AyeCode / invoicing

includes/admin/subscriptions.php

Indentation +433 added lines, -433 removed lines

@@ -14,7 +14,7 @@ 
  */
 function wpinv_subscriptions_page() {
 
-	?>
+    ?>
 
 	<div class="wrap">
 		<h1><?php echo esc_html( get_admin_page_title() ); ?></h1>
@@ -22,27 +22,27 @@ 
 
 			<?php
 
-				// Verify user permissions.
-				if ( ! wpinv_current_user_can_manage_invoicing() ) {
+                // Verify user permissions.
+                if ( ! wpinv_current_user_can_manage_invoicing() ) {
 
-					echo aui()->alert(
-						array(
-							'type'    => 'danger',
-							'content' => __( 'You are not permitted to view this page.', 'invoicing' ),
-						)
-					);
+                    echo aui()->alert(
+                        array(
+                            'type'    => 'danger',
+                            'content' => __( 'You are not permitted to view this page.', 'invoicing' ),
+                        )
+                    );
 
-				} else if ( ! empty( $_GET['id'] ) && is_numeric( $_GET['id'] ) ) {
+                } else if ( ! empty( $_GET['id'] ) && is_numeric( $_GET['id'] ) ) {
 
-					// Display a single subscription.
-					wpinv_recurring_subscription_details();
-				} else {
+                    // Display a single subscription.
+                    wpinv_recurring_subscription_details();
+                } else {
 
-					// Display a list of available subscriptions.
-					getpaid_print_subscriptions_list();
-				}
+                    // Display a list of available subscriptions.
+                    getpaid_print_subscriptions_list();
+                }
 
-			?>
+            ?>
 
 		</div>
 	</div>
@@ -59,10 +59,10 @@ 
  */
 function getpaid_print_subscriptions_list() {
 
-	$subscribers_table = new WPInv_Subscriptions_List_Table();
-	$subscribers_table->prepare_items();
+    $subscribers_table = new WPInv_Subscriptions_List_Table();
+    $subscribers_table->prepare_items();
 
-	?>
+    ?>
 	<?php $subscribers_table->views(); ?>
 	<form id="subscribers-filter" class="bsui" method="get">
 		<input type="hidden" name="page" value="wpinv-subscriptions" />
@@ -81,41 +81,41 @@ 
  */
 function wpinv_recurring_subscription_details() {
 
-	// Fetch the subscription.
-	$sub = new WPInv_Subscription( (int) $_GET['id'] );
-	if ( ! $sub->exists() ) {
+    // Fetch the subscription.
+    $sub = new WPInv_Subscription( (int) $_GET['id'] );
+    if ( ! $sub->exists() ) {
 
-		echo aui()->alert(
-			array(
-				'type'    => 'danger',
-				'content' => __( 'Subscription not found.', 'invoicing' ),
-			)
-		);
+        echo aui()->alert(
+            array(
+                'type'    => 'danger',
+                'content' => __( 'Subscription not found.', 'invoicing' ),
+            )
+        );
 
-		return;
-	}
+        return;
+    }
 
-	// Use metaboxes to display the subscription details.
-	add_meta_box( 'getpaid_admin_subscription_details_metabox', __( 'Subscription Details', 'invoicing' ), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal', 'high' );
-	add_meta_box( 'getpaid_admin_subscription_update_metabox', __( 'Change Status', 'invoicing' ), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side' );
+    // Use metaboxes to display the subscription details.
+    add_meta_box( 'getpaid_admin_subscription_details_metabox', __( 'Subscription Details', 'invoicing' ), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal', 'high' );
+    add_meta_box( 'getpaid_admin_subscription_update_metabox', __( 'Change Status', 'invoicing' ), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side' );
 
-	$subscription_id     = $sub->get_id();
-	$subscription_groups = getpaid_get_invoice_subscription_groups( $sub->get_parent_invoice_id() );
-	$subscription_group  = wp_list_filter( $subscription_groups, compact( 'subscription_id' ) );
+    $subscription_id     = $sub->get_id();
+    $subscription_groups = getpaid_get_invoice_subscription_groups( $sub->get_parent_invoice_id() );
+    $subscription_group  = wp_list_filter( $subscription_groups, compact( 'subscription_id' ) );
 
-	if ( 1 < count( $subscription_groups ) ) {
-		add_meta_box( 'getpaid_admin_subscription_related_subscriptions_metabox', __( 'Related Subscriptions', 'invoicing' ), 'getpaid_admin_subscription_related_subscriptions_metabox', get_current_screen(), 'advanced' );
-	}
+    if ( 1 < count( $subscription_groups ) ) {
+        add_meta_box( 'getpaid_admin_subscription_related_subscriptions_metabox', __( 'Related Subscriptions', 'invoicing' ), 'getpaid_admin_subscription_related_subscriptions_metabox', get_current_screen(), 'advanced' );
+    }
 
-	if ( ! empty( $subscription_group ) ) {
-		add_meta_box( 'getpaid_admin_subscription_item_details_metabox', __( 'Subscription Items', 'invoicing' ), 'getpaid_admin_subscription_item_details_metabox', get_current_screen(), 'normal', 'low' );
-	}
+    if ( ! empty( $subscription_group ) ) {
+        add_meta_box( 'getpaid_admin_subscription_item_details_metabox', __( 'Subscription Items', 'invoicing' ), 'getpaid_admin_subscription_item_details_metabox', get_current_screen(), 'normal', 'low' );
+    }
 
-	add_meta_box( 'getpaid_admin_subscription_invoice_details_metabox', __( 'Related Invoices', 'invoicing' ), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced' );
+    add_meta_box( 'getpaid_admin_subscription_invoice_details_metabox', __( 'Related Invoices', 'invoicing' ), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced' );
 
-	do_action( 'getpaid_admin_single_subscription_register_metabox', $sub );
+    do_action( 'getpaid_admin_single_subscription_register_metabox', $sub );
 
-	?>
+    ?>
 
 		<form method="post" action="<?php echo admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $sub->get_id() ) ); ?>">
 
@@ -155,45 +155,45 @@ 
  */
 function getpaid_admin_subscription_details_metabox( $sub ) {
 
