AbstractLoader::load() - Code Metrics - Inspection of "Merge branch. Full compatibiity break." - locomotivemtl/charcoal-view - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#1)

by Mathieu

created 2017-01-11 23:51 UTC

AbstractLoader::load() A

↳ Parent: AbstractLoader

Complexity

Conditions	2
Paths	2

Size

Total Lines	9
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	9
rs	9.6666
c	0
b	0
f	0
cc	2
eloc	5
nc	2
nop	1

<?php

namespace Charcoal\View;

// PHP Dependencies
use \InvalidArgumentException;

// PSR-3 (logger) dependencies
use \Psr\Log\LoggerAwareInterface;
use \Psr\Log\LoggerAwareTrait;

// Local namespace dependencies
use \Charcoal\View\LoaderInterface;

/**
 * Base template loader.
 */
abstract class AbstractLoader implements
    LoggerAwareInterface,
    LoaderInterface
{
    use LoggerAwareTrait;

    /**
     * @var string $basePath
     */
    private $basePath = '';

    /**
     * @var string[] $paths
     */
    private $paths = [];

    /**
     * Default constructor, if none is provided by the concrete class implementations.
     *
     * ## Required dependencies
     * - `logger` A PSR-3 logger
     *
     * @param array $data The class dependencies map.
     */
    public function __construct(array $data = null)
    {
        $this->setLogger($data['logger']);
        $this->setBasePath($data['base_path']);
        $this->setPaths($data['paths']);
    }

    /**
     * Load a template content
     *
     * @param string $ident The template ident to load and render.
     * @return string
     */
    public function load($ident)
    {
        $file = $this->findTemplateFile($ident);
        if (!$file) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            return $ident;
        }

        return file_get_contents($file);
    }

    /**
     * @return string
     */
    protected function basePath()
    {
        return $this->basePath;
    }

    /**
     * @see FileLoader::path()
     * @return string[]
     */
    protected function paths()
    {
        return $this->paths;
    }

    /**
     * Get the template file (full path + filename) to load from an ident.
     *
     * This method first generates the filename for an identifier and search for it in all of the loader's paths.
     *
     * @param string $ident The template identifier to load.
     * @throws InvalidArgumentException If the template ident is not a string.
     * @return string|null The full path + filename of the found template. Null if nothing was found.
     */
    protected function findTemplateFile($ident)
// 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 = $request->query->get('page', 1);
    }
}
    {
        if (!is_string($ident)) {
            throw new InvalidArgumentException(
                'Template ident must be a string'
            );
        }

        // Handle dynamic template hack.
        if ($ident === '$widget_template') {
            $ident = (isset($GLOBALS['widget_template']) ? $GLOBALS['widget_template'] : null);
            if (!is_string($ident)) {
                throw new InvalidArgumentException(
                    'Template ident (dynamic, from \$widget_templatee) must be a string'
                );
            }
        }

        $filename = $this->filenameFromIdent($ident);
        $searchPath = $this->paths();
        foreach ($searchPath as $path) {
            $f = realpath($path).'/'.strtolower($filename);
            if (file_exists($f)) {
                return $f;
            }
        }

        return null;
    }

    /**
     * @param string $ident The template identifier to convert to a filename.
     * @return string
     */
    abstract protected function filenameFromIdent($ident);

    /**
     * @param string[] $paths The list of path to add.
     * @return LoaderInterface Chainable
     */
    private function setPaths(array $paths)
    {
        $this->paths = [];

        foreach ($paths as $path) {
            $this->addPath($path);
        }

        return $this;
    }

    /**
     * @param string $basePath The base path to set.
     * @throws InvalidArgumentException If the base path parameter is not a string.
     * @return LoaderInterface Chainable
     */
    private function setBasePath($basePath)
    {
        if (!is_string($basePath)) {
            throw new InvalidArgumentException(
                'Base path must be a string'
            );
        }
        $basePath = realpath($basePath);
        $this->basePath = rtrim($basePath, '/\\').DIRECTORY_SEPARATOR;
        return $this;
    }

    /**
     * @param string $path The path to add to the load.
     * @return LoaderInterface Chainable
     */
    private function addPath($path)
    {
        $this->paths[] = $this->resolvePath($path);

        return $this;
    }

    /**
     * @param string $path The path to resolve.
     * @throws InvalidArgumentException If the path argument is not a string.
     * @return string
     */
    private function resolvePath($path)
    {
        if (!is_string($path)) {
            throw new InvalidArgumentException(
                'Path needs to be a string'
            );
        }

