GridFieldQueuedExportButton::downloadExport() - Code Metrics - Inspection of "Initial code commit" - silverstripe/silverstripe-gridfieldqueuedexport - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 906332...92d568 )

by Hamish

created 2016-05-23 21:13 UTC

GridFieldQueuedExportButton::downloadExport() A

↳ Parent: GridFieldQueuedExportButton

Complexity

Conditions	1
Paths	1

Size

Total Lines	8
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	8
rs	9.4285
cc	1
eloc	5
nc	1
nop	2

<?php

/**
 * A button you can add to a GridField to export that GridField as a CSV. Should work with any sized GridField,
 * as the export is done using a queuedjob in the background.
 */
class GridFieldQueuedExportButton implements GridField_HTMLProvider, GridField_ActionProvider, GridField_URLHandler {
namespace YourVendor;

class YourClass { }

    /**
     * @var array Map of a property name on the exported objects, with values being the column title in the CSV file.
     * Note that titles are only used when {@link $csvHasHeader} is set to TRUE.
     */
    protected $exportColumns;

    /**
     * @var string
     */
    protected $csvSeparator = ",";

    /**
     * @var boolean
     */
    protected $csvHasHeader = true;

    /**
     * Fragment to write the button to
     */
    protected $targetFragment;

    /**
     * @param string $targetFragment The HTML fragment to write the button into
     * @param array $exportColumns The columns to include in the export
     */
    public function __construct($targetFragment = "after", $exportColumns = null) {
        $this->targetFragment = $targetFragment;
        $this->exportColumns = $exportColumns;
function aContainsB(array $needle = null, array  $haystack) {
    if (!$needle) {
        return false;
    }

    return array_intersect($haystack, $needle) == $haystack;
}
    }

    /**
     * Place the export button in a <p> tag below the field
     */
    public function getHTMLFragments($gridField) {
        $button = new GridField_FormAction(
            $gridField,
            'export',
            _t('TableListField.CSVEXPORT', 'Export to CSV'),
            'export',
            null
function acceptsInteger($int) { }

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

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        );
        $button->setAttribute('data-icon', 'download-csv');
        $button->addExtraClass('action_batch_export');
        $button->setForm($gridField->getForm());
        return array(
            $this->targetFragment => '<p class="grid-csv-button">' . $button->Field() . '</p>',
        );
    }

    /**
     * This class is an action button
     */
    public function getActions($gridField) {
        return array('export', 'findgridfield');
    }

    public function handleAction(GridField $gridField, $actionName, $arguments, $data) {
        if ($actionName == 'export') {
            return $this->startExport($gridField);
        } else if ($actionName == 'findgridfield') {
            return new GridFieldQueuedExportButton_Response($gridField);
        }
    }

    function startExport($gridField) {

        $job = new GenerateCSVJob();

        // Set the parameters that allow re-discovering this gridfield during background execution
        $job->setGridField($gridField);
        $job->setSession(Controller::curr()->getSession()->get_all());

        // Set the parameters that control CSV exporting
        $job->setSeparator($this->csvSeparator);
        $job->setIncludeHeader($this->csvHasHeader);
        if ($this->exportColumns) $job->setColumns($this->exportColumns);


        // Queue the job
        singleton('QueuedJobService')->queueJob($job);

        // Redirect to the status update page
        return Controller::curr()->redirect($gridField->Link() . '/export/' . $job->getSignature());
    }

    /**
     * This class is also a URL handler
     */
    public function getURLHandlers($gridField) {
        return array(
            'export/$ID'          => 'checkExport',
            'export_download/$ID' => 'downloadExport'
        );
    }

    /**
     * Handle the export, for both the action button and the URL
     */
    public function checkExport($gridField, $request = null) {
        $id = $request->param('ID');
        $job = QueuedJobDescriptor::get()->filter('Signature', $id)->first();

        $controller = $gridField->getForm()->getController();

        $breadcrumbs = $controller->Breadcrumbs(false);
        $breadcrumbs->push(new ArrayData(array(
            'Title' => 'Export CSV',
            'Link'  => false
        )));

        $parents = $controller->Breadcrumbs(false)->items;
        $backlink = array_pop($parents)->Link;

        $data = new ArrayData(array(
            'Backlink'    => $backlink,
            'Breadcrumbs' => $breadcrumbs,
            'GridName'    => $gridField->getname()
        ));

        if ($job->JobStatus == QueuedJob::STATUS_COMPLETE) {
            $data->Link = $gridField->Link() . '/export_download/' . $job->Signature;
        } else if ($job->JobStatus == QueuedJob::STATUS_BROKEN) {
            $data->ErrorMessage = "Sorry, but there was an error exporting the CSV";
        } else if ($job->JobStatus == QueuedJob::STATUS_CANCELLED) {
            $data->ErrorMessage = "This export job was cancelled";
        } else {
            $data->Count = $job->StepsProcessed;
            $data->Total = $job->TotalSteps;
        }

        $return = $data->renderWith('GridFieldQueuedExportButton');

        if ($request->isAjax()) {
            return $return;
        } else {
            return $controller->customise(array('Content' => $return));
        }
    }

    public function downloadExport($gridField, $request = null) {

        $id = $request->param('ID');

