MenuCache::clearfieldcache() - Code Metrics - sunnysideup/silverstripe-menucache - Measure and Improve Code Quality continuously with Scrutinizer

MenuCache::clearfieldcache() C
last analyzed 2018-03-20 01:20 UTC

↳ Parent: MenuCache

Complexity

Conditions	8
Paths	4

Size

Total Lines	29
Code Lines	22

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	29
rs	5.3846
c	0
b	0
f	0
cc	8
eloc	22
nc	4
nop	1

<?php

class MenuCache extends DataExtension
namespace YourVendor;

class YourClass { }
{
    /**
    * fields are typicall header, menu, footer
    */

    private static $db = array(

        "CachedSection0" => "HTMLText",
        "CachedSection1" => "HTMLText",
        "CachedSection2" => "HTMLText",
        "CachedSection3" => "HTMLText",
        "CachedSection4" => "HTMLText"
    );

    private static $fields = array(
        0 => "Header",
        1 => "Menu",
        2 => "Footer",
        3 => "LayoutSection",
        4 => "other",
    );

    /* sets the cache number used for getting the "$Layout" of the individual page */
    private static $layout_field = 3;


    private static $tables_to_clear = array("SiteTree", "SiteTree_Live", "SiteTree_versions");


    public static function field_maker($fieldNumber)
    {
        return "CachedSection".$fieldNumber;
    }

    public static function fields_exists($number)
    {
        return (isset(self::$fields[$number]));
    }

    public function updateCMSFields(FieldList $fields)
    {
        $fields->addFieldToTab("Root.Caching", new CheckboxField("DoNotCacheMenu", "Do Not Cache Menu"));
        $fields->addFieldToTab("Root.Caching", new LiteralField("ClearCache", "<a href=\"".$this->owner->Link("clearallfieldcaches")."\">clear cache (do this at the end of all edit sessions)</a>"));
        return $fields;
    }

    //-------------------- menu cache ------------------ ------------------ ------------------ ------------------ ------------------ ------------------

    public function clearfieldcache($showoutput = false)
    {
        $fieldsToClear = array();
        $fieldsForEach = Config::inst()->get("MenuCache", "fields");
        foreach ($fieldsForEach as $key => $field) {
            $fieldName = self::field_maker($key);
            $fieldsToClear[] = "\"".$fieldName."\" = ''";
        }
        if (count($fieldsToClear)) {
            $tablesForEach = Config::inst()->get("MenuCache", "tables_to_clear");
            foreach ($tablesForEach as $table) {
$collection = json_decode($data, true);
if ( ! is_array($collection)) {
    throw new \RuntimeException('$collection must be an array.');
}

foreach ($collection as $item) { /** ... */ }
                $msg = '';
                $sql = "UPDATE \"".$table."\" SET ".implode(", ", $fieldsToClear);
                if (Controller::curr()->getRequest()->param("ID") == "days" && $days = intval(Controller::curr()->getRequest()->param("OtherID"))) {
                    $sql .= ' WHERE \"LastEdited\" > ( NOW() - INTERVAL '.$days.' DAY )';
                    $msg .= ', created before the last '.$days.' days';
                } elseif (Controller::curr()->getRequest()->param("ID") == "thispage") {
                    $sql .= " WHERE  \"".$table."\".\"ID\" = ".$this->owner->ID;
                    $msg .= ', for page with ID = '.$this->owner->ID;
                }
                if ($showoutput) {
                    DB::alteration_message("Deleting cached data from $table, ".$msg);
                    debug::show($sql);
                }
                DB::query($sql);
            }
        }
        return array();
    }

    //add this function to your page class if needed
    public function onBeforeWrite()
    {
        //$this->clearfieldcache(); // technically this should be done, but it puts a lot of strain on saving so instead we encourage people to use ?flush=1

        parent::onBeforeWrite();
    }
}

class MenuCache_Controller extends Extension
namespace YourVendor;

class YourClass { }
{
    private static $allowed_actions = array("showcachedfield","clearfieldcache","showuncachedfield", "clearallfieldcaches");


    protected function getHtml($fieldNumber)

