SortableHeader::_getSortParts() - Code Metrics - Inspection of "SortableHeader:" - hamburgscleanest/data-tables - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( f511c0...29feb0 )

by Timo

created 2017-04-18 21:31 UTC

SortableHeader::_getSortParts() A

↳ Parent: SortableHeader

Complexity

Conditions	2
Paths	2

Size

Total Lines	10
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Importance

Changes

Metric	Value
dl	0
loc	10
ccs	0
cts	5
cp	0
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	5
nc	2
nop	1
crap	6

<?php

namespace hamburgscleanest\DataTables\Models\HeaderFormatters;

use hamburgscleanest\DataTables\Facades\SessionHelper;
use hamburgscleanest\DataTables\Facades\UrlHelper;
use hamburgscleanest\DataTables\Interfaces\HeaderFormatter;
use hamburgscleanest\DataTables\Models\Header;
use Illuminate\Http\Request;

/**
 * Class SortableHeader
 *
 * Either whitelist the headers you want to make sortable
 * or blacklist the headers you do not want to become sortable.
 *
 * If nothing is specified, all headers are sortable.
 *
 * @package hamburgscleanest\DataTables\Models\HeaderFormatters
 */
class SortableHeader implements HeaderFormatter {

    const SORTING_SEPARATOR = '~';
    const COLUMN_SEPARATOR  = '.';

    /** @var string */
    private $_defaultDirection = 'asc';

    /** @var array */
    private $_sortableHeaders;

    /** @var array */
    private $_dontSort;

    /** @var array */
    private $_sortingSymbols = ['asc' => '&#x25B2;', 'desc' => '&#x25BC;', 'none' => '⇵'];

    /**
     * SortableHeader constructor.
     *
     * @param array $sortableHeaders
     * @param array $dontSort
     */
    public function __construct(array $sortableHeaders = [], array $dontSort = [])
    {
        $this->_sortableHeaders = $sortableHeaders;
        $this->_dontSort = $dontSort;

    }

    /**
     * @param array $sortingSymbols
     * @return SortableHeader
     */
    public function sortingSymbols(array $sortingSymbols) : SortableHeader
    {
        $this->_sortingSymbols = $sortingSymbols;

        return $this;
    }

    /**
     * Add a field to the sortable fields.
     *
     * @param string $header
     * @return SortableHeader
     */
    public function makeSortable(string $header) : SortableHeader
    {
        $this->_sortableHeaders[] = $header;
        $this->_removeIndex($this->_dontSort, $header);

        return $this;
    }

    /**
     * @param array $array
     * @param string $key
     */
    private function _removeIndex(array $array, string $key)
    {
        $index = \array_search($key, $array, true);
        if ($index !== false)
        {
            unset($array[$index]);
        }
    }

    /**
     * Remove the ability to sort by this column/header.
     *
     * @param string $header
     * @return SortableHeader
     */
    public function dontSort(string $header) : SortableHeader
    {
        $this->_dontSort[] = $header;
        $this->_removeIndex($this->_sortableHeaders, $header);

        return $this;
    }

    /**
     * Adds a link to sort by this header/column.
     * Also indicates how the columns are sorted (when sorted).
     *
     * @param Header $header
     * @param Request $request
     * @throws \RuntimeException
     */
    public function format(Header $header, Request $request)
    {
        $headerAttributeName = $header->getAttributeName();
        $sortFields = $this->_extractSortFields($request);
        $direction = $sortFields[$headerAttributeName] ?? 'none';

        if ($this->_showSortLink($headerAttributeName))
        {
            $header->name = '<a class="sortable-header" href="' . ($request->url() . '?' . $this->_buildSortQuery($headerAttributeName, $direction)) . '">' .
                            $header->name . ' <span class="sort-symbol">' . ($this->_sortingSymbols[$direction] ?? '') . '</span></a>';
        }
    }

    /**
     * @param Request $request
     * @return array
     */
    private function _extractSortFields(Request $request) : array
    {
        return \array_diff(
            $this->_getRememberedState($request) + $this->_getDefaultSorting($this->_sortableHeaders),
            $this->_getDefaultSorting($this->_dontSort)
        );
    }

    /**
     * @param Request $request
     * @return array
     */
    private function _getRememberedState(Request $request) : array
    {
        return SessionHelper::getState($request, 'sort', []);
    }