        $basePath = $this->basePath();
        $path = rtrim($path, '/\\').DIRECTORY_SEPARATOR;
        if ($basePath && strpos($path, $basePath) === false) {
            $path = $basePath.$path;
        }

        return $path;
    }
}


1			<?php
2
3			namespace Charcoal\View;
4
5			// PHP Dependencies
6			use \InvalidArgumentException;
7
8			// PSR-3 (logger) dependencies
9			use \Psr\Log\LoggerAwareInterface;
10			use \Psr\Log\LoggerAwareTrait;
11
12			// Local namespace dependencies
13			use \Charcoal\View\LoaderInterface;
14
15			/**
16			* Base template loader.
17			*/
18			abstract class AbstractLoader implements
19			LoggerAwareInterface,
20			LoaderInterface
21			{
22			use LoggerAwareTrait;
23
24			/**
25			* @var string $basePath
26			*/
27			private $basePath = '';
28
29			/**
30			* @var string[] $paths
31			*/
32			private $paths = [];
33
34			/**
35			* Default constructor, if none is provided by the concrete class implementations.
36			*
37			* ## Required dependencies
38			* - `logger` A PSR-3 logger
39			*
40			* @param array $data The class dependencies map.
41			*/
42			public function __construct(array $data = null)
43			{
44			$this->setLogger($data['logger']);
45			$this->setBasePath($data['base_path']);
46			$this->setPaths($data['paths']);
47			}
48
49			/**
50			* Load a template content
51			*
52			* @param string $ident The template ident to load and render.
53			* @return string
54			*/
55			public function load($ident)
56			{
57			$file = $this->findTemplateFile($ident);
58			if (!$file) {
			0 ignored issues – show Bug Best Practice introduced 2017-01-11 23:56 UTC by Report Bug Copy Issue Report The expression `$file` of type `string\|null` is loosely compared to `false`; this is ambiguous if the string can be empty. You might want to explicitly use `=== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
59			return $ident;
60			}
61
62			return file_get_contents($file);
63			}
64
65			/**
66			* @return string
67			*/
68			protected function basePath()
69			{
70			return $this->basePath;
71			}
72
73			/**
74			* @see FileLoader::path()
75			* @return string[]
76			*/
77			protected function paths()
78			{
79			return $this->paths;
80			}
81
82			/**
83			* Get the template file (full path + filename) to load from an ident.
84			*
85			* This method first generates the filename for an identifier and search for it in all of the loader's paths.
86			*
87			* @param string $ident The template identifier to load.
88			* @throws InvalidArgumentException If the template ident is not a string.
89			* @return string\|null The full path + filename of the found template. Null if nothing was found.
90			*/
91			protected function findTemplateFile($ident)
			0 ignored issues – show Coding Style introduced 2017-01-11 23:56 UTC by Report Bug Copy Issue Report `findTemplateFile` uses the super-global variable `$GLOBALS` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($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 = $request->query->get('page', 1); } } Loading history...
92			{
93			if (!is_string($ident)) {
94			throw new InvalidArgumentException(
95			'Template ident must be a string'
96			);
97			}
98
99			// Handle dynamic template hack.
100			if ($ident === '$widget_template') {
101			$ident = (isset($GLOBALS['widget_template']) ? $GLOBALS['widget_template'] : null);
102			if (!is_string($ident)) {
103			throw new InvalidArgumentException(
104			'Template ident (dynamic, from \$widget_templatee) must be a string'
105			);
106			}
107			}
108
109			$filename = $this->filenameFromIdent($ident);
110			$searchPath = $this->paths();
111			foreach ($searchPath as $path) {
112			$f = realpath($path).'/'.strtolower($filename);
113			if (file_exists($f)) {
114			return $f;
115			}
116			}
117
118			return null;
119			}
120
121			/**
122			* @param string $ident The template identifier to convert to a filename.
123			* @return string
124			*/
125			abstract protected function filenameFromIdent($ident);
126
127			/**
128			* @param string[] $paths The list of path to add.
129			* @return LoaderInterface Chainable
130			*/
131			private function setPaths(array $paths)
132			{
133			$this->paths = [];
134
135			foreach ($paths as $path) {
136			$this->addPath($path);
137			}
138
139			return $this;
140			}
141
142			/**
143			* @param string $basePath The base path to set.
144			* @throws InvalidArgumentException If the base path parameter is not a string.
145			* @return LoaderInterface Chainable
146			*/
147			private function setBasePath($basePath)
148			{
149			if (!is_string($basePath)) {
150			throw new InvalidArgumentException(
151			'Base path must be a string'
152			);
153			}
154			$basePath = realpath($basePath);
155			$this->basePath = rtrim($basePath, '/\\').DIRECTORY_SEPARATOR;
156			return $this;
157			}
158
159			/**
160			* @param string $path The path to add to the load.
161			* @return LoaderInterface Chainable
162			*/
163			private function addPath($path)
164			{
165			$this->paths[] = $this->resolvePath($path);
166
167			return $this;
168			}
169
170			/**
171			* @param string $path The path to resolve.
172			* @throws InvalidArgumentException If the path argument is not a string.
173			* @return string
174			*/
175			private function resolvePath($path)
176			{
177			if (!is_string($path)) {
178			throw new InvalidArgumentException(
179			'Path needs to be a string'
180			);
181			}
182
183			$basePath = $this->basePath();
184			$path = rtrim($path, '/\\').DIRECTORY_SEPARATOR;
185			if ($basePath && strpos($path, $basePath) === false) {
186			$path = $basePath.$path;
187			}
188
189			return $path;
190			}
191			}
192

locomotivemtl / charcoal-view

Pull Request — master (#1)

AbstractLoader::load() A

Complexity

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