    {
        $layoutField = Config::inst()->get("MenuCache", "layout_field");
        if ($layoutField == $fieldNumber) {
            $className = $this->owner->ClassName;
            if ("Page" == $className) {
                $className = "PageCached";
            }
            return $this->owner->renderWith(array($className, "PageCached"));
        } else {
            return $this->owner->renderWith('UsedToCreateCache'.$fieldNumber);
        }
    }

    public function CachedField($fieldNumber)
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
    {
        $fieldName = MenuCache::field_maker($fieldNumber);
        if (isset($_REQUEST["flush"])) {
            $this->owner->clearfieldcache();
        }
        if (!(MenuCache::fields_exists($fieldNumber))) {
            user_error("$fieldName is not a field that can be cached", E_USER_ERROR);
        } else {
            if (!$this->owner->$fieldName || $this->owner->DoNotCacheMenu) {
                $fieldID = $fieldNumber;
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
                $content = $this->getHtml($fieldNumber);
                $sql = "Update \"SiteTree_Live\" Set \"".$fieldName."\" = '".$this->compressAndPrepareHTML($content)."' WHERE \"ID\" = ".$this->owner->ID." LIMIT 1";
                DB::query($sql);
                return $content;
            } else {
                return $this->owner->$fieldName;
            }
        }
    }


    private function compressAndPrepareHTML($html)
    {
        $pat[0] = "/^\s+/";
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
        $pat[1] = "/\s{2,}/";
        $pat[2] = "/\s+\$/";
        $rep[0] = "";
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
        $rep[1] = " ";
        $rep[2] = "";
        $html = preg_replace($pat, $rep, $html);
        $html = trim($html);
        return addslashes($html);
    }



    public function showcachedfield($httpRequest = null)

    {
        $fieldNumber = $httpRequest->param("ID");
        return $this->getHtml($fieldNumber);
    }

    public function showuncachedfield($httpRequest = null)

    {
        $this->owner->clearfieldcache();
        return $this->showcachedfield($httpRequest);
    }

    public function clearallfieldcaches($httpRequest = null)

    {
        $this->owner->clearfieldcache(true);
        return 'fields have been cleared, <a href="/?flush=all">click to continue...</a>';
    }
}