-	// Subscription items.
-	$subscription_group = getpaid_get_invoice_subscription_group( $sub->get_parent_invoice_id(), $sub->get_id() );
-	$items_count        = empty( $subscription_group ) ? 1 : count( $subscription_group['items'] );
-
-	// Prepare subscription detail columns.
-	$fields = apply_filters(
-		'getpaid_subscription_admin_page_fields',
-		array(
-			'subscription'   => __( 'Subscription', 'invoicing' ),
-			'customer'       => __( 'Customer', 'invoicing' ),
-			'amount'         => __( 'Amount', 'invoicing' ),
-			'start_date'     => __( 'Start Date', 'invoicing' ),
-			'renews_on'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'       => __( 'Payments', 'invoicing' ),
-			'item'           => _n( 'Item', 'Items', $items_count,  'invoicing' ),
-			'gateway'        => __( 'Payment Method', 'invoicing' ),
-			'profile_id'     => __( 'Profile ID', 'invoicing' ),
-			'status'         => __( 'Status', 'invoicing' ),
-		)
-	);
-
-	if ( ! $sub->is_active() ) {
-
-		if ( isset( $fields['renews_on'] ) ) {
-			unset( $fields['renews_on'] );
-		}
-
-		if ( isset( $fields['gateway'] ) ) {
-			unset( $fields['gateway'] );
-		}
-
-	}
-
-	$profile_id = $sub->get_profile_id();
-	if ( empty( $profile_id ) && isset( $fields['profile_id'] ) ) {
-		unset( $fields['profile_id'] );
-	}
-
-	?>
+    // Subscription items.
+    $subscription_group = getpaid_get_invoice_subscription_group( $sub->get_parent_invoice_id(), $sub->get_id() );
+    $items_count        = empty( $subscription_group ) ? 1 : count( $subscription_group['items'] );
+
+    // Prepare subscription detail columns.
+    $fields = apply_filters(
+        'getpaid_subscription_admin_page_fields',
+        array(
+            'subscription'   => __( 'Subscription', 'invoicing' ),
+            'customer'       => __( 'Customer', 'invoicing' ),
+            'amount'         => __( 'Amount', 'invoicing' ),
+            'start_date'     => __( 'Start Date', 'invoicing' ),
+            'renews_on'      => __( 'Next Payment', 'invoicing' ),
+            'renewals'       => __( 'Payments', 'invoicing' ),
+            'item'           => _n( 'Item', 'Items', $items_count,  'invoicing' ),
+            'gateway'        => __( 'Payment Method', 'invoicing' ),
+            'profile_id'     => __( 'Profile ID', 'invoicing' ),
+            'status'         => __( 'Status', 'invoicing' ),
+        )
+    );
+
+    if ( ! $sub->is_active() ) {
+
+        if ( isset( $fields['renews_on'] ) ) {
+            unset( $fields['renews_on'] );
+        }
+
+        if ( isset( $fields['gateway'] ) ) {
+            unset( $fields['gateway'] );
+        }
+
+    }
+
+    $profile_id = $sub->get_profile_id();
+    if ( empty( $profile_id ) && isset( $fields['profile_id'] ) ) {
+        unset( $fields['profile_id'] );
+    }
+
+    ?>
 
 		<table class="table table-borderless" style="font-size: 14px;">
 			<tbody>
@@ -227,20 +227,20 @@ 
  */
 function getpaid_admin_subscription_metabox_display_customer( $subscription ) {
 
-	$username = __( '(Missing User)', 'invoicing' );
+    $username = __( '(Missing User)', 'invoicing' );
 
-	$user = get_userdata( $subscription->get_customer_id() );
-	if ( $user ) {
+    $user = get_userdata( $subscription->get_customer_id() );
+    if ( $user ) {
 
-		$username = sprintf(
-			'<a href="user-edit.php?user_id=%s">%s</a>',
-			absint( $user->ID ),
-			! empty( $user->display_name ) ? esc_html( $user->display_name ) : sanitize_email( $user->user_email )
-		);
+        $username = sprintf(
+            '<a href="user-edit.php?user_id=%s">%s</a>',
+            absint( $user->ID ),
+            ! empty( $user->display_name ) ? esc_html( $user->display_name ) : sanitize_email( $user->user_email )
+        );
 
-	}
+    }
 
-	echo  $username;
+    echo  $username;
 }
 add_action( 'getpaid_subscription_admin_display_customer', 'getpaid_admin_subscription_metabox_display_customer' );
 
@@ -250,8 +250,8 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_amount( $subscription ) {
-	$amount    = wp_kses_post( getpaid_get_formatted_subscription_amount( $subscription ) );
-	echo "<span>$amount</span>";
+    $amount    = wp_kses_post( getpaid_get_formatted_subscription_amount( $subscription ) );
+    echo "<span>$amount</span>";
 }
 add_action( 'getpaid_subscription_admin_display_amount', 'getpaid_admin_subscription_metabox_display_amount' );
 
@@ -262,11 +262,11 @@ 
  */
 function getpaid_admin_subscription_metabox_display_id( $subscription ) {
 
-	printf(
-		'<a href="%s">#%s</a>',
-		esc_url( admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $subscription->get_id() ) ) ),
-		absint( $subscription->get_id() )
-	);
+    printf(
+        '<a href="%s">#%s</a>',
+        esc_url( admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $subscription->get_id() ) ) ),
+        absint( $subscription->get_id() )
+    );
 
 }
 add_action( 'getpaid_subscription_admin_display_subscription', 'getpaid_admin_subscription_metabox_display_id' );
@@ -277,7 +277,7 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_start_date( $subscription ) {
-	echo getpaid_format_date_value( $subscription->get_date_created() );
+    echo getpaid_format_date_value( $subscription->get_date_created() );
 }
 add_action( 'getpaid_subscription_admin_display_start_date', 'getpaid_admin_subscription_metabox_display_start_date' );
 
@@ -287,7 +287,7 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_renews_on( $subscription ) {
-	echo getpaid_format_date_value( $subscription->get_expiration() );
+    echo getpaid_format_date_value( $subscription->get_expiration() );
 }
 add_action( 'getpaid_subscription_admin_display_renews_on', 'getpaid_admin_subscription_metabox_display_renews_on' );
 
@@ -297,8 +297,8 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_renewals( $subscription ) {
-	$max_bills = $subscription->get_bill_times();
-	echo $subscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+    $max_bills = $subscription->get_bill_times();
+    echo $subscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
 }
 add_action( 'getpaid_subscription_admin_display_renewals', 'getpaid_admin_subscription_metabox_display_renewals' );
 /**
@@ -309,13 +309,13 @@ 
  */
 function getpaid_admin_subscription_metabox_display_item( $subscription, $subscription_group = false ) {
 
-	if ( empty( $subscription_group ) ) {
-		echo WPInv_Subscriptions_List_Table::generate_item_markup( $subscription->get_product_id() );
-		return;
-	}
+    if ( empty( $subscription_group ) ) {
+        echo WPInv_Subscriptions_List_Table::generate_item_markup( $subscription->get_product_id() );
+        return;
+    }
 
-	$markup = array_map( array( 'WPInv_Subscriptions_List_Table', 'generate_item_markup' ), array_keys( $subscription_group['items'] ) );
-	echo implode( ' | ', $markup );
+    $markup = array_map( array( 'WPInv_Subscriptions_List_Table', 'generate_item_markup' ), array_keys( $subscription_group['items'] ) );
+    echo implode( ' | ', $markup );
 
 }
 add_action( 'getpaid_subscription_admin_display_item', 'getpaid_admin_subscription_metabox_display_item', 10, 2 );
@@ -327,13 +327,13 @@ 
  */
 function getpaid_admin_subscription_metabox_display_gateway( $subscription ) {
 
-	$gateway = $subscription->get_gateway();
+    $gateway = $subscription->get_gateway();
 
