DataTable::_renderHeaders() - Code Metrics - Inspection of "Merge remote-tracking branch 'origin/master'" - hamburgscleanest/data-tables - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 0a0c13...17c496 )

by Timo

created 2017-04-11 13:34 UTC

DataTable::_renderHeaders() B

↳ Parent: DataTable

Complexity

Conditions	3
Paths	4

Size

Total Lines	28
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	14
CRAP Score	3

Importance

Changes

Metric	Value
dl	0
loc	28
ccs	14
cts	14
cp	1
rs	8.8571
c	0
b	0
f	0
cc	3
eloc	13
nc	4
nop	0
crap	3

<?php

namespace hamburgscleanest\DataTables\Models;

use Closure;
use hamburgscleanest\DataTables\Interfaces\HeaderFormatter;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Http\Request;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Schema;
use RuntimeException;

/**
 * Class DataTable
 * @package hamburgscleanest\DataTables\Models
 */
class DataTable {

    /** @var Request */
    private $_request;

    /** @var Builder */
    private $_queryBuilder;

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

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

    /** @var Closure */
    private $_rowRenderer; // TODO: IColumnFormatter => DateColumnFormatter etc.

    /** @var string */
    private $_classes;

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

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

    /**
     * DataTable constructor.
     * @param Request $request
     */
    public function __construct(Request $request)
    {
        $this->_request = $request;
    }

    /**
     * Set the base model whose data is displayed in the table.
     *
     * @param string $modelName
     * @param array $columns
     * @return $this
     * @throws \RuntimeException
     */
    public function model(string $modelName, array $columns = [])
    {
        if (!\class_exists($modelName))
        {
            throw new RuntimeException('Class "' . $modelName . '" does not exist!');
        }

        if (!\is_subclass_of($modelName, Model::class))
        {
            throw new RuntimeException('"' . $modelName . '" is not an active record!');
        }

        $this->_queryBuilder = (new $modelName)->newQuery();
        $this->_columns = $columns;

        return $this;
    }

    /**
     * @return Builder
     */
    public function query()
    {
        return $this->_queryBuilder;
    }

    /**
     * Displayed columns
     *
     * @param array $columns
     * @return $this
     */
    public function columns(array $columns)
    {
        $this->_columns += $columns;

        return $this;
    }

    /**
     * Manipulate each rendered row.
     *
     * @param Closure $customRowRenderer
     * @return $this
     */
    public function renderRow(Closure $customRowRenderer)
    {
        $this->_rowRenderer = $customRowRenderer;

        return $this;
    }

    /**
     * Add a component to the data table.
     * For example a "Paginator" or a "Sorter".
     *
     * @param DataComponent $component
     *
     * @return $this
     */
    public function addComponent(DataComponent $component)
    {
        $component->init($this->_queryBuilder, $this->_request);
        $this->_components[] = $component;

        return $this;
    }

    /**
     * Add a formatter for the column headers.
     *
     * @param HeaderFormatter $headerFormatter
     * @return $this
     */
    public function formatHeaders(HeaderFormatter $headerFormatter)
    {
        $this->_headerFormatters[] = $headerFormatter;

        return $this;
    }

    /**
     * Get data which should be displayed in the table.
     *
     * @return \Illuminate\Database\Eloquent\Collection
     *
     * @throws \RuntimeException
     */
    private function _getData()
    {
        if ($this->_queryBuilder === null)
        {
            throw new RuntimeException('Unknown base model!');
        }

        if (\count($this->_relations) > 0)
        {
            $this->_queryBuilder->with($this->_relations);
        }

        /** @var DataComponent $component */
        foreach ($this->_components as $component)
        {
            $component->transformData();
        }

        return $this->_queryBuilder->get();
    }

    /**
     * Add classes to the table.
     *
     * @param string $classes
     *
     * @return $this
     */
    public function classes(string $classes)
    {
        $this->_classes = $classes;

        return $this;
    }

    /**
     * Renders the column headers.
     *
     * @return string
     */
    private function _renderHeaders()
    {
        if (\count($this->_columns) === 0)
        {
            $this->_columns = Schema::getColumnListing($this->_queryBuilder->getQuery()->from);
        }

        $headers = array_map(
            function($name)
            {
                return new Header($name);
            },
            $this->_columns
        );

        $html = '<tr>';

        /** @var Header $header */
        foreach ($headers as $header)
        {
            $header->formatArray($this->_headerFormatters, $this->_request);