1			<?php
2
3			class MenuCache extends DataExtension
			0 ignored issues – show Coding Style Compatibility introduced 2017-01-03 01:22 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...
4			{
5			/**
6			* fields are typicall header, menu, footer
7			*/
8
9			private static $db = array(
			0 ignored issues – show Unused Code introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report The property `$db` is not used and could be removed. This check marks private properties in classes that are never used. Those properties can be removed. Loading history...
10			"CachedSection0" => "HTMLText",
11			"CachedSection1" => "HTMLText",
12			"CachedSection2" => "HTMLText",
13			"CachedSection3" => "HTMLText",
14			"CachedSection4" => "HTMLText"
15			);
16
17			private static $fields = array(
18			0 => "Header",
19			1 => "Menu",
20			2 => "Footer",
21			3 => "LayoutSection",
22			4 => "other",
23			);
24
25			/* sets the cache number used for getting the "$Layout" of the individual page */
26			private static $layout_field = 3;
			0 ignored issues – show Unused Code introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report The property `$layout_field` is not used and could be removed. This check marks private properties in classes that are never used. Those properties can be removed. Loading history...
27
28			private static $tables_to_clear = array("SiteTree", "SiteTree_Live", "SiteTree_versions");
			0 ignored issues – show Unused Code introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report The property `$tables_to_clear` is not used and could be removed. This check marks private properties in classes that are never used. Those properties can be removed. Loading history...
29
30			public static function field_maker($fieldNumber)
31			{
32			return "CachedSection".$fieldNumber;
33			}
34
35			public static function fields_exists($number)
36			{
37			return (isset(self::$fields[$number]));
38			}
39
40			public function updateCMSFields(FieldList $fields)
41			{
42			$fields->addFieldToTab("Root.Caching", new CheckboxField("DoNotCacheMenu", "Do Not Cache Menu"));
43			$fields->addFieldToTab("Root.Caching", new LiteralField("ClearCache", "<a href=\"".$this->owner->Link("clearallfieldcaches")."\">clear cache (do this at the end of all edit sessions)</a>"));
44			return $fields;
45			}
46
47			//-------------------- menu cache ------------------ ------------------ ------------------ ------------------ ------------------ ------------------
48
49			public function clearfieldcache($showoutput = false)
50			{
51			$fieldsToClear = array();
52			$fieldsForEach = Config::inst()->get("MenuCache", "fields");
53			foreach ($fieldsForEach as $key => $field) {
54			$fieldName = self::field_maker($key);
55			$fieldsToClear[] = "\"".$fieldName."\" = ''";
56			}
57			if (count($fieldsToClear)) {
58			$tablesForEach = Config::inst()->get("MenuCache", "tables_to_clear");
59			foreach ($tablesForEach as $table) {
			0 ignored issues – show Bug introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report The expression `$tablesForEach` of type `array\|integer\|double\|string\|boolean` is not guaranteed to be traversable. How about adding an additional type check? There are different options of fixing this problem. If you want to be on the safe side, you can add an additional type-check: $collection = json_decode($data, true); if ( ! is_array($collection)) { throw new \RuntimeException('$collection must be an array.'); } foreach ($collection as $item) { /** ... / } If you are sure that the expression is traversable, you might want to add a doc comment cast* to improve IDE auto-completion and static analysis: /** @var array $collection / $collection = json_decode($data, true); foreach ($collection as $item) { /* .. / } Mark the issue as a false-positive*: Just hover the remove button, in the top-right corner of this issue for more options. Loading history...
60			$msg = '';
61			$sql = "UPDATE \"".$table."\" SET ".implode(", ", $fieldsToClear);
62			if (Controller::curr()->getRequest()->param("ID") == "days" && $days = intval(Controller::curr()->getRequest()->param("OtherID"))) {
63			$sql .= ' WHERE \"LastEdited\" > ( NOW() - INTERVAL '.$days.' DAY )';
64			$msg .= ', created before the last '.$days.' days';
65			} elseif (Controller::curr()->getRequest()->param("ID") == "thispage") {
66			$sql .= " WHERE \"".$table."\".\"ID\" = ".$this->owner->ID;
67			$msg .= ', for page with ID = '.$this->owner->ID;
68			}
69			if ($showoutput) {
70			DB::alteration_message("Deleting cached data from $table, ".$msg);
71			debug::show($sql);
72			}
73			DB::query($sql);
74			}
75			}
76			return array();
77			}
78
79			//add this function to your page class if needed
80			public function onBeforeWrite()
81			{
82			//$this->clearfieldcache(); // technically this should be done, but it puts a lot of strain on saving so instead we encourage people to use ?flush=1
			0 ignored issues – show Unused Code Comprehensibility introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report `72%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
83			parent::onBeforeWrite();
84			}
85			}
86
87			class MenuCache_Controller extends Extension
			0 ignored issues – show Coding Style Compatibility introduced 2017-01-03 01:22 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 2017-01-03 01:22 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...
88			{
89			private static $allowed_actions = array("showcachedfield","clearfieldcache","showuncachedfield", "clearallfieldcaches");
			0 ignored issues – show Comprehensibility introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report Consider using a different property name as you override a private property of the parent class. Loading history... Unused Code introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report The property `$allowed_actions` is not used and could be removed. This check marks private properties in classes that are never used. Those properties can be removed. Loading history...
