GoogleChartsExtension::loadLibraries() - Code Metrics - Inspection of "Locale configuration" - cmen/CMENGoogleChartsBundle - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a937a1...6472ae )

by Christophe

created 2016-04-26 11:38 UTC

GoogleChartsExtension::loadLibraries() A

↳ Parent: GoogleChartsExtension

Complexity

Conditions	4
Paths	4

Size

Total Lines	17
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
c	2
b	0
f	0
dl	0
loc	17
rs	9.2
cc	4
eloc	9
nc	4
nop	1

<?php

namespace CMEN\GoogleChartsBundle\Twig;

use CMEN\GoogleChartsBundle\Exception\GoogleChartsException;
use CMEN\GoogleChartsBundle\GoogleCharts\Chart;

/**
 * @author Christophe Meneses
 */
class GoogleChartsExtension extends \Twig_Extension
{
    /**
     * Version of Google Charts used.
     *
     * @var string
     */
    private $version;

    /**
     * Locale to customize currencies, dates, and numbers.
     *
     * @var string
     */
    private $language;


    /**
     * GoogleChartsExtension constructor.
     *
     * @param string $version
     * @param string $language
     */
    public function __construct($version, $language)
    {
        $this->version = $version;
        $this->language = $language;
    }


    /**
     * @inheritdoc
     */
    public function getFunctions()
    {
        return array(
            new \Twig_SimpleFunction('gc_draw', array($this, 'draw'), array('is_safe' => array('html'))),
            new \Twig_SimpleFunction('gc_start', array($this, 'start'), array('is_safe' => array('html'))),
            new \Twig_SimpleFunction('gc_end', array($this, 'end'), array('is_safe' => array('html'))),
            new \Twig_SimpleFunction('gc_event', array($this, 'event'), array('is_safe' => array('html'))),
            new \Twig_SimpleFunction('gc_language', array($this, 'language')),
        );
    }

    /**
     * Returns the Javascript for the beginning of one or more charts.
     *
     * @param Chart|Chart[] $charts Chart instance or array of Chart instance
     * @param string|string[]|null $elementsID HTML element ID or array of HTML elements IDs. Can be null
     *
     * @return string
     */
    public function start($charts, $elementsID = null)
    {
        return $this->checkAndCallGoodMethod('startCharts', $charts, $elementsID);
    }

    /**
     * Returns the Javascript for the end of one or more charts.
     *
     * @param Chart|Chart[] $charts Chart instance or array of Chart instance
     *
     * @return string
     *
     * @throws GoogleChartsException
     */
    public function end($charts)
    {
        if ($charts instanceof Chart) {
            return $this->endCharts(array($charts));

        } elseif (is_array($charts) && !empty($charts)) {
            $this->checkChartType($charts);

            return $this->endCharts($charts);

        } else {
            throw new GoogleChartsException('An instance of Chart or an array of Chart is expected.');
        }
    }

    /**
     * Returns the full Javascript to draw one or more charts.
     *
     * @param Chart|Chart[] $charts Chart instance or array of Chart instance
     * @param string|string[]|null $elementsID HTML element ID or array of HTML elements IDs. Can be null
     *
     * @return string
     */
    public function draw($charts, $elementsID = null)
    {
        return $this->checkAndCallGoodMethod('drawCharts', $charts, $elementsID);
    }

    /**
     * Add an event to a chart.
     *
     * @param Chart $chart A Chart instance
     * @param string $type Type of event
     * @param string $functionName Name of Javascript function
     */
    public function event(Chart $chart, $type, $functionName)
    {
        $chart->getEvents()->addListener($type, $functionName);
    }

    /**
     * Set the locale. Must be called before drawing charts.
     *
     * @link https://developers.google.com/chart/interactive/docs/basic_load_libs#loadwithlocale
     *
     * @param string $language Locale, for example : "fr"
     */
    public function language($language)
    {
        $this->language = $language;
    }

    /**
     * Returns Javascript according to the called method.
     *
     * @param string $name Method's name to be called
     * @param Chart|Chart[] $charts Chart instance or array of Chart instance
     * @param string|string[]|null $elementsID HTML element ID or array of HTML elements IDs. Can be null
     *
     * @return string
     *
     * @throws GoogleChartsException
     */
    private function checkAndCallGoodMethod($name, $charts, $elementsID = null)
    {
        if ($charts instanceof Chart) {
            if ($elementsID) {
                if (!is_string($elementsID)) {
                    throw new GoogleChartsException('A string is expected for HTML element ID.');
                }

                return $this->$name(array($charts), array($elementsID));