-	if ( ! empty( $gateway ) ) {
-		echo esc_html( wpinv_get_gateway_admin_label( $gateway ) );
-	} else {
-		echo "&mdash;";
-	}
+    if ( ! empty( $gateway ) ) {
+        echo esc_html( wpinv_get_gateway_admin_label( $gateway ) );
+    } else {
+        echo "&mdash;";
+    }
 
 }
 add_action( 'getpaid_subscription_admin_display_gateway', 'getpaid_admin_subscription_metabox_display_gateway' );
@@ -344,7 +344,7 @@ 
  * @param WPInv_Subscription $subscription
  */
 function getpaid_admin_subscription_metabox_display_status( $subscription ) {
-	echo $subscription->get_status_label_html();
+    echo $subscription->get_status_label_html();
 }
 add_action( 'getpaid_subscription_admin_display_status', 'getpaid_admin_subscription_metabox_display_status' );
 
@@ -355,29 +355,29 @@ 
  */
 function getpaid_admin_subscription_metabox_display_profile_id( $subscription ) {
 
-	$profile_id = $subscription->get_profile_id();
-
-	$input = aui()->input(
-		array(
-			'type'        => 'text',
-			'id'          => 'wpinv_subscription_profile_id',
-			'name'        => 'wpinv_subscription_profile_id',
-			'label'       => __( 'Profile Id', 'invoicing' ),
-			'label_type'  => 'hidden',
-			'placeholder' => __( 'Profile Id', 'invoicing' ),
-			'value'       => esc_attr( $profile_id ),
-			'input_group_right' => '',
-			'no_wrap'     => true,
-		)
-	);
-
-	echo str_ireplace( 'form-control', 'regular-text', $input );
-
-	$url = apply_filters( 'getpaid_remote_subscription_profile_url', '', $subscription );
-	if ( ! empty( $url ) ) {
-		$url = esc_url_raw( $url );
-		echo '&nbsp;<a href="' . $url . '" title="' . __( 'View in Gateway', 'invoicing' ) . '" target="_blank"><i class="fas fa-external-link-alt fa-xs fa-fw align-top"></i></a>';
-	}
+    $profile_id = $subscription->get_profile_id();
+
+    $input = aui()->input(
+        array(
+            'type'        => 'text',
+            'id'          => 'wpinv_subscription_profile_id',
+            'name'        => 'wpinv_subscription_profile_id',
+            'label'       => __( 'Profile Id', 'invoicing' ),
+            'label_type'  => 'hidden',
+            'placeholder' => __( 'Profile Id', 'invoicing' ),
+            'value'       => esc_attr( $profile_id ),
+            'input_group_right' => '',
+            'no_wrap'     => true,
+        )
+    );
+
+    echo str_ireplace( 'form-control', 'regular-text', $input );
+
+    $url = apply_filters( 'getpaid_remote_subscription_profile_url', '', $subscription );
+    if ( ! empty( $url ) ) {
+        $url = esc_url_raw( $url );
+        echo '&nbsp;<a href="' . $url . '" title="' . __( 'View in Gateway', 'invoicing' ) . '" target="_blank"><i class="fas fa-external-link-alt fa-xs fa-fw align-top"></i></a>';
+    }
 
 }
 add_action( 'getpaid_subscription_admin_display_profile_id', 'getpaid_admin_subscription_metabox_display_profile_id' );
@@ -389,39 +389,39 @@ 
  */
 function getpaid_admin_subscription_update_metabox( $subscription ) {
 
-	?>
+    ?>
 	<div class="mt-3">
 
 		<?php
-			echo aui()->select(
-				array(
-					'options'          => getpaid_get_subscription_statuses(),
-					'name'             => 'subscription_status',
-					'id'               => 'subscription_status_update_select',
-					'required'         => true,
-					'no_wrap'          => false,
-					'label'            => __( 'Subscription Status', 'invoicing' ),
-					'help_text'        => __( 'Updating the status will trigger related actions and hooks', 'invoicing' ),
-					'select2'          => true,
-					'value'            => $subscription->get_status( 'edit' ),
-				)
-			);
-		?>
+            echo aui()->select(
+                array(
+                    'options'          => getpaid_get_subscription_statuses(),
+                    'name'             => 'subscription_status',
+                    'id'               => 'subscription_status_update_select',
+                    'required'         => true,
+                    'no_wrap'          => false,
+                    'label'            => __( 'Subscription Status', 'invoicing' ),
+                    'help_text'        => __( 'Updating the status will trigger related actions and hooks', 'invoicing' ),
+                    'select2'          => true,
+                    'value'            => $subscription->get_status( 'edit' ),
+                )
+            );
+        ?>
 
 		<div class="mt-2 px-3 py-2 bg-light border-top" style="margin: -12px;">
 
 		<?php
-			submit_button( __( 'Update', 'invoicing' ), 'primary', 'submit', false );
+            submit_button( __( 'Update', 'invoicing' ), 'primary', 'submit', false );
 
-			$url    = esc_url( wp_nonce_url( add_query_arg( 'getpaid-admin-action', 'subscription_manual_renew' ), 'getpaid-nonce', 'getpaid-nonce' ) );
-			$anchor = __( 'Renew Subscription', 'invoicing' );
-			$title  = esc_attr__( 'Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing' );
+            $url    = esc_url( wp_nonce_url( add_query_arg( 'getpaid-admin-action', 'subscription_manual_renew' ), 'getpaid-nonce', 'getpaid-nonce' ) );
+            $anchor = __( 'Renew Subscription', 'invoicing' );
+            $title  = esc_attr__( 'Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing' );
 
-			if ( $subscription->is_active() ) {
-				echo "<a href='$url' class='float-right text-muted' onclick='return confirm(\"$title\")'>$anchor</a>";
-			}
+            if ( $subscription->is_active() ) {
+                echo "<a href='$url' class='float-right text-muted' onclick='return confirm(\"$title\")'>$anchor</a>";
+            }
 
-	echo '</div></div>';
+    echo '</div></div>';
 }
 
 /**
@@ -432,33 +432,33 @@ 
  */
 function getpaid_admin_subscription_invoice_details_metabox( $subscription, $strict = true ) {
 