90
91			protected function getHtml($fieldNumber)
			0 ignored issues – show Documentation introduced 2018-02-21 04:07 UTC by Report Bug Copy Issue Report The return type could not be reliably inferred; please add a `@return` annotation. Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a `@return` annotation as described here. Loading history...
92			{
93			$layoutField = Config::inst()->get("MenuCache", "layout_field");
94			if ($layoutField == $fieldNumber) {
95			$className = $this->owner->ClassName;
96			if ("Page" == $className) {
97			$className = "PageCached";
98			}
99			return $this->owner->renderWith(array($className, "PageCached"));
100			} else {
101			return $this->owner->renderWith('UsedToCreateCache'.$fieldNumber);
102			}
103			}
104
105			public function CachedField($fieldNumber)
			0 ignored issues – show Documentation introduced 2018-02-21 04:07 UTC by Report Bug Copy Issue Report The return type could not be reliably inferred; please add a `@return` annotation. Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a `@return` annotation as described here. Loading history... Coding Style introduced 2018-02-21 04:07 UTC by Report Bug Copy Issue Report `CachedField` uses the super-global variable `$_REQUEST` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
106			{
107			$fieldName = MenuCache::field_maker($fieldNumber);
108			if (isset($_REQUEST["flush"])) {
109			$this->owner->clearfieldcache();
110			}
111			if (!(MenuCache::fields_exists($fieldNumber))) {
112			user_error("$fieldName is not a field that can be cached", E_USER_ERROR);
113			} else {
114			if (!$this->owner->$fieldName \|\| $this->owner->DoNotCacheMenu) {
115			$fieldID = $fieldNumber;
			0 ignored issues – show Unused Code introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report `$fieldID` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
116			$content = $this->getHtml($fieldNumber);
117			$sql = "Update \"SiteTree_Live\" Set \"".$fieldName."\" = '".$this->compressAndPrepareHTML($content)."' WHERE \"ID\" = ".$this->owner->ID." LIMIT 1";
118			DB::query($sql);
119			return $content;
120			} else {
121			return $this->owner->$fieldName;
122			}
123			}
124			}
125
126
127			private function compressAndPrepareHTML($html)
128			{
129			$pat[0] = "/^\s+/";
			0 ignored issues – show Coding Style Comprehensibility introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report `$pat` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$pat = array();` before regardless. Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code. Let’s take a look at an example: foreach ($collection as $item) { $myArray['foo'] = $item->getFoo(); if ($item->hasBar()) { $myArray['bar'] = $item->getBar(); } // do something with $myArray } As you can see in this example, the array `$myArray` is initialized the first time when the foreach loop is entered. You can also see that the value of the `bar` key is only written conditionally; thus, its value might result from a previous iteration. This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization `$myArray = array()` either outside or inside the foreach loop. Loading history...
130			$pat[1] = "/\s{2,}/";
131			$pat[2] = "/\s+\$/";
132			$rep[0] = "";
			0 ignored issues – show Coding Style Comprehensibility introduced 2017-01-03 01:22 UTC by Report Bug Copy Issue Report `$rep` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$rep = array();` before regardless. Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code. Let’s take a look at an example: foreach ($collection as $item) { $myArray['foo'] = $item->getFoo(); if ($item->hasBar()) { $myArray['bar'] = $item->getBar(); } // do something with $myArray } As you can see in this example, the array `$myArray` is initialized the first time when the foreach loop is entered. You can also see that the value of the `bar` key is only written conditionally; thus, its value might result from a previous iteration. This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization `$myArray = array()` either outside or inside the foreach loop. Loading history...
133			$rep[1] = " ";
134			$rep[2] = "";
135			$html = preg_replace($pat, $rep, $html);
136			$html = trim($html);
137			return addslashes($html);
138			}
139
140
141
142			public function showcachedfield($httpRequest = null)
			0 ignored issues – show Documentation introduced 2018-02-21 04:07 UTC by Report Bug Copy Issue Report The return type could not be reliably inferred; please add a `@return` annotation. Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a `@return` annotation as described here. Loading history...
143			{
144			$fieldNumber = $httpRequest->param("ID");
145			return $this->getHtml($fieldNumber);
146			}
147
148			public function showuncachedfield($httpRequest = null)
			0 ignored issues – show Documentation introduced 2018-02-21 04:07 UTC by Report Bug Copy Issue Report The return type could not be reliably inferred; please add a `@return` annotation. Our type inference engine in quite powerful, but sometimes the code does not provide enough clues to go by. In these cases we request you to add a `@return` annotation as described here. Loading history...
149			{
150			$this->owner->clearfieldcache();
151			return $this->showcachedfield($httpRequest);
152			}
153
154			public function clearallfieldcaches($httpRequest = null)
			0 ignored issues – show Unused Code introduced 2018-02-21 04:07 UTC by Report Bug Copy Issue Report The parameter `$httpRequest` 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...
155			{
156			$this->owner->clearfieldcache(true);
157			return 'fields have been cleared, <a href="/?flush=all">click to continue...</a>';
158			}
159			}
160

sunnysideup / silverstripe-menucache

MenuCache::clearfieldcache() C last analyzed 2018-03-20 01:20 UTC

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Duplication

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MenuCache::clearfieldcache() C
last analyzed 2018-03-20 01:20 UTC