Added notification message at library page when allow_url_fopen option is disabled.

Author: Eugene Manuilov

classes/Visualizer/Render/Library.php

@@ -146,8 +146,26 @@ protected function _toHTML() {
 				echo ' <a href="javascript:;" class="add-new-h2">', esc_html__( 'Add New', Visualizer_Plugin::NAME ), '</a>';
 			echo '</h2>';
 
+			$this->_renderMessages();
 			$this->_renderLibrary();
 		echo '</div>';
 	}
 
+	/**
+	 * Renders notification messages if need be.
+	 *
+	 * @since 1.4.2
+	 *
+	 * @access private
+	 */
+	private function _renderMessages() {
+		if ( !filter_var( ini_get( 'allow_url_fopen' ), FILTER_VALIDATE_BOOLEAN ) ) {
+			echo '<div class="updated error">';
+				echo '<p>';
+					printf( esc_html__( '%s option is disabled in your php.ini config. Please, enable it by change its value to 1. This option increases the speed of remote CSV uploading.', Visualizer_Plugin::NAME ), '<b>allow_url_fopen</b>' );
+				echo '</p>';
+			echo '</div>';
+		}
+	}
+
 }

languages/visualizer-en_US.mo

@@ -2,8 +2,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Visualizer\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2014-02-06 11:31+0300\n"
-"PO-Revision-Date: 2014-02-06 11:31+0300\n"
+"POT-Creation-Date: 2014-02-06 12:33+0300\n"
+"PO-Revision-Date: 2014-02-06 12:33+0300\n"
 "Last-Translator: Eugene Manuilov <[email protected]>\n"
 "Language-Team: Eugene Manuilov <[email protected]>\n"
 "Language: en_US\n"
@@ -351,6 +351,15 @@ msgstr "Visualizer Library"
 msgid "Add New"
 msgstr "Add New"
 
+#: classes/Visualizer/Render/Library.php:165
+#, php-format
+msgid ""
+"%s option is disabled in your php.ini config. Please, enable it by change "
+"its value to 1. This option increases the speed of remote CSV uploading."
+msgstr ""
+"%s option is disabled in your php.ini config. Please, enable it by change "
+"its value to 1. This option increases the speed of remote CSV uploading."
+
 #: classes/Visualizer/Render/Templates.php:70
 msgid "Insert"
 msgstr "Insert"

languages/visualizer-en_US.po

@@ -61,6 +61,7 @@ Pay attention that to turn your shortcodes into graphs, your theme has to have `
 = 1.4.2 =
 * Fixed remote CSV uploading issue when allow_url_fopen option is disabled in php.ini
 * Replaced flattr image on widget and added donate link to plugin meta data
+* Added notification message at library page when allow_url_fopen option is disabled
 
 = 1.4.1.1 =
 * Removed CSV parser escape constant to prevent warnings which appears when PHP 5.2.x or less is used