        $now = Date("d-m-Y-H-i");
        $fileName = "export-$now.csv";

        return SS_HTTPRequest::send_file(file_get_contents('/tmp/' . $id . '.csv'), $fileName, 'text/csv');
    }

    /**
     * @return array
     */
    public function getExportColumns() {
        return $this->exportColumns;
    }

    /**
     * @param array
     */
    public function setExportColumns($cols) {
        $this->exportColumns = $cols;
        return $this;
    }

    /**
     * @return string
     */
    public function getCsvSeparator() {
        return $this->csvSeparator;
    }

    /**
     * @param string
     */
    public function setCsvSeparator($separator) {
        $this->csvSeparator = $separator;
        return $this;
    }

    /**
     * @return boolean
     */
    public function getCsvHasHeader() {
        return $this->csvHasHeader;
    }

    /**
     * @param boolean
     */
    public function setCsvHasHeader($bool) {
        $this->csvHasHeader = $bool;
        return $this;
    }
}

/**
 * A special type of SS_HTTPResponse that GridFieldQueuedExportButton returns in response to the "findgridfield"
 * action, which includes a reference to the gridfield
 */
class GridFieldQueuedExportButton_Response extends SS_HTTPResponse {
namespace YourVendor;

class YourClass { }
    private $gridField;

    public function __construct(GridField $gridField) {
        $this->gridField = $gridField;
        parent::__construct('', 500);
    }