            } else {
                return $this->$name(array($charts));
            }

        } elseif (is_array($charts) && !empty($charts)) {
            if ($elementsID !== null) {
                if (count($charts) != count($elementsID)) {
                    throw new GoogleChartsException(
                        'Array charts and array HTML elements ID do not have the same number of element.'
                    );
                }

                $callback = function ($item) {
                    if (!is_string($item)) {
                        throw new GoogleChartsException('A string is expected for HTML element ID.');
                    }
                };
                array_map($callback, $elementsID);
            }

            $this->checkChartType($charts);

            return $this->$name($charts, $elementsID);

        } else {
            throw new GoogleChartsException('An instance of Chart or an array of Chart is expected.');
        }
    }

    /**
     * Checks if all elements of an array are instances of Chart. Throws an exception if not.
     *
     * @param Chart[] $charts
     *
     * @throws GoogleChartsException
     */
    private function checkChartType($charts)
    {
        $callback = function ($item) {
            if (!$item instanceof Chart) {
                throw new GoogleChartsException('An instance of Chart or an array of Chart is expected.');
            }
        };
        array_map($callback, $charts);
    }

    /**
     * Returns Javascript to load libraries.
     *
     * @param string[] $packages List of packages to load
     *
     * @return string
     */
    private function loadLibraries($packages)
    {
        array_walk($packages, function (&$item) {
            $item = '"' . $item . '"';
        });

        ($this->language) ? $language = ', language: "' . $this->language . '"' : $language = '';

        $load = '"' . $this->version . '", {packages:[' . implode(',', $packages) . ']' . $language . '}';

        if ($this->version == '1' || $this->version == '1.1') {
            return 'google.load("visualization", ' . $load . ');';

        } else {
            return 'google.charts.load(' . $load . ');';
        }
    }

    /**
     * Returns the Javascript for the beginning of the callback.
     *
     * @param string $name Name of callback
     *
     * @return string
     */
    private function startCallback($name)
    {
        return "google.setOnLoadCallback($name);
            function $name() {";
    }

    /**
     * Returns the Javascript for the end of the callback.
     *
     * @return string
     */
    private function endCallback()
    {
        return '}';
    }

    /**
     * Returns the Javascript for the beginning of the charts.
     *
     * @param Chart[] $charts Array of Chart instance
     * @param string[]|null $elementsID Array of HTML elements IDs. Can be null
     *
     * @return string
     */
    public function startCharts($charts, $elementsID = null)
    {
        $packages = array();
        $drawChartName = '';
        for ($i = 0; $i < count($charts); $i++) {
for ($i=0; $i<count($array); $i++) { // calls count() on each iteration
}

// Better
for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once
}
            if ($elementsID) {
                $charts[$i]->setElementID($elementsID[$i]);
            }

            if (!in_array($charts[$i]->getPackage(), $packages)) {
                $packages[] = $charts[$i]->getPackage();
            }
            $drawChartName .= $charts[$i]->getElementID();
        }

        $js = $this->loadLibraries($packages);

        $js .= $this->startCallback('drawChart' . ucfirst(md5($drawChartName)));

        foreach ($charts as $chart) {
            $js .= $chart->startDraw();
        }

        return $js;
    }

    /**
     * Returns the Javascript for the end of the charts.
     *
     * @param Chart[] $charts Array of Chart instance
     *
     * @return string
     */
    public function endCharts($charts)
    {
        $js = '';

        foreach ($charts as $chart) {
            $js .= $chart->endDraw();
        }

        $js .= $this->endCallback();

        return $js;
    }

    /**
     * Returns the full Javascript to draw charts.
     *
     * @param Chart[] $charts Array of Chart instance
     * @param string[]|null $elementsID Array of HTML elements IDs. Can be null
     *
     * @return string
     */
    public function drawCharts($charts, $elementsID = null)
    {
        return $this->startCharts($charts, $elementsID) . $this->endCharts($charts);
    }

    /**
     * @inheritdoc
     */
    public function getName()
    {
        return 'cmen_google_charts_extension';
    }
}


