DataTable::render() - Code Metrics - Inspection of "- rendering functions extracted" - hamburgscleanest/data-tables - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 597177...94412d )

by Timo

created 2017-04-13 21:01 UTC

DataTable::render() A

↳ Parent: DataTable

Complexity

Conditions	2
Paths	2

Size

Total Lines	16
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	2

Importance

Changes

Metric	Value
dl	0
loc	16
ccs	9
cts	9
cp	1
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	9
nc	2
nop	0
crap	2

<?php

namespace hamburgscleanest\DataTables\Models;

use hamburgscleanest\DataTables\Facades\TableRenderer;
use hamburgscleanest\DataTables\Interfaces\ColumnFormatter;
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 string */
    private $_classes;

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

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

    /** @var string */
    private $_noDataHtml = '<div>no data</div>';

    /**
     * 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 $columns = []) : DataTable
    {
        if (!\class_exists($modelName) || !\is_subclass_of($modelName, Model::class))
        {
            throw new RuntimeException('Class "' . $modelName . '" does not exist or is not an active record!');
        }

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

        return $this;
    }

    /**
     * Returns an array of Column objects which may be bound to a formatter.
     *
     * @param array $columns
     * @return array
     */
    private function _fetchColumns(array $columns) : array
    {
        $columnModels = [];
        foreach ($columns as $column => $formatter)
        {
            [$column, $formatter] = $this->_setColumnFormatter($column, $formatter);
            $columnModels[] = new Column($column, $formatter);
        }

        return $columnModels;
    }

    /**
     * @param $column
     * @param $formatter
     * @return array
     */
    private function _setColumnFormatter($column, $formatter) : array
    {
        if (\is_int($column))
        {
            $column = $formatter;
            $formatter = null;
        }

        return [$column, $formatter];
    }

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

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

        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) : DataTable
    {
        $component->init($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) : DataTable
    {
        $this->_headerFormatters[] = $headerFormatter;

        return $this;
    }

    /**
     * Add a formatter for a column.
     *
     * @param string $columnName
     * @param ColumnFormatter $columnFormatter
     * @return DataTable
     */
    public function formatColumn(string $columnName, ColumnFormatter $columnFormatter) : DataTable
    {
        /** @var Column $column */
        $column = \array_first(
            $this->_columns,
            function($index, $column) use ($columnName)
            {
                /** @var Column $column */
                return $column->getName() === $columnName;
            }
        );

        if ($column !== null)
        {
            $column->setFormatter($columnFormatter);
        }

        return $this;
    }

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

        return $this;
    }

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

        return $this;
    }

    /**
     * Set the HTML which should be displayed when the dataset is empty.
     *
     * @param string $html
     * @return DataTable
     */
    public function noDataHtml(string $html) : DataTable
    {
        $this->_noDataHtml = $html;

        return $this;
    }

    /**
     * Set a view which should be displayed when the dataset is empty.
     *
     * @param string $viewName
     * @return DataTable
     */
    public function noDataView(string $viewName) : DataTable
    {
        $this->_noDataHtml = \view($viewName)->render();

        return $this;
    }

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

        if ($data->count() === 0)
        {
            return $this->_noDataHtml;
        }

        $this->_initColumns();

        return TableRenderer::open($this->_classes) .
               TableRenderer::renderHeaders($this->_fetchHeaders(), $this->_headerFormatters) .
               TableRenderer::renderBody($data, $this->_columns) .
               TableRenderer::close();
    }

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

        $this->_addRelations();

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

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

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

    private function _initColumns()
    {
        if (\count($this->_columns) === 0)
        {
            $this->_columns = $this->_fetchColumns(Schema::getColumnListing($this->_queryBuilder->getQuery()->from));
        }
    }

    /**
     * @return array
     */
    private function _fetchHeaders() : array
    {
        return array_map(
            function($column)
            {
                /** @var Column $column */
                return new Header($column);
            },
            $this->_columns
        );
    }
}

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

hamburgscleanest / data-tables

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DataTable::render() A

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