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                <?php namespace EmailLog\Core\UI\Page;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                defined( 'ABSPATH' ) || exit; // Exit if accessed directly.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Settings Page.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This page is displayed only if any add-on has a setting enabled.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @since 2.0.0  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class SettingsPage extends BasePage { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Page slug.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	const PAGE_SLUG = 'email-log-settings';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Specify additional hooks.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @inheritdoc  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function load() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		parent::load();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		add_action( 'admin_init', array( $this, 'register_settings' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Register settings and add setting sections and fields.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function register_settings() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$sections = $this->get_setting_sections();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		foreach ( $sections as $section ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			register_setting(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				self::PAGE_SLUG,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$section->option_name,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				array( 'sanitize_callback' => $section->sanitize_callback )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			add_settings_section(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$section->id,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$section->title,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				$section->callback,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				self::PAGE_SLUG  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			foreach ( $section->fields as $field ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				add_settings_field(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$section->id . '[' . $field->id . ']',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$field->title,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$field->callback,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					self::PAGE_SLUG,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$section->id,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$field->args  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Get a list of setting sections defined.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * An add-on can define a setting section.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return \EmailLog\Core\UI\Setting\SettingSection[] List of defined setting sections.  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	protected function get_setting_sections() { | 
            
            
                                                                        
                            
            
                                    
            
            
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                		/**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		 * Specify the list of setting sections in the settings page.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		 * An add-on can add its own setting section by adding an instance of  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		 * SectionSection to the array.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		 *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		 * @since 2.0.0  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		 * @param \EmailLog\Core\UI\Setting\SettingSection[] List of SettingSections.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		return apply_filters( 'el_setting_sections', array() );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Register page.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function register_page() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$sections = $this->get_setting_sections();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( empty( $sections ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->page = add_submenu_page(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			LogListPage::PAGE_SLUG,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			__( 'Settings', 'email-log' ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			__( 'Settings', 'email-log' ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'manage_options',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			self::PAGE_SLUG,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			array( $this, 'render_page' )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		add_action( "load-{$this->page}", array( $this, 'render_help_tab' ) ); | 
            
                            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Render the page.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * //TODO: Convert these sections into tabs.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function render_page() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		?>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		<div class="wrap">  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			<h1><?php _e( 'Email Log Settings', 'email-log' ); ?></h1>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			<form method="post" action="options.php">  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				<?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				settings_errors();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				settings_fields( self::PAGE_SLUG );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				do_settings_sections( self::PAGE_SLUG );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				submit_button( __( 'Save', 'email-log' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				?>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			</form>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		</div>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		<?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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It is generally a best practice as it is often more readable to use concatenation instead of interpolation for variables inside strings.