    /**
     * @param array $sortFields
     * @return array
     */
    private function _getDefaultSorting(array $sortFields) : array
    {
        $sorting = [];
        foreach ($sortFields as $field)
        {
            $sorting[$field] = 'none';
        }

        return $sorting;
    }

    /**
     * @param $headerAttributeName
     * @return bool
     */
    private function _showSortLink(string $headerAttributeName) : bool
    {
        return \count($this->_sortableHeaders + $this->_dontSort) === 0 ||
               (\in_array($headerAttributeName, $this->_sortableHeaders, true) && !\in_array($headerAttributeName, $this->_dontSort, true));
    }

    /**
     * @param string $columnName
     * @param string $oldDirection
     * @return string
     * @throws \RuntimeException
     */
    private function _buildSortQuery(string $columnName, string &$oldDirection)
    {
        $parameters = UrlHelper::queryParameters();
        if (!isset($parameters['sort']))
        {
            $parameters['sort'] = '';
        }

        $queryDirection = $this->_getDirectionFromQuery($columnName, $parameters['sort']);
        if ($queryDirection !== null)
        {
            /** @var string $queryDirection */
            $oldDirection = $queryDirection;
        }

        $newDirection = $this->_getNewDirection($oldDirection);
        $newSorting = $columnName . self::SORTING_SEPARATOR . $newDirection;
        if (!$this->_replaceOldSort($columnName, $parameters, $oldDirection, $newSorting))
        {
            $this->_addSortParameter($parameters, $newSorting);
        }

        return \http_build_query($parameters);
    }

    /**
     * @param string $columnName
     * @param string $queryString
     * @return null|string
     */
    private function _getDirectionFromQuery(string $columnName, string $queryString) : ?string
    {
        $column = $columnName . self::SORTING_SEPARATOR;
        $columnPos = \mb_strpos($queryString, $column);

        if ($columnPos === false)
        {
            return null;
        }

        $sortValue = \mb_substr($queryString, $columnPos + \mb_strlen($column));
        $dividerPos = \mb_strpos($sortValue, self::COLUMN_SEPARATOR);
        if ($dividerPos !== false)
        {
            $sortValue = \mb_substr($sortValue, 0, $dividerPos);
        }

        return $sortValue;
    }

    /**
     * Get the next sorting direction.
     *
     * @param string $oldDirection
     * @return string
     */
    private function _getNewDirection(string $oldDirection) : string
    {
        switch ($oldDirection)
        {
            case 'asc':
                $newDirection = 'desc';
                break;
            case 'desc':
                $newDirection = 'none';
                break;
            default:
                $newDirection = 'asc';
        }

        return $newDirection;
    }

    /**
     * @param string $columnName
     * @param array $parameters
     * @param string $oldDirection
     * @param string $newSorting
     * @return bool
     */
    private function _replaceOldSort(string $columnName, array &$parameters, string $oldDirection, string $newSorting) : bool
    {
        $replacedCount = 0;
        $columnRegex = '/(^|\\' . self::COLUMN_SEPARATOR . ')' . $columnName . '(' . self::SORTING_SEPARATOR . $oldDirection . '|)/';
        $parameters['sort'] = \preg_replace($columnRegex, self::COLUMN_SEPARATOR . $newSorting, $parameters['sort'], 1, $replacedCount);
        if (!empty($parameters['sort']) && $parameters['sort'][0] === self::COLUMN_SEPARATOR)
        {
            $parameters['sort'] = \mb_substr($parameters['sort'], 1);
        }

        return $replacedCount > 0;
    }

    /**
     * @param array $parameters
     * @param string $newSorting
     */
    private function _addSortParameter(array &$parameters, string $newSorting)
    {
        if (!empty($parameters['sort']))
        {
            $newSorting = self::COLUMN_SEPARATOR . $newSorting;
        }
        $parameters['sort'] .= $newSorting;
    }
}