-	$columns = apply_filters(
-		'getpaid_subscription_related_invoices_columns',
-		array(
-			'invoice'      => __( 'Invoice', 'invoicing' ),
-			'relationship' => __( 'Relationship', 'invoicing' ),
-			'date'         => __( 'Date', 'invoicing' ),
-			'status'       => __( 'Status', 'invoicing' ),
-			'total'        => __( 'Total', 'invoicing' ),
-		),
-		$subscription
-	);
-
-	// Prepare the invoices.
-	$payments = $subscription->get_child_payments( ! is_admin() );
-	$parent   = $subscription->get_parent_invoice();
-
-	if ( $parent->exists() ) {
-		$payments = array_merge( array( $parent ), $payments );
-	}
-
-	$table_class = 'w-100 bg-white';
-
-	if ( ! is_admin() ) {
-		$table_class = 'table table-bordered';
-	}
-
-	?>
+    $columns = apply_filters(
+        'getpaid_subscription_related_invoices_columns',
+        array(
+            'invoice'      => __( 'Invoice', 'invoicing' ),
+            'relationship' => __( 'Relationship', 'invoicing' ),
+            'date'         => __( 'Date', 'invoicing' ),
+            'status'       => __( 'Status', 'invoicing' ),
+            'total'        => __( 'Total', 'invoicing' ),
+        ),
+        $subscription
+    );
+
+    // Prepare the invoices.
+    $payments = $subscription->get_child_payments( ! is_admin() );
+    $parent   = $subscription->get_parent_invoice();
+
+    if ( $parent->exists() ) {
+        $payments = array_merge( array( $parent ), $payments );
+    }
+
+    $table_class = 'w-100 bg-white';
+
+    if ( ! is_admin() ) {
+        $table_class = 'table table-bordered';
+    }
+
+    ?>
 		<div class="m-0" style="overflow: auto;">
 
 			<table class="<?php echo $table_class; ?>">
@@ -466,14 +466,14 @@ 
 				<thead>
 					<tr>
 						<?php
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = esc_html( $label );
-								$class = 'text-left';
-
-								echo "<th class='subscription-invoice-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
-							}
-						?>
+                            foreach ( $columns as $key => $label ) {
+                                $key   = esc_attr( $key );
+                                $label = esc_html( $label );
+                                $class = 'text-left';
+
+                                echo "<th class='subscription-invoice-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
+                            }
+                        ?>
 					</tr>
 				</thead>
 
@@ -489,73 +489,73 @@ 
 
 					<?php
 
-						foreach( $payments as $payment ) :
+                        foreach( $payments as $payment ) :
 
-							// Ensure that we have an invoice.
-							$payment = new WPInv_Invoice( $payment );
+                            // Ensure that we have an invoice.
+                            $payment = new WPInv_Invoice( $payment );
 
-							// Abort if the invoice is invalid...
-							if ( ! $payment->exists() ) {
-								continue;
-							}
+                            // Abort if the invoice is invalid...
+                            if ( ! $payment->exists() ) {
+                                continue;
+                            }
 
-							// ... or belongs to a different subscription.
-							if ( $strict && $payment->is_renewal() && $payment->get_subscription_id() && $payment->get_subscription_id() != $subscription->get_id() ) {
-								continue;
-							}
+                            // ... or belongs to a different subscription.
+                            if ( $strict && $payment->is_renewal() && $payment->get_subscription_id() && $payment->get_subscription_id() != $subscription->get_id() ) {
+                                continue;
+                            }
 
-							echo '<tr>';
+                            echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+                                foreach ( array_keys( $columns ) as $key ) {
 
-									$class = 'text-left';
+                                    $class = 'text-left';
 
-									echo "<td class='p-2 $class'>";
+                                    echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+                                        switch( $key ) {
 
-											case 'total':
-												echo '<strong>' . wpinv_price( $payment->get_total(), $payment->get_currency() ) . '</strong>';
-												break;
+                                            case 'total':
+                                                echo '<strong>' . wpinv_price( $payment->get_total(), $payment->get_currency() ) . '</strong>';
+                                                break;
 
-											case 'relationship':
-												echo $payment->is_renewal() ? __( 'Renewal Invoice', 'invoicing' ) : __( 'Initial Invoice', 'invoicing' );
-												break;
+                                            case 'relationship':
+                                                echo $payment->is_renewal() ? __( 'Renewal Invoice', 'invoicing' ) : __( 'Initial Invoice', 'invoicing' );
+                                                break;
 
-											case 'date':
-												echo getpaid_format_date_value( $payment->get_date_created() );
-												break;
+                                            case 'date':
+                                                echo getpaid_format_date_value( $payment->get_date_created() );
+                                                break;
 
-											case 'status':
+                                            case 'status':
 
-												$status = $payment->get_status_nicename();
-												if ( is_admin() ) {
-													$status = $payment->get_status_label_html();
-												}
+                                                $status = $payment->get_status_nicename();
+                                                if ( is_admin() ) {
+                                                    $status = $payment->get_status_label_html();
+                                                }
 
-												echo $status;
-												break;
+                                                echo $status;
+                                                break;
 
-											case 'invoice':
-												$link    = esc_url( get_edit_post_link( $payment->get_id() ) );
+                                            case 'invoice':
+                                                $link    = esc_url( get_edit_post_link( $payment->get_id() ) );
 
-												if ( ! is_admin() ) {
-													$link = esc_url( $payment->get_view_url() );
-												}
+                                                if ( ! is_admin() ) {
+                                                    $link = esc_url( $payment->get_view_url() );
+                                                }
 
-												$invoice = esc_html( $payment->get_number() );
-												echo "<a href='$link'>$invoice</a>";
-												break;
-										}
+                                                $invoice = esc_html( $payment->get_number() );
+                                                echo "<a href='$link'>$invoice</a>";
+                                                break;
+                                        }
 
-									echo '</td>';
+                                    echo '</td>';
 
-								}
+                                }
 
-							echo '</tr>';
+                            echo '</tr>';
 
-						endforeach;
-					?>
+                        endforeach;
+                    ?>
 
 				</tbody>
 
@@ -573,42 +573,42 @@ 
  */
 function getpaid_admin_subscription_item_details_metabox( $subscription ) {
 
-	// Fetch the subscription group.
-	$subscription_group = getpaid_get_invoice_subscription_group( $subscription->get_parent_payment_id(), $subscription->get_id() );
+    // Fetch the subscription group.
+    $subscription_group = getpaid_get_invoice_subscription_group( $subscription->get_parent_payment_id(), $subscription->get_id() );
 
-	if ( empty( $subscription_group ) || empty( $subscription_group['items'] ) ) {
-		return;
-	}
+    if ( empty( $subscription_group ) || empty( $subscription_group['items'] ) ) {
+        return;
+    }
 
-	// Prepare table columns.
-	$columns = apply_filters(
-		'getpaid_subscription_item_details_columns',
-		array(
-			'item_name'    => __( 'Item', 'invoicing' ),
-			'price'        => __( 'Price', 'invoicing' ),
-			'tax'          => __( 'Tax', 'invoicing' ),
-			'discount'     => __( 'Discount', 'invoicing' ),
-			//'initial'      => __( 'Initial Amount', 'invoicing' ),
-			'recurring'    => __( 'Subtotal', 'invoicing' ),
-		),
-		$subscription
-	);
+    // Prepare table columns.
+    $columns = apply_filters(
+        'getpaid_subscription_item_details_columns',
+        array(
+            'item_name'    => __( 'Item', 'invoicing' ),
+            'price'        => __( 'Price', 'invoicing' ),
+            'tax'          => __( 'Tax', 'invoicing' ),
+            'discount'     => __( 'Discount', 'invoicing' ),
+            //'initial'      => __( 'Initial Amount', 'invoicing' ),
+            'recurring'    => __( 'Subtotal', 'invoicing' ),
+        ),
+        $subscription
+    );
 
-	// Prepare the invoices.
+    // Prepare the invoices.
 