            $html .= '<th>' . $header->name . '</th>';
        }
        $html .= '</tr>';

        return $html;
    }

    /**
     * Displays the table body.
     *
     * @param Collection $data
     *
     * @return string
     */
    private function _renderBody(Collection $data)
    {
        $html = '';
        foreach ($data as $row)
        {
            $html .= $this->_renderRow($row);
        }

        return $html;
    }

    /**
     * Get all the mutated attributes which are needed.
     *
     * @param Model $model
     * @param array $columns
     * @return array
     */
    private function _getMutatedAttributes(Model $model, array $columns = []): array
    {
        $attributes = [];
        foreach (\array_intersect_key($model->getMutatedAttributes(), $columns) as $attribute)
        {
            $attributes[$attribute] = $model->{$attribute};
        }

        return $attributes;
    }

    /**
     * Displays a single row.
     *
     * @param Model $rowModel
     *
     * @return string
     */
    private function _renderRow(Model $rowModel)
    {
        if ($this->_rowRenderer !== null)
        {
            $rowModel = $this->_rowRenderer->call($this, $rowModel);
        }

        $attributes = $rowModel->getAttributes() + $this->_getMutatedAttributes($rowModel, $this->_columns);

        $html = '<tr>';
        foreach ($this->_columns as $column)
        {
            $html .= '<td>' . ($attributes[$column] ?? '') . '</td>';
        }
        $html .= '</tr>';

        return $html;
    }

    /**
     * Add a relation to the table.
     *
     * @param array $relations
     * @return $this
     */
    public function with(array $relations)
    {
        $this->_relations += $relations;

        return $this;
    }

    /**
     * Starts the table.
     *
     * @return string
     */
    private function _open()
    {
        return '<table class="' . ($this->_classes ?? 'table') . '">';
    }

    /**
     * Closes the table.
     *
     * @return string
     */
    private function _close()
    {
        return '</table>';
    }

    /**
     * Renders the table.
     *
     * @param null|Closure $noDataView
     *
     * @return string
     * @throws \RuntimeException
     */
    public function render(Closure $noDataView = null)
    {
        $data = $this->_getData();

        if ($data->count() === 0)
        {
            return $noDataView !== null ? $noDataView->call($this) : '<div>no data</div>';
        }

        return $this->_open() . $this->_renderHeaders() . $this->_renderBody($data) . $this->_close();
    }
}