1		<?php
2
3		namespace hamburgscleanest\DataTables\Models\HeaderFormatters;
4
5		use hamburgscleanest\DataTables\Facades\SessionHelper;
6		use hamburgscleanest\DataTables\Facades\UrlHelper;
7		use hamburgscleanest\DataTables\Interfaces\HeaderFormatter;
8		use hamburgscleanest\DataTables\Models\Header;
9		use Illuminate\Http\Request;
10
11		/**
12		* Class SortableHeader
13		*
14		* Either whitelist the headers you want to make sortable
15		* or blacklist the headers you do not want to become sortable.
16		*
17		* If nothing is specified, all headers are sortable.
18		*
19		* @package hamburgscleanest\DataTables\Models\HeaderFormatters
20		*/
21		class SortableHeader implements HeaderFormatter {
22
23		const SORTING_SEPARATOR = '~';
24		const COLUMN_SEPARATOR = '.';
25
26		/** @var string */
27		private $_defaultDirection = 'asc';
28
29		/** @var array */
30		private $_sortableHeaders;
31
32		/** @var array */
33		private $_dontSort;
34
35		/** @var array */
36		private $_sortingSymbols = ['asc' => '▲', 'desc' => '▼', 'none' => '⇵'];
37
38		/**
39		* SortableHeader constructor.
40		*
41		* @param array $sortableHeaders
42		* @param array $dontSort
43		*/
44	11	public function __construct(array $sortableHeaders = [], array $dontSort = [])
45		{
46	11	$this->_sortableHeaders = $sortableHeaders;
47	11	$this->_dontSort = $dontSort;
48
49	11	}
50
51		/**
52		* @param array $sortingSymbols
53		* @return SortableHeader
54		*/
55	1	public function sortingSymbols(array $sortingSymbols) : SortableHeader
56		{
57	1	$this->_sortingSymbols = $sortingSymbols;
58
59	1	return $this;
60		}
61
62		/**
63		* Add a field to the sortable fields.
64		*
65		* @param string $header
66		* @return SortableHeader
67		*/
68	1	public function makeSortable(string $header) : SortableHeader
69		{
70	1	$this->_sortableHeaders[] = $header;
71	1	$this->_removeIndex($this->_dontSort, $header);
72
73	1	return $this;
74		}
75
76		/**
77		* @param array $array
78		* @param string $key
79		*/
80	2	private function _removeIndex(array $array, string $key)
81		{
82	2	$index = \array_search($key, $array, true);
83	2	if ($index !== false)
84		{
85	1	unset($array[$index]);
86		}
87	2	}
88
89		/**
90		* Remove the ability to sort by this column/header.
91		*
92		* @param string $header
93		* @return SortableHeader
94		*/
95	1	public function dontSort(string $header) : SortableHeader
96		{
97	1	$this->_dontSort[] = $header;
98	1	$this->_removeIndex($this->_sortableHeaders, $header);
99
100	1	return $this;
101		}
102
103		/**
104		* Adds a link to sort by this header/column.
105		* Also indicates how the columns are sorted (when sorted).
106		*
107		* @param Header $header
108		* @param Request $request
109		* @throws \RuntimeException
110		*/
111	11	public function format(Header $header, Request $request)
112		{
113	11	$headerAttributeName = $header->getAttributeName();
114	11	$sortFields = $this->_extractSortFields($request);
115	11	$direction = $sortFields[$headerAttributeName] ?? 'none';
116
117	11	if ($this->_showSortLink($headerAttributeName))
118		{
119	10	$header->name = '<a class="sortable-header" href="' . ($request->url() . '?' . $this->_buildSortQuery($headerAttributeName, $direction)) . '">' .
120	10	$header->name . ' <span class="sort-symbol">' . ($this->_sortingSymbols[$direction] ?? '') . '</span></a>';
121		}
122	11	}
123
124		/**
125		* @param Request $request
126		* @return array
127		*/
128	11	private function _extractSortFields(Request $request) : array
129		{
130	11	return \array_diff(
131	11	$this->_getRememberedState($request) + $this->_getDefaultSorting($this->_sortableHeaders),
132	11	$this->_getDefaultSorting($this->_dontSort)
133		);
134		}
135
136		/**
137		* @param Request $request
138		* @return array
139		*/
140	11	private function _getRememberedState(Request $request) : array
141		{
142	11	return SessionHelper::getState($request, 'sort', []);
143		}
144
145		/**
146		* @param array $sortFields
147		* @return array
148		*/