-	$invoice = $subscription->get_parent_invoice();
+    $invoice = $subscription->get_parent_invoice();
 
-	if ( ( ! wpinv_use_taxes() || ! $invoice->is_taxable() ) && isset( $columns['tax'] ) ) {
-		unset( $columns['tax'] );
-	}
+    if ( ( ! wpinv_use_taxes() || ! $invoice->is_taxable() ) && isset( $columns['tax'] ) ) {
+        unset( $columns['tax'] );
+    }
 
-	$table_class = 'w-100 bg-white';
+    $table_class = 'w-100 bg-white';
 
-	if ( ! is_admin() ) {
-		$table_class = 'table table-bordered';
-	}
+    if ( ! is_admin() ) {
+        $table_class = 'table table-bordered';
+    }
 
-	?>
+    ?>
 		<div class="m-0" style="overflow: auto;">
 
 			<table class="<?php echo $table_class; ?>">
@@ -617,14 +617,14 @@ 
 					<tr>
 						<?php
 
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = esc_html( $label );
-								$class = 'text-left';
+                            foreach ( $columns as $key => $label ) {
+                                $key   = esc_attr( $key );
+                                $label = esc_html( $label );
+                                $class = 'text-left';
 
-								echo "<th class='subscription-item-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
-							}
-						?>
+                                echo "<th class='subscription-item-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
+                            }
+                        ?>
 					</tr>
 				</thead>
 
@@ -632,106 +632,106 @@ 
 
 					<?php
 
-						foreach( $subscription_group['items'] as $subscription_group_item ) :
+                        foreach( $subscription_group['items'] as $subscription_group_item ) :
 
-							echo '<tr>';
+                            echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+                                foreach ( array_keys( $columns ) as $key ) {
 
-									$class = 'text-left';
+                                    $class = 'text-left';
 
-									echo "<td class='p-2 $class'>";
+                                    echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+                                        switch( $key ) {
 
-											case 'item_name':
-												$item_name = get_the_title( $subscription_group_item['item_id'] );
-												$item_name = empty( $item_name ) ? $subscription_group_item['item_name'] : $item_name;
+                                            case 'item_name':
+                                                $item_name = get_the_title( $subscription_group_item['item_id'] );
+                                                $item_name = empty( $item_name ) ? $subscription_group_item['item_name'] : $item_name;
 
-												if ( $invoice->get_template() == 'amount' || 1 == (float) $subscription_group_item['quantity'] ) {
-													echo esc_html( $item_name );
-												} else {
-													printf( '%1$s x %2$d', esc_html( $item_name ), (float) $subscription_group_item['quantity'] );
-												}
+                                                if ( $invoice->get_template() == 'amount' || 1 == (float) $subscription_group_item['quantity'] ) {
+                                                    echo esc_html( $item_name );
+                                                } else {
+                                                    printf( '%1$s x %2$d', esc_html( $item_name ), (float) $subscription_group_item['quantity'] );
+                                                }
 
-												break;
+                                                break;
 
-											case 'price':
-												echo wpinv_price( $subscription_group_item['item_price'], $invoice->get_currency() );
-												break;
+                                            case 'price':
+                                                echo wpinv_price( $subscription_group_item['item_price'], $invoice->get_currency() );
+                                                break;
 
-											case 'tax':
-												echo wpinv_price( $subscription_group_item['tax'], $invoice->get_currency() );
-												break;
+                                            case 'tax':
+                                                echo wpinv_price( $subscription_group_item['tax'], $invoice->get_currency() );
+                                                break;
 
-											case 'discount':
-												echo wpinv_price( $subscription_group_item['discount'], $invoice->get_currency() );
-												break;
+                                            case 'discount':
+                                                echo wpinv_price( $subscription_group_item['discount'], $invoice->get_currency() );
+                                                break;
 
-											case 'initial':
-												echo wpinv_price( $subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency() );
-												break;
+                                            case 'initial':
+                                                echo wpinv_price( $subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency() );
+                                                break;
 
-											case 'recurring':
-												echo '<strong>' . wpinv_price( $subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency() ) . '</strong>';
-												break;
+                                            case 'recurring':
+                                                echo '<strong>' . wpinv_price( $subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency() ) . '</strong>';
+                                                break;
 
-										}
+                                        }
 
-									echo '</td>';
+                                    echo '</td>';
 
-								}
+                                }
 
-							echo '</tr>';
+                            echo '</tr>';
 
-						endforeach;
+                        endforeach;
 
-						foreach( $subscription_group['fees'] as $subscription_group_fee ) :
+                        foreach( $subscription_group['fees'] as $subscription_group_fee ) :
 
-							echo '<tr>';
+                            echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+                                foreach ( array_keys( $columns ) as $key ) {
 
-									$class = 'text-left';
+                                    $class = 'text-left';
 
-									echo "<td class='p-2 $class'>";
+                                    echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+                                        switch( $key ) {
 
-											case 'item_name':
-												echo esc_html( $subscription_group_fee['name'] );
-												break;
+                                            case 'item_name':
+                                                echo esc_html( $subscription_group_fee['name'] );
+                                                break;
 
-											case 'price':
-												echo wpinv_price( $subscription_group_fee['initial_fee'], $invoice->get_currency() );
-												break;
+                                            case 'price':
+                                                echo wpinv_price( $subscription_group_fee['initial_fee'], $invoice->get_currency() );
+                                                break;
 
-											case 'tax':
-												echo "&mdash;";
-												break;
+                                            case 'tax':
+                                                echo "&mdash;";
+                                                break;
 
-											case 'discount':
-												echo "&mdash;";
-												break;
+                                            case 'discount':
+                                                echo "&mdash;";
+                                                break;
 
-											case 'initial':
-												echo wpinv_price( $subscription_group_fee['initial_fee'], $invoice->get_currency() );
-												break;
+                                            case 'initial':
+                                                echo wpinv_price( $subscription_group_fee['initial_fee'], $invoice->get_currency() );
+                                                break;
 
-											case 'recurring':
-												echo '<strong>' . wpinv_price( $subscription_group_fee['recurring_fee'], $invoice->get_currency() ) . '</strong>';
-												break;
+                                            case 'recurring':
+                                                echo '<strong>' . wpinv_price( $subscription_group_fee['recurring_fee'], $invoice->get_currency() ) . '</strong>';
+                                                break;
 
-										}
+                                        }
 
-									echo '</td>';
+                                    echo '</td>';
 
-								}
+                                }
 
-							echo '</tr>';
+                            echo '</tr>';
 
-						endforeach;
-					?>
+                        endforeach;
+                    ?>
 
 				</tbody>
 
@@ -750,38 +750,38 @@ 
  */
 function getpaid_admin_subscription_related_subscriptions_metabox( $subscription, $skip_current = true ) {
 