1		<?php
2
3		namespace hamburgscleanest\DataTables\Models;
4
5		use Closure;
6		use hamburgscleanest\DataTables\Interfaces\HeaderFormatter;
7		use Illuminate\Database\Eloquent\Builder;
8		use Illuminate\Database\Eloquent\Model;
9		use Illuminate\Http\Request;
10		use Illuminate\Support\Collection;
11		use Illuminate\Support\Facades\Schema;
12		use RuntimeException;
13
14		/**
15		* Class DataTable
16		* @package hamburgscleanest\DataTables\Models
17		*/
18		class DataTable {
19
20		/** @var Request */
21		private $_request;
22
23		/** @var Builder */
24		private $_queryBuilder;
25
26		/** @var array */
27		private $_headerFormatters = [];
28
29		/** @var array */
30		private $_components = [];
31
32		/** @var Closure */
33		private $_rowRenderer; // TODO: IColumnFormatter => DateColumnFormatter etc.
34
35		/** @var string */
36		private $_classes;
37
38		/** @var array */
39		private $_columns = [];
40
41		/** @var array */
42		private $_relations = [];
43
44		/**
45		* DataTable constructor.
46		* @param Request $request
47		*/
48	22	public function __construct(Request $request)
49		{
50	22	$this->_request = $request;
51	22	}
52
53		/**
54		* Set the base model whose data is displayed in the table.
55		*
56		* @param string $modelName
57		* @param array $columns
58		* @return $this
59		* @throws \RuntimeException
60		*/
61	21	public function model(string $modelName, array $columns = [])
62		{
63	21	if (!\class_exists($modelName))
64		{
65	1	throw new RuntimeException('Class "' . $modelName . '" does not exist!');
66		}
67
68	20	if (!\is_subclass_of($modelName, Model::class))
69		{
70	1	throw new RuntimeException('"' . $modelName . '" is not an active record!');
71		}
72
73	19	$this->_queryBuilder = (new $modelName)->newQuery();
74	19	$this->_columns = $columns;
75
76	19	return $this;
77		}
78
79		/**
80		* @return Builder
81		*/
82	11	public function query()
83		{
84	11	return $this->_queryBuilder;
85		}
86
87		/**
88		* Displayed columns
89		*
90		* @param array $columns
91		* @return $this
92		*/
93	1	public function columns(array $columns)
94		{
95	1	$this->_columns += $columns;
96
97	1	return $this;
98		}
99
100		/**
101		* Manipulate each rendered row.
102		*
103		* @param Closure $customRowRenderer
104		* @return $this
105		*/
106	1	public function renderRow(Closure $customRowRenderer)
107		{
108	1	$this->_rowRenderer = $customRowRenderer;
109
110	1	return $this;
111		}
112
113		/**
114		* Add a component to the data table.
115		* For example a "Paginator" or a "Sorter".
116		*
117		* @param DataComponent $component
118		*
119		* @return $this
120		*/
121	8	public function addComponent(DataComponent $component)
122		{
123	8	$component->init($this->_queryBuilder, $this->_request);
124	8	$this->_components[] = $component;
125
126	8	return $this;
127		}
128
129		/**
130		* Add a formatter for the column headers.
131		*
132		* @param HeaderFormatter $headerFormatter
133		* @return $this
134		*/
135	5	public function formatHeaders(HeaderFormatter $headerFormatter)
136		{
137	5	$this->_headerFormatters[] = $headerFormatter;
138
139	5	return $this;
140		}
141
142		/**
143		* Get data which should be displayed in the table.
144		*
145		* @return \Illuminate\Database\Eloquent\Collection
146		*
147		* @throws \RuntimeException
148		*/
149	16	private function _getData()
150		{
151	16	if ($this->_queryBuilder === null)
152		{
153	1	throw new RuntimeException('Unknown base model!');
154		}
155
156	15	if (\count($this->_relations) > 0)
157		{
158		$this->_queryBuilder->with($this->_relations);
159		}
160
161		/** @var DataComponent $component */
162	15	foreach ($this->_components as $component)
163		{
164	4	$component->transformData();
165		}
166
167	15	return $this->_queryBuilder->get();
168		}
169
170		/**
171		* Add classes to the table.
172		*
173		* @param string $classes
174		*
175		* @return $this
176		*/
177	1	public function classes(string $classes)
178		{
179	1	$this->_classes = $classes;
180
181	1	return $this;
182		}
183
184		/**
185		* Renders the column headers.
186		*
187		* @return string
188		*/
189	13	private function _renderHeaders()
190		{
191	13	if (\count($this->_columns) === 0)
192		{
193	1	$this->_columns = Schema::getColumnListing($this->_queryBuilder->getQuery()->from);
194		}
195
196	13	$headers = array_map(
197	13	function($name)
198		{
199	13	return new Header($name);
200	13	},
201	13	$this->_columns
202		);
203
204	13	$html = '<tr>';
205
206		/** @var Header $header */
207	13	foreach ($headers as $header)
208		{
209	13	$header->formatArray($this->_headerFormatters, $this->_request);
210
211	13	$html .= '<th>' . $header->name . '</th>';
212		}
213	13	$html .= '</tr>';
214
215	13	return $html;
216		}
217
218		/**
219		* Displays the table body.
220		*
221		* @param Collection $data
222		*
223		* @return string
224		*/
225	13	private function _renderBody(Collection $data)
226		{
227	13	$html = '';
228	13	foreach ($data as $row)
229		{
230	13	$html .= $this->_renderRow($row);
231		}
232
233	13	return $html;
234		}
235
236		/**
237		* Get all the mutated attributes which are needed.
238		*
239		* @param Model $model
240		* @param array $columns
241		* @return array
242		*/
243	13	private function _getMutatedAttributes(Model $model, array $columns = []): array
244		{
245	13	$attributes = [];
246	13	foreach (\array_intersect_key($model->getMutatedAttributes(), $columns) as $attribute)
247		{
248	13	$attributes[$attribute] = $model->{$attribute};
249		}
250
251	13	return $attributes;
252		}
253
254		/**
255		* Displays a single row.
256		*
257		* @param Model $rowModel
258		*
259		* @return string
260		*/
261	13	private function _renderRow(Model $rowModel)
262		{
263	13	if ($this->_rowRenderer !== null)
264		{
265	1	$rowModel = $this->_rowRenderer->call($this, $rowModel);
266		}
267
268	13	$attributes = $rowModel->getAttributes() + $this->_getMutatedAttributes($rowModel, $this->_columns);
269
270	13	$html = '<tr>';
271	13	foreach ($this->_columns as $column)
272		{
273	13	$html .= '<td>' . ($attributes[$column] ?? '') . '</td>';
274		}
275	13	$html .= '</tr>';
276
277	13	return $html;
278		}
279
280		/**
281		* Add a relation to the table.
282		*
283		* @param array $relations
284		* @return $this
285		*/
286		public function with(array $relations)
287		{
288		$this->_relations += $relations;
289
290		return $this;
291		}
292
293		/**
294		* Starts the table.
295		*
296		* @return string
297		*/
298	13	private function _open()
299		{
300	13	return '<table class="' . ($this->_classes ?? 'table') . '">';
301		}
302
303		/**
304		* Closes the table.
305		*
306		* @return string
307		*/
308	13	private function _close()
309		{
310	13	return '</table>';
311		}
312
313		/**
314		* Renders the table.
315		*
316		* @param null\|Closure $noDataView
317		*
318		* @return string
319		* @throws \RuntimeException
320		*/
321	16	public function render(Closure $noDataView = null)
322		{
323	16	$data = $this->_getData();
324
325	15	if ($data->count() === 0)
326		{
327	2	return $noDataView !== null ? $noDataView->call($this) : '<div>no data</div>';
328		}
329
330	13	return $this->_open() . $this->_renderHeaders() . $this->_renderBody($data) . $this->_close();
331		}
332		}

hamburgscleanest / data-tables

Push — master ( 0a0c13...17c496 )

DataTable::_renderHeaders() B

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