visualizer / classes / Visualizer / Module / Sources.php

Sources.php in Visualizer – Tables & Charts Manager with Built-in AI Generator 1.4.2.3, at classes/Visualizer/Module/Sources.php

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1	<?php
2
3	// +----------------------------------------------------------------------+
4	// \| Copyright 2013 Madpixels (email : visualizer@madpixels.net) \|
5	// +----------------------------------------------------------------------+
6	// \| This program is free software; you can redistribute it and/or modify \|
7	// \| it under the terms of the GNU General Public License, version 2, as \|
8	// \| published by the Free Software Foundation. \|
9	// \| \|
10	// \| This program is distributed in the hope that it will be useful, \|
11	// \| but WITHOUT ANY WARRANTY; without even the implied warranty of \|
12	// \| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the \|
13	// \| GNU General Public License for more details. \|
14	// \| \|
15	// \| You should have received a copy of the GNU General Public License \|
16	// \| along with this program; if not, write to the Free Software \|
17	// \| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, \|
18	// \| MA 02110-1301 USA \|
19	// +----------------------------------------------------------------------+
20	// \| Author: Eugene Manuilov <eugene@manuilov.org> \|
21	// +----------------------------------------------------------------------+
22
23	/**
24	* Sources module class.
25	*
26	* @category Visualizer
27	* @package Module
28	*
29	* @since 1.1.0
30	*/
31	class Visualizer_Module_Sources extends Visualizer_Module {
32
33	const NAME = __CLASS__;
34
35	/**
36	* The array of fetched sources.
37	*
38	* @since 1.1.0
39	*
40	* @access private
41	* @var array
42	*/
43	private $_sources = array();
44
45	/**
46	* Constructor.
47	*
48	* @since 1.1.0
49	*
50	* @access public
51	* @param Visualizer_Plugin $plugin The instance of the plugin.
52	*/
53	public function __construct( Visualizer_Plugin $plugin ) {
54	parent::__construct( $plugin );
55
56	$this->_addFilter( Visualizer_Plugin::FILTER_GET_CHART_SERIES, 'filterChartSeries', 1, 2 );
57	$this->_addFilter( Visualizer_Plugin::FILTER_GET_CHART_DATA, 'filterChartData', 1, 2 );
58	}
59
60	/**
61	* Returns appropriate source object for a chart.
62	*
63	* @since 1.1.0
64	*
65	* @access private
66	* @param int $chart_id The chart id.
67	* @return Visualizer_Source The source object if source exists, otherwise FALSE.
68	*/
69	private function _getSource( $chart_id ) {
70	if ( !isset( $this->_sources[$chart_id] ) ) {
71	$class = get_post_meta( $chart_id, Visualizer_Plugin::CF_SOURCE, true );
72	if ( !class_exists( $class, true ) ) {
73	return false;
74	}
75
76	$this->_sources[$chart_id] = new $class();
77	}
78
79	return $this->_sources[$chart_id];
80	}
81
82	/**
83	* Filters chart sereis.
84	*
85	* @since 1.1.0
86	*
87	* @access public
88	* @param array $series The array of chart series.
89	* @param int $chart_id The chart id.
90	* @return array The array of filtered series.
91	*/
92	public function filterChartSeries( $series, $chart_id ) {
93	$source = $this->_getSource( $chart_id );
94	if ( !$source ) {
95	return $series;
96	}
97
98	return $source->repopulateSeries( $series, $chart_id );
99	}
100
101	/**
102	* Filters chart data.
103	*
104	* @since 1.1.0
105	*
106	* @access public
107	* @param array $data The array of chart data.
108	* @param int $chart_id The chart id.
109	* @return array The array of filtered data.
110	*/
111	public function filterChartData( $data, $chart_id ) {
112	$source = $this->_getSource( $chart_id );
113	if ( !$source ) {
114	return $data;
115	}
116
117	return $source->repopulateData( $data, $chart_id );
118	}
119
120	}