-	// Fetch the subscription groups.
-	$subscription_groups = getpaid_get_invoice_subscription_groups( $subscription->get_parent_payment_id() );
-
-	if ( empty( $subscription_groups ) ) {
-		return;
-	}
-
-	// Prepare table columns.
-	$columns = apply_filters(
-		'getpaid_subscription_related_subscriptions_columns',
-		array(
-			'subscription'      => __( 'Subscription', 'invoicing' ),
-			'start_date'        => __( 'Start Date', 'invoicing' ),
-			'renewal_date'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'          => __( 'Payments', 'invoicing' ),
-			'item'              => __( 'Items', 'invoicing' ),
-			'status'            => __( 'Status', 'invoicing' ),
-		),
-		$subscription
-	);
-
-	if ( $subscription->get_status() == 'pending' ) {
-		unset( $columns['start_date'], $columns['renewal_date'] );
-	}
-
-	$table_class = 'w-100 bg-white';
-
-	if ( ! is_admin() ) {
-		$table_class = 'table table-bordered';
-	}
-
-	?>
+    // Fetch the subscription groups.
+    $subscription_groups = getpaid_get_invoice_subscription_groups( $subscription->get_parent_payment_id() );
+
+    if ( empty( $subscription_groups ) ) {
+        return;
+    }
+
+    // Prepare table columns.
+    $columns = apply_filters(
+        'getpaid_subscription_related_subscriptions_columns',
+        array(
+            'subscription'      => __( 'Subscription', 'invoicing' ),
+            'start_date'        => __( 'Start Date', 'invoicing' ),
+            'renewal_date'      => __( 'Next Payment', 'invoicing' ),
+            'renewals'          => __( 'Payments', 'invoicing' ),
+            'item'              => __( 'Items', 'invoicing' ),
+            'status'            => __( 'Status', 'invoicing' ),
+        ),
+        $subscription
+    );
+
+    if ( $subscription->get_status() == 'pending' ) {
+        unset( $columns['start_date'], $columns['renewal_date'] );
+    }
+
+    $table_class = 'w-100 bg-white';
+
+    if ( ! is_admin() ) {
+        $table_class = 'table table-bordered';
+    }
+
+    ?>
 		<div class="m-0" style="overflow: auto;">
 
 			<table class="<?php echo $table_class; ?>">
@@ -790,14 +790,14 @@ 
 					<tr>
 						<?php
 
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = esc_html( $label );
-								$class = 'text-left';
+                            foreach ( $columns as $key => $label ) {
+                                $key   = esc_attr( $key );
+                                $label = esc_html( $label );
+                                $class = 'text-left';
 
-								echo "<th class='related-subscription-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
-							}
-						?>
+                                echo "<th class='related-subscription-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
+                            }
+                        ?>
 					</tr>
 				</thead>
 
@@ -805,74 +805,74 @@ 
 
 					<?php
 
-						foreach( $subscription_groups as $subscription_group ) :
+                        foreach( $subscription_groups as $subscription_group ) :
 
-							// Do not list current subscription.
-							if ( $skip_current && (int) $subscription_group['subscription_id'] === $subscription->get_id() ) {
-								continue;
-							}
+                            // Do not list current subscription.
+                            if ( $skip_current && (int) $subscription_group['subscription_id'] === $subscription->get_id() ) {
+                                continue;
+                            }
 
-							// Ensure the subscription exists.
-							$_suscription = new WPInv_Subscription( $subscription_group['subscription_id'] );
+                            // Ensure the subscription exists.
+                            $_suscription = new WPInv_Subscription( $subscription_group['subscription_id'] );
 
-							if ( ! $_suscription->exists() ) {
-								continue;
-							}
+                            if ( ! $_suscription->exists() ) {
+                                continue;
+                            }
 
-							echo '<tr>';
+                            echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+                                foreach ( array_keys( $columns ) as $key ) {
 
-									$class = 'text-left';
+                                    $class = 'text-left';
 
-									echo "<td class='p-2 $class'>";
+                                    echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+                                        switch( $key ) {
 
-											case 'status':
-												echo $_suscription->get_status_label_html();
-												break;
+                                            case 'status':
+                                                echo $_suscription->get_status_label_html();
+                                                break;
 
-											case 'item':
-												$markup = array_map( array( 'WPInv_Subscriptions_List_Table', 'generate_item_markup' ), array_keys( $subscription_group['items'] ) );
-												echo implode( ' | ', $markup );
-												break;
+                                            case 'item':
+                                                $markup = array_map( array( 'WPInv_Subscriptions_List_Table', 'generate_item_markup' ), array_keys( $subscription_group['items'] ) );
+                                                echo implode( ' | ', $markup );
+                                                break;
 
-											case 'renewals':
-												$max_bills = $_suscription->get_bill_times();
-												echo $_suscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
-												break;
+                                            case 'renewals':
+                                                $max_bills = $_suscription->get_bill_times();
+                                                echo $_suscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+                                                break;
 
-											case 'renewal_date':
-												echo $_suscription->is_active() ? getpaid_format_date_value( $_suscription->get_expiration() ) : "&mdash;";
-												break;
+                                            case 'renewal_date':
+                                                echo $_suscription->is_active() ? getpaid_format_date_value( $_suscription->get_expiration() ) : "&mdash;";
+                                                break;
 
-											case 'start_date':
-												echo 'pending' == $_suscription->get_status() ? "&mdash;" : getpaid_format_date_value( $_suscription->get_date_created() );
-												break;
+                                            case 'start_date':
+                                                echo 'pending' == $_suscription->get_status() ? "&mdash;" : getpaid_format_date_value( $_suscription->get_date_created() );
+                                                break;
 
-											case 'subscription':
-												$url = is_admin() ? admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $_suscription->get_id() ) ) : $_suscription->get_view_url();
-												printf(
-													'%1$s#%2$s%3$s',
-													'<a href="' . esc_url( $url ) . '">',
-													'<strong>' . intval( $_suscription->get_id() ) . '</strong>',
-													'</a>'
-												);
+                                            case 'subscription':
+                                                $url = is_admin() ? admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $_suscription->get_id() ) ) : $_suscription->get_view_url();
+                                                printf(
+                                                    '%1$s#%2$s%3$s',
+                                                    '<a href="' . esc_url( $url ) . '">',
+                                                    '<strong>' . intval( $_suscription->get_id() ) . '</strong>',
+                                                    '</a>'
+                                                );
 
-												echo WPInv_Subscriptions_List_Table::column_amount( $_suscription );
-												break;
+                                                echo WPInv_Subscriptions_List_Table::column_amount( $_suscription );
+                                                break;
 
-										}
+                                        }
 
-									echo '</td>';
+                                    echo '</td>';
 
-								}
+                                }
 
-							echo '</tr>';
+                            echo '</tr>';
 
-						endforeach;
-					?>
+                        endforeach;
+                    ?>
 
 				</tbody>
 

Spacing +198 added lines, -198 removed lines

@@ -3,7 +3,7 @@ 
  * Contains functions that display the subscriptions admin page.
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Render the Subscriptions page
@@ -17,22 +17,22 @@ 
 	?>
 