1			<?php
2
3			namespace CMEN\GoogleChartsBundle\Twig;
4
5			use CMEN\GoogleChartsBundle\Exception\GoogleChartsException;
6			use CMEN\GoogleChartsBundle\GoogleCharts\Chart;
7
8			/**
9			* @author Christophe Meneses
10			*/
11			class GoogleChartsExtension extends \Twig_Extension
12			{
13			/**
14			* Version of Google Charts used.
15			*
16			* @var string
17			*/
18			private $version;
19
20			/**
21			* Locale to customize currencies, dates, and numbers.
22			*
23			* @var string
24			*/
25			private $language;
26
27
28			/**
29			* GoogleChartsExtension constructor.
30			*
31			* @param string $version
32			* @param string $language
33			*/
34			public function __construct($version, $language)
35			{
36			$this->version = $version;
37			$this->language = $language;
38			}
39
40
41			/**
42			* @inheritdoc
43			*/
44			public function getFunctions()
45			{
46			return array(
47			new \Twig_SimpleFunction('gc_draw', array($this, 'draw'), array('is_safe' => array('html'))),
48			new \Twig_SimpleFunction('gc_start', array($this, 'start'), array('is_safe' => array('html'))),
49			new \Twig_SimpleFunction('gc_end', array($this, 'end'), array('is_safe' => array('html'))),
50			new \Twig_SimpleFunction('gc_event', array($this, 'event'), array('is_safe' => array('html'))),
51			new \Twig_SimpleFunction('gc_language', array($this, 'language')),
52			);
53			}
54
55			/**
56			* Returns the Javascript for the beginning of one or more charts.
57			*
58			* @param Chart\|Chart[] $charts Chart instance or array of Chart instance
59			* @param string\|string[]\|null $elementsID HTML element ID or array of HTML elements IDs. Can be null
60			*
61			* @return string
62			*/
63			public function start($charts, $elementsID = null)
64			{
65			return $this->checkAndCallGoodMethod('startCharts', $charts, $elementsID);
66			}
67
68			/**
69			* Returns the Javascript for the end of one or more charts.
70			*
71			* @param Chart\|Chart[] $charts Chart instance or array of Chart instance
72			*
73			* @return string
74			*
75			* @throws GoogleChartsException
76			*/
77			public function end($charts)
78			{
79			if ($charts instanceof Chart) {
80			return $this->endCharts(array($charts));
81
82			} elseif (is_array($charts) && !empty($charts)) {
83			$this->checkChartType($charts);
84
85			return $this->endCharts($charts);
86
87			} else {
88			throw new GoogleChartsException('An instance of Chart or an array of Chart is expected.');
89			}
90			}
91
92			/**
93			* Returns the full Javascript to draw one or more charts.
94			*
95			* @param Chart\|Chart[] $charts Chart instance or array of Chart instance
96			* @param string\|string[]\|null $elementsID HTML element ID or array of HTML elements IDs. Can be null
97			*
98			* @return string
99			*/
100			public function draw($charts, $elementsID = null)
101			{
102			return $this->checkAndCallGoodMethod('drawCharts', $charts, $elementsID);
103			}
104
105			/**
106			* Add an event to a chart.
107			*
108			* @param Chart $chart A Chart instance
109			* @param string $type Type of event
110			* @param string $functionName Name of Javascript function
111			*/
112			public function event(Chart $chart, $type, $functionName)
113			{
114			$chart->getEvents()->addListener($type, $functionName);
115			}
116
117			/**
118			* Set the locale. Must be called before drawing charts.
119			*
120			* @link https://developers.google.com/chart/interactive/docs/basic_load_libs#loadwithlocale
121			*
122			* @param string $language Locale, for example : "fr"
123			*/
124			public function language($language)
125			{
126			$this->language = $language;
127			}
128
129			/**
130			* Returns Javascript according to the called method.
131			*
132			* @param string $name Method's name to be called
133			* @param Chart\|Chart[] $charts Chart instance or array of Chart instance
134			* @param string\|string[]\|null $elementsID HTML element ID or array of HTML elements IDs. Can be null
135			*
136			* @return string
137			*
138			* @throws GoogleChartsException
139			*/
140			private function checkAndCallGoodMethod($name, $charts, $elementsID = null)
141			{
142			if ($charts instanceof Chart) {
143			if ($elementsID) {
144			if (!is_string($elementsID)) {
145			throw new GoogleChartsException('A string is expected for HTML element ID.');
146			}
147
148			return $this->$name(array($charts), array($elementsID));
149
150			} else {
151			return $this->$name(array($charts));
152			}
153
154			} elseif (is_array($charts) && !empty($charts)) {
155			if ($elementsID !== null) {
156			if (count($charts) != count($elementsID)) {
157			throw new GoogleChartsException(
158			'Array charts and array HTML elements ID do not have the same number of element.'
159			);
160			}
161
