)) {
			/**
			 * Item detail will be rendered via custom callback renderer
			 */
			$this->items_detail->setType('renderer');
			$this->items_detail->setRenderer($detail);

		} else if (TRUE === $detail) {
			/**
			 * Item detail will be rendered probably via block #detail
			 */
			$this->items_detail->setType('block');

		} else {
			throw new DataGridException(
				'::setItemsDetail() can be called either with no parameters or with parameter = template path or callable renderer.'
			);
		}

		return $this->items_detail;
	}


	/**
	 * Get cont of columns
	 * @return int
	 */
	public function getColumnsCount()
	{
		$count = sizeof($this->columns);

		if ($this->actions || $this->isSortable() || $this->getItemsDetail()) {

			$count++;
		}

		if ($this->hasGroupActions()) {
			$count++;
		}

		return $count;
	}


	public function allowRowsGroupAction(callable $condition)
	{
		$this->row_conditions['group_action'] = $condition;
	}


	public function allowRowsAction($key, callable $condition)
	{
		$this->row_conditions['action'][$key] = $condition;
	}


	public function getRowCondition($name, $key = NULL)
	{
		if (!isset($this->row_conditions[$name])) {
			return FALSE;
		}

		$condition = $this->row_conditions[$name];

		if (!$key) {
			return $condition;
		}

		return isset($condition[$key]) ? $condition[$key] : FALSE;
	}

}


class DataGridException extends \Exception

{
}

ublaboo / datagrid

Push — master ( a21e1b...e6e660 )

DataGrid F

Complexity

Size/Duplication

Coupling/Cohesion

Importance

81 Methods

How to fix Duplicated Code Complexity

Duplicated Code

Complex Class

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

1. Missing dependencies

2. Missing use statement

1. Missing dependencies

2. Missing use statement

1. Missing dependencies

2. Missing use statement

1. Missing dependencies

2. Missing use statement

1. Missing dependencies

2. Missing use statement

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Duplication Side-by-Side

Filter issues like