 	<div class="wrap">
-		<h1><?php echo esc_html( get_admin_page_title() ); ?></h1>
+		<h1><?php echo esc_html(get_admin_page_title()); ?></h1>
 		<div class="bsui">
 
 			<?php
 
 				// Verify user permissions.
-				if ( ! wpinv_current_user_can_manage_invoicing() ) {
+				if (!wpinv_current_user_can_manage_invoicing()) {
 
 					echo aui()->alert(
 						array(
 							'type'    => 'danger',
-							'content' => __( 'You are not permitted to view this page.', 'invoicing' ),
+							'content' => __('You are not permitted to view this page.', 'invoicing'),
 						)
 					);
 
-				} else if ( ! empty( $_GET['id'] ) && is_numeric( $_GET['id'] ) ) {
+				} else if (!empty($_GET['id']) && is_numeric($_GET['id'])) {
 
 					// Display a single subscription.
 					wpinv_recurring_subscription_details();
@@ -66,7 +66,7 @@ 
 	<?php $subscribers_table->views(); ?>
 	<form id="subscribers-filter" class="bsui" method="get">
 		<input type="hidden" name="page" value="wpinv-subscriptions" />
-		<?php $subscribers_table->search_box( __( 'Search Subscriptions', 'invoicing' ), 'getpaid-search-subscriptions' ); ?>
+		<?php $subscribers_table->search_box(__('Search Subscriptions', 'invoicing'), 'getpaid-search-subscriptions'); ?>
 		<?php $subscribers_table->display(); ?>
 	</form>
 	<?php
@@ -82,13 +82,13 @@ 
 function wpinv_recurring_subscription_details() {
 
 	// Fetch the subscription.
-	$sub = new WPInv_Subscription( (int) $_GET['id'] );
-	if ( ! $sub->exists() ) {
+	$sub = new WPInv_Subscription((int) $_GET['id']);
+	if (!$sub->exists()) {
 
 		echo aui()->alert(
 			array(
 				'type'    => 'danger',
-				'content' => __( 'Subscription not found.', 'invoicing' ),
+				'content' => __('Subscription not found.', 'invoicing'),
 			)
 		);
 
@@ -96,45 +96,45 @@ 
 	}
 
 	// Use metaboxes to display the subscription details.
-	add_meta_box( 'getpaid_admin_subscription_details_metabox', __( 'Subscription Details', 'invoicing' ), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal', 'high' );
-	add_meta_box( 'getpaid_admin_subscription_update_metabox', __( 'Change Status', 'invoicing' ), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side' );
+	add_meta_box('getpaid_admin_subscription_details_metabox', __('Subscription Details', 'invoicing'), 'getpaid_admin_subscription_details_metabox', get_current_screen(), 'normal', 'high');
+	add_meta_box('getpaid_admin_subscription_update_metabox', __('Change Status', 'invoicing'), 'getpaid_admin_subscription_update_metabox', get_current_screen(), 'side');
 
 	$subscription_id     = $sub->get_id();
-	$subscription_groups = getpaid_get_invoice_subscription_groups( $sub->get_parent_invoice_id() );
-	$subscription_group  = wp_list_filter( $subscription_groups, compact( 'subscription_id' ) );
+	$subscription_groups = getpaid_get_invoice_subscription_groups($sub->get_parent_invoice_id());
+	$subscription_group  = wp_list_filter($subscription_groups, compact('subscription_id'));
 
-	if ( 1 < count( $subscription_groups ) ) {
-		add_meta_box( 'getpaid_admin_subscription_related_subscriptions_metabox', __( 'Related Subscriptions', 'invoicing' ), 'getpaid_admin_subscription_related_subscriptions_metabox', get_current_screen(), 'advanced' );
+	if (1 < count($subscription_groups)) {
+		add_meta_box('getpaid_admin_subscription_related_subscriptions_metabox', __('Related Subscriptions', 'invoicing'), 'getpaid_admin_subscription_related_subscriptions_metabox', get_current_screen(), 'advanced');
 	}
 
-	if ( ! empty( $subscription_group ) ) {
-		add_meta_box( 'getpaid_admin_subscription_item_details_metabox', __( 'Subscription Items', 'invoicing' ), 'getpaid_admin_subscription_item_details_metabox', get_current_screen(), 'normal', 'low' );
+	if (!empty($subscription_group)) {
+		add_meta_box('getpaid_admin_subscription_item_details_metabox', __('Subscription Items', 'invoicing'), 'getpaid_admin_subscription_item_details_metabox', get_current_screen(), 'normal', 'low');
 	}
 
-	add_meta_box( 'getpaid_admin_subscription_invoice_details_metabox', __( 'Related Invoices', 'invoicing' ), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced' );
+	add_meta_box('getpaid_admin_subscription_invoice_details_metabox', __('Related Invoices', 'invoicing'), 'getpaid_admin_subscription_invoice_details_metabox', get_current_screen(), 'advanced');
 
-	do_action( 'getpaid_admin_single_subscription_register_metabox', $sub );
+	do_action('getpaid_admin_single_subscription_register_metabox', $sub);
 
 	?>
 
-		<form method="post" action="<?php echo admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $sub->get_id() ) ); ?>">
+		<form method="post" action="<?php echo admin_url('admin.php?page=wpinv-subscriptions&id=' . absint($sub->get_id())); ?>">
 
-			<?php wp_nonce_field( 'getpaid-nonce', 'getpaid-nonce' ); ?>
-			<?php wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false ); ?>
-			<?php wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false ); ?>
+			<?php wp_nonce_field('getpaid-nonce', 'getpaid-nonce'); ?>
+			<?php wp_nonce_field('meta-box-order', 'meta-box-order-nonce', false); ?>
+			<?php wp_nonce_field('closedpostboxes', 'closedpostboxesnonce', false); ?>
 			<input type="hidden" name="getpaid-admin-action" value="update_single_subscription" />
-			<input type="hidden" name="subscription_id" value="<?php echo (int) $sub->get_id() ;?>" />
+			<input type="hidden" name="subscription_id" value="<?php echo (int) $sub->get_id(); ?>" />
 
 			<div id="poststuff">
 				<div id="post-body" class="metabox-holder columns-<?php echo 1 == get_current_screen()->get_columns() ? '1' : '2'; ?>">
 
 					<div id="postbox-container-1" class="postbox-container">
-						<?php do_meta_boxes( get_current_screen(), 'side', $sub ); ?>
+						<?php do_meta_boxes(get_current_screen(), 'side', $sub); ?>
 					</div>
 
 					<div id="postbox-container-2" class="postbox-container">
-						<?php do_meta_boxes( get_current_screen(), 'normal', $sub ); ?>
-						<?php do_meta_boxes( get_current_screen(), 'advanced', $sub ); ?>
+						<?php do_meta_boxes(get_current_screen(), 'normal', $sub); ?>
+						<?php do_meta_boxes(get_current_screen(), 'advanced', $sub); ?>
 					</div>
 