162			$callback = function ($item) {
163			if (!is_string($item)) {
164			throw new GoogleChartsException('A string is expected for HTML element ID.');
165			}
166			};
167			array_map($callback, $elementsID);
168			}
169
170			$this->checkChartType($charts);
171
172			return $this->$name($charts, $elementsID);
173
174			} else {
175			throw new GoogleChartsException('An instance of Chart or an array of Chart is expected.');
176			}
177			}
178
179			/**
180			* Checks if all elements of an array are instances of Chart. Throws an exception if not.
181			*
182			* @param Chart[] $charts
183			*
184			* @throws GoogleChartsException
185			*/
186			private function checkChartType($charts)
187			{
188			$callback = function ($item) {
189			if (!$item instanceof Chart) {
190			throw new GoogleChartsException('An instance of Chart or an array of Chart is expected.');
191			}
192			};
193			array_map($callback, $charts);
194			}
195
196			/**
197			* Returns Javascript to load libraries.
198			*
199			* @param string[] $packages List of packages to load
200			*
201			* @return string
202			*/
203			private function loadLibraries($packages)
204			{
205			array_walk($packages, function (&$item) {
206			$item = '"' . $item . '"';
207			});
208
209			($this->language) ? $language = ', language: "' . $this->language . '"' : $language = '';
210
211			$load = '"' . $this->version . '", {packages:[' . implode(',', $packages) . ']' . $language . '}';
212
213			if ($this->version == '1' \|\| $this->version == '1.1') {
214			return 'google.load("visualization", ' . $load . ');';
215
216			} else {
217			return 'google.charts.load(' . $load . ');';
218			}
219			}
220
221			/**
222			* Returns the Javascript for the beginning of the callback.
223			*
224			* @param string $name Name of callback
225			*
226			* @return string
227			*/
228			private function startCallback($name)
229			{
230			return "google.setOnLoadCallback($name);
231			function $name() {";
232			}
233
234			/**
235			* Returns the Javascript for the end of the callback.
236			*
237			* @return string
238			*/
239			private function endCallback()
240			{
241			return '}';
242			}
243
244			/**
245			* Returns the Javascript for the beginning of the charts.
246			*
247			* @param Chart[] $charts Array of Chart instance
248			* @param string[]\|null $elementsID Array of HTML elements IDs. Can be null
249			*
250			* @return string
251			*/
252			public function startCharts($charts, $elementsID = null)
253			{
254			$packages = array();
255			$drawChartName = '';
256			for ($i = 0; $i < count($charts); $i++) {
			0 ignored issues – show Performance Best Practice introduced 2016-01-02 10:56 UTC by Report Bug Copy Issue Report It seems like you are calling the size function `count()` as part of the test condition. You might want to compute the size beforehand, and not on each iteration. If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: for ($i=0; $i<count($array); $i++) { // calls count() on each iteration } // Better for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once } Loading history...
257			if ($elementsID) {
258			$charts[$i]->setElementID($elementsID[$i]);
259			}
260
261			if (!in_array($charts[$i]->getPackage(), $packages)) {
262			$packages[] = $charts[$i]->getPackage();
263			}
264			$drawChartName .= $charts[$i]->getElementID();
265			}
266
267			$js = $this->loadLibraries($packages);
268
269			$js .= $this->startCallback('drawChart' . ucfirst(md5($drawChartName)));
270
271			foreach ($charts as $chart) {
272			$js .= $chart->startDraw();
273			}
274
275			return $js;
276			}
277
278			/**
279			* Returns the Javascript for the end of the charts.
280			*
281			* @param Chart[] $charts Array of Chart instance
282			*
283			* @return string
284			*/
285			public function endCharts($charts)
286			{
287			$js = '';
288
289			foreach ($charts as $chart) {
290			$js .= $chart->endDraw();
291			}
292
293			$js .= $this->endCallback();
294
295			return $js;
296			}
297
298			/**
299			* Returns the full Javascript to draw charts.
300			*
301			* @param Chart[] $charts Array of Chart instance
302			* @param string[]\|null $elementsID Array of HTML elements IDs. Can be null
303			*
304			* @return string
305			*/
306			public function drawCharts($charts, $elementsID = null)
307			{
308			return $this->startCharts($charts, $elementsID) . $this->endCharts($charts);
309			}
310
311			/**
312			* @inheritdoc
313			*/
314			public function getName()
315			{
316			return 'cmen_google_charts_extension';
317			}
318			}
319

cmen / CMENGoogleChartsBundle

Push — master ( a937a1...6472ae )

GoogleChartsExtension::loadLibraries() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

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