    public function getGridField() {
        return $this->gridField;
    }
}


1			<?php
2
3			/**
4			* A button you can add to a GridField to export that GridField as a CSV. Should work with any sized GridField,
5			* as the export is done using a queuedjob in the background.
6			*/
7			class GridFieldQueuedExportButton implements GridField_HTMLProvider, GridField_ActionProvider, GridField_URLHandler {
			0 ignored issues – show Coding Style Compatibility introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions. You can fix this by adding a namespace to your class: namespace YourVendor; class YourClass { } When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. Loading history...
8
9			/**
10			* @var array Map of a property name on the exported objects, with values being the column title in the CSV file.
11			* Note that titles are only used when {@link $csvHasHeader} is set to TRUE.
12			*/
13			protected $exportColumns;
14
15			/**
16			* @var string
17			*/
18			protected $csvSeparator = ",";
19
20			/**
21			* @var boolean
22			*/
23			protected $csvHasHeader = true;
24
25			/**
26			* Fragment to write the button to
27			*/
28			protected $targetFragment;
29
30			/**
31			* @param string $targetFragment The HTML fragment to write the button into
32			* @param array $exportColumns The columns to include in the export
33			*/
34			public function __construct($targetFragment = "after", $exportColumns = null) {
35			$this->targetFragment = $targetFragment;
36			$this->exportColumns = $exportColumns;
			0 ignored issues – show Documentation Bug introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report It seems like `$exportColumns` can be `null`. However, the property `$exportColumns` is declared as `array`. Maybe change the type of the property to `array\|null` or add a type check? Our type inference engine has found an assignment of a scalar value (like a string, an integer or null) to a property which is an array. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property. To type hint that a parameter can be either an array or null, you can set a type hint of array and a default value of null. The PHP interpreter will then accept both an array or null for that parameter. function aContainsB(array $needle = null, array $haystack) { if (!$needle) { return false; } return array_intersect($haystack, $needle) == $haystack; } The function can be called with either null or an array for the parameter `$needle` but will only accept an array as `$haystack`. Loading history...
37			}
38
39			/**
40			* Place the export button in a <p> tag below the field
41			*/
42			public function getHTMLFragments($gridField) {
43			$button = new GridField_FormAction(
44			$gridField,
45			'export',
46			_t('TableListField.CSVEXPORT', 'Export to CSV'),
47			'export',
48			null
			0 ignored issues – show Documentation introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report `null` is of type `null`, but the function expects a `array`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
49			);
50			$button->setAttribute('data-icon', 'download-csv');
51			$button->addExtraClass('action_batch_export');
52			$button->setForm($gridField->getForm());
53			return array(
54			$this->targetFragment => '<p class="grid-csv-button">' . $button->Field() . '</p>',
55			);
56			}
57
58			/**
59			* This class is an action button
60			*/
61			public function getActions($gridField) {
62			return array('export', 'findgridfield');
63			}
64
65			public function handleAction(GridField $gridField, $actionName, $arguments, $data) {
66			if ($actionName == 'export') {
67			return $this->startExport($gridField);
68			} else if ($actionName == 'findgridfield') {
69			return new GridFieldQueuedExportButton_Response($gridField);
70			}
71			}
72
73			function startExport($gridField) {
			0 ignored issues – show Best Practice introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report It is generally recommended to explicitly declare the visibility for methods. Adding explicit visibility (`private`, `protected`, or `public`) is generally recommend to communicate to other developers how, and from where this method is intended to be used. Loading history...
74			$job = new GenerateCSVJob();
75
76			// Set the parameters that allow re-discovering this gridfield during background execution
77			$job->setGridField($gridField);
78			$job->setSession(Controller::curr()->getSession()->get_all());
79
80			// Set the parameters that control CSV exporting
81			$job->setSeparator($this->csvSeparator);
82			$job->setIncludeHeader($this->csvHasHeader);
83			if ($this->exportColumns) $job->setColumns($this->exportColumns);
			0 ignored issues – show Bug Best Practice introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report The expression `$this->exportColumns` of type `array` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
84
85			// Queue the job
86			singleton('QueuedJobService')->queueJob($job);
87
88			// Redirect to the status update page
89			return Controller::curr()->redirect($gridField->Link() . '/export/' . $job->getSignature());
90			}
91
92			/**
93			* This class is also a URL handler
94			*/
95			public function getURLHandlers($gridField) {
96			return array(
97			'export/$ID' => 'checkExport',
98			'export_download/$ID' => 'downloadExport'
99			);
100			}
101
102			/**
103			* Handle the export, for both the action button and the URL
104			*/
105			public function checkExport($gridField, $request = null) {
106			$id = $request->param('ID');
107			$job = QueuedJobDescriptor::get()->filter('Signature', $id)->first();
108
109			$controller = $gridField->getForm()->getController();
110
111			$breadcrumbs = $controller->Breadcrumbs(false);
112			$breadcrumbs->push(new ArrayData(array(
113			'Title' => 'Export CSV',
114			'Link' => false
115			)));
116
117			$parents = $controller->Breadcrumbs(false)->items;
118			$backlink = array_pop($parents)->Link;
119
120			$data = new ArrayData(array(
121			'Backlink' => $backlink,
122			'Breadcrumbs' => $breadcrumbs,
123			'GridName' => $gridField->getname()
124			));
125
126			if ($job->JobStatus == QueuedJob::STATUS_COMPLETE) {
127			$data->Link = $gridField->Link() . '/export_download/' . $job->Signature;
128			} else if ($job->JobStatus == QueuedJob::STATUS_BROKEN) {
129			$data->ErrorMessage = "Sorry, but there was an error exporting the CSV";
130			} else if ($job->JobStatus == QueuedJob::STATUS_CANCELLED) {
131			$data->ErrorMessage = "This export job was cancelled";
132			} else {
133			$data->Count = $job->StepsProcessed;
134			$data->Total = $job->TotalSteps;
135			}
136
137			$return = $data->renderWith('GridFieldQueuedExportButton');
138
139			if ($request->isAjax()) {
140			return $return;
141			} else {
142			return $controller->customise(array('Content' => $return));
143			}
144			}
145
146			public function downloadExport($gridField, $request = null) {
			0 ignored issues – show Unused Code introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report The parameter `$gridField` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
147			$id = $request->param('ID');
148
149			$now = Date("d-m-Y-H-i");
150			$fileName = "export-$now.csv";
151
152			return SS_HTTPRequest::send_file(file_get_contents('/tmp/' . $id . '.csv'), $fileName, 'text/csv');
153			}
154
155			/**
156			* @return array
157			*/
158			public function getExportColumns() {
159			return $this->exportColumns;
160			}
161
162			/**
163			* @param array
164			*/
165			public function setExportColumns($cols) {
166			$this->exportColumns = $cols;
167			return $this;
168			}
169
170			/**
171			* @return string
172			*/
173			public function getCsvSeparator() {
174			return $this->csvSeparator;
175			}
176
177			/**
178			* @param string
179			*/
180			public function setCsvSeparator($separator) {
181			$this->csvSeparator = $separator;
182			return $this;
183			}
184
185			/**
186			* @return boolean
187			*/
188			public function getCsvHasHeader() {
189			return $this->csvHasHeader;
190			}
191
192			/**
193			* @param boolean
194			*/
195			public function setCsvHasHeader($bool) {
196			$this->csvHasHeader = $bool;
197			return $this;
198			}
199			}
200
201			/**
202			* A special type of SS_HTTPResponse that GridFieldQueuedExportButton returns in response to the "findgridfield"
203			* action, which includes a reference to the gridfield
204			*/
205			class GridFieldQueuedExportButton_Response extends SS_HTTPResponse {
			0 ignored issues – show Coding Style Compatibility introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report PSR1 recommends that each class should be in its own file to aid autoloaders. Having each class in a dedicated file usually plays nice with PSR autoloaders and is therefore a well established practice. If you use other autoloaders, you might not want to follow this rule. Loading history... Coding Style Compatibility introduced 2016-05-23 21:15 UTC by Report Bug Copy Issue Report PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions. You can fix this by adding a namespace to your class: namespace YourVendor; class YourClass { } When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. Loading history...
206			private $gridField;
207
208			public function __construct(GridField $gridField) {
209			$this->gridField = $gridField;
210			parent::__construct('', 500);
211			}
212
213			public function getGridField() {
214			return $this->gridField;
215			}
216			}
217

silverstripe / silverstripe-gridfieldqueuedexport

Push — master ( 906332...92d568 )

GridFieldQueuedExportButton::downloadExport() A

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