149	11	private function _getDefaultSorting(array $sortFields) : array
150		{
151	11	$sorting = [];
152	11	foreach ($sortFields as $field)
153		{
154	11	$sorting[$field] = 'none';
155		}
156
157	11	return $sorting;
158		}
159
160		/**
161		* @param $headerAttributeName
162		* @return bool
163		*/
164	11	private function _showSortLink(string $headerAttributeName) : bool
165		{
166	11	return \count($this->_sortableHeaders + $this->_dontSort) === 0 \|\|
167	11	(\in_array($headerAttributeName, $this->_sortableHeaders, true) && !\in_array($headerAttributeName, $this->_dontSort, true));
168		}
169
170		/**
171		* @param string $columnName
172		* @param string $oldDirection
173		* @return string
174		* @throws \RuntimeException
175		*/
176	10	private function _buildSortQuery(string $columnName, string &$oldDirection)
177		{
178	10	$parameters = UrlHelper::queryParameters();
179	10	if (!isset($parameters['sort']))
180		{
181	4	$parameters['sort'] = '';
182		}
183
184	10	$queryDirection = $this->_getDirectionFromQuery($columnName, $parameters['sort']);
185	10	if ($queryDirection !== null)
186		{
187		/** @var string $queryDirection */
188	5	$oldDirection = $queryDirection;
189		}
190
191	10	$newDirection = $this->_getNewDirection($oldDirection);
192	10	$newSorting = $columnName . self::SORTING_SEPARATOR . $newDirection;
193	10	if (!$this->_replaceOldSort($columnName, $parameters, $oldDirection, $newSorting))
194		{
195	5	$this->_addSortParameter($parameters, $newSorting);
196		}
197
198	10	return \http_build_query($parameters);
199		}
200
201		/**
202		* @param string $columnName
203		* @param string $queryString
204		* @return null\|string
205		*/
206	10	private function _getDirectionFromQuery(string $columnName, string $queryString) : ?string
207		{
208	10	$column = $columnName . self::SORTING_SEPARATOR;
209	10	$columnPos = \mb_strpos($queryString, $column);
210
211	10	if ($columnPos === false)
212		{
213	6	return null;
214		}
215
216	5	$sortValue = \mb_substr($queryString, $columnPos + \mb_strlen($column));
217	5	$dividerPos = \mb_strpos($sortValue, self::COLUMN_SEPARATOR);
218	5	if ($dividerPos !== false)
219		{
220	1	$sortValue = \mb_substr($sortValue, 0, $dividerPos);
221		}
222
223	5	return $sortValue;
224		}
225
226		/**
227		* Get the next sorting direction.
228		*
229		* @param string $oldDirection
230		* @return string
231		*/
232	10	private function _getNewDirection(string $oldDirection) : string
233		{
234		switch ($oldDirection)
235		{
236	10	case 'asc':
237	2	$newDirection = 'desc';
238	2	break;
239	9	case 'desc':
240	4	$newDirection = 'none';
241	4	break;
242		default:
243	6	$newDirection = 'asc';
244		}
245
246	10	return $newDirection;
247		}
248
249		/**
250		* @param string $columnName
251		* @param array $parameters
252		* @param string $oldDirection
253		* @param string $newSorting
254		* @return bool
255		*/
256	10	private function _replaceOldSort(string $columnName, array &$parameters, string $oldDirection, string $newSorting) : bool
257		{
258	10	$replacedCount = 0;
259	10	$columnRegex = '/(^\|\\' . self::COLUMN_SEPARATOR . ')' . $columnName . '(' . self::SORTING_SEPARATOR . $oldDirection . '\|)/';
260	10	$parameters['sort'] = \preg_replace($columnRegex, self::COLUMN_SEPARATOR . $newSorting, $parameters['sort'], 1, $replacedCount);
261	10	if (!empty($parameters['sort']) && $parameters['sort'][0] === self::COLUMN_SEPARATOR)
262		{
263	6	$parameters['sort'] = \mb_substr($parameters['sort'], 1);
264		}
265
266	10	return $replacedCount > 0;
267		}
268
269		/**
270		* @param array $parameters
271		* @param string $newSorting
272		*/
273	5	private function _addSortParameter(array &$parameters, string $newSorting)
274		{
275	5	if (!empty($parameters['sort']))
276		{
277	1	$newSorting = self::COLUMN_SEPARATOR . $newSorting;
278		}
279	5	$parameters['sort'] .= $newSorting;
280		}
281		}

hamburgscleanest / data-tables

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SortableHeader::_getSortParts() A

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