 				</div>
@@ -153,44 +153,44 @@ 
  *
  * @param WPInv_Subscription $sub
  */
-function getpaid_admin_subscription_details_metabox( $sub ) {
+function getpaid_admin_subscription_details_metabox($sub) {
 
 	// Subscription items.
-	$subscription_group = getpaid_get_invoice_subscription_group( $sub->get_parent_invoice_id(), $sub->get_id() );
-	$items_count        = empty( $subscription_group ) ? 1 : count( $subscription_group['items'] );
+	$subscription_group = getpaid_get_invoice_subscription_group($sub->get_parent_invoice_id(), $sub->get_id());
+	$items_count        = empty($subscription_group) ? 1 : count($subscription_group['items']);
 
 	// Prepare subscription detail columns.
 	$fields = apply_filters(
 		'getpaid_subscription_admin_page_fields',
 		array(
-			'subscription'   => __( 'Subscription', 'invoicing' ),
-			'customer'       => __( 'Customer', 'invoicing' ),
-			'amount'         => __( 'Amount', 'invoicing' ),
-			'start_date'     => __( 'Start Date', 'invoicing' ),
-			'renews_on'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'       => __( 'Payments', 'invoicing' ),
-			'item'           => _n( 'Item', 'Items', $items_count,  'invoicing' ),
-			'gateway'        => __( 'Payment Method', 'invoicing' ),
-			'profile_id'     => __( 'Profile ID', 'invoicing' ),
-			'status'         => __( 'Status', 'invoicing' ),
+			'subscription'   => __('Subscription', 'invoicing'),
+			'customer'       => __('Customer', 'invoicing'),
+			'amount'         => __('Amount', 'invoicing'),
+			'start_date'     => __('Start Date', 'invoicing'),
+			'renews_on'      => __('Next Payment', 'invoicing'),
+			'renewals'       => __('Payments', 'invoicing'),
+			'item'           => _n('Item', 'Items', $items_count, 'invoicing'),
+			'gateway'        => __('Payment Method', 'invoicing'),
+			'profile_id'     => __('Profile ID', 'invoicing'),
+			'status'         => __('Status', 'invoicing'),
 		)
 	);
 
-	if ( ! $sub->is_active() ) {
+	if (!$sub->is_active()) {
 
-		if ( isset( $fields['renews_on'] ) ) {
-			unset( $fields['renews_on'] );
+		if (isset($fields['renews_on'])) {
+			unset($fields['renews_on']);
 		}
 
-		if ( isset( $fields['gateway'] ) ) {
-			unset( $fields['gateway'] );
+		if (isset($fields['gateway'])) {
+			unset($fields['gateway']);
 		}
 
 	}
 
 	$profile_id = $sub->get_profile_id();
-	if ( empty( $profile_id ) && isset( $fields['profile_id'] ) ) {
-		unset( $fields['profile_id'] );
+	if (empty($profile_id) && isset($fields['profile_id'])) {
+		unset($fields['profile_id']);
 	}
 
 	?>
@@ -198,16 +198,16 @@ 
 		<table class="table table-borderless" style="font-size: 14px;">
 			<tbody>
 
-				<?php foreach ( $fields as $key => $label ) : ?>
+				<?php foreach ($fields as $key => $label) : ?>
 
-					<tr class="getpaid-subscription-meta-<?php echo sanitize_html_class( $key ); ?>">
+					<tr class="getpaid-subscription-meta-<?php echo sanitize_html_class($key); ?>">
 
 						<th class="w-25" style="font-weight: 500;">
-							<?php echo esc_html( $label ); ?>
+							<?php echo esc_html($label); ?>
 						</th>
 
 						<td class="w-75 text-muted">
-							<?php do_action( 'getpaid_subscription_admin_display_' . sanitize_key( $key ), $sub, $subscription_group ); ?>
+							<?php do_action('getpaid_subscription_admin_display_' . sanitize_key($key), $sub, $subscription_group); ?>
 						</td>
 
 					</tr>
@@ -225,135 +225,135 @@ 
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_customer( $subscription ) {
+function getpaid_admin_subscription_metabox_display_customer($subscription) {
 
-	$username = __( '(Missing User)', 'invoicing' );
+	$username = __('(Missing User)', 'invoicing');
 
-	$user = get_userdata( $subscription->get_customer_id() );
-	if ( $user ) {
+	$user = get_userdata($subscription->get_customer_id());
+	if ($user) {
 
 		$username = sprintf(
 			'<a href="user-edit.php?user_id=%s">%s</a>',
-			absint( $user->ID ),
-			! empty( $user->display_name ) ? esc_html( $user->display_name ) : sanitize_email( $user->user_email )
+			absint($user->ID),
+			!empty($user->display_name) ? esc_html($user->display_name) : sanitize_email($user->user_email)
 		);
 
 	}
 
 	echo  $username;
 }
-add_action( 'getpaid_subscription_admin_display_customer', 'getpaid_admin_subscription_metabox_display_customer' );
+add_action('getpaid_subscription_admin_display_customer', 'getpaid_admin_subscription_metabox_display_customer');
 
 /**
  * Displays the subscription amount.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_amount( $subscription ) {
-	$amount    = wp_kses_post( getpaid_get_formatted_subscription_amount( $subscription ) );
+function getpaid_admin_subscription_metabox_display_amount($subscription) {
+	$amount = wp_kses_post(getpaid_get_formatted_subscription_amount($subscription));
 	echo "<span>$amount</span>";
 }
-add_action( 'getpaid_subscription_admin_display_amount', 'getpaid_admin_subscription_metabox_display_amount' );
+add_action('getpaid_subscription_admin_display_amount', 'getpaid_admin_subscription_metabox_display_amount');
 
 /**
  * Displays the subscription id.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_id( $subscription ) {
+function getpaid_admin_subscription_metabox_display_id($subscription) {
 
 	printf(
 		'<a href="%s">#%s</a>',
-		esc_url( admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $subscription->get_id() ) ) ),
-		absint( $subscription->get_id() )
+		esc_url(admin_url('admin.php?page=wpinv-subscriptions&id=' . absint($subscription->get_id()))),
+		absint($subscription->get_id())
 	);
 
 }
-add_action( 'getpaid_subscription_admin_display_subscription', 'getpaid_admin_subscription_metabox_display_id' );
+add_action('getpaid_subscription_admin_display_subscription', 'getpaid_admin_subscription_metabox_display_id');
 
 /**
  * Displays the subscription renewal date.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_start_date( $subscription ) {
-	echo getpaid_format_date_value( $subscription->get_date_created() );
+function getpaid_admin_subscription_metabox_display_start_date($subscription) {
+	echo getpaid_format_date_value($subscription->get_date_created());
 }
-add_action( 'getpaid_subscription_admin_display_start_date', 'getpaid_admin_subscription_metabox_display_start_date' );
+add_action('getpaid_subscription_admin_display_start_date', 'getpaid_admin_subscription_metabox_display_start_date');
 
 /**
  * Displays the subscription renewal date.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_renews_on( $subscription ) {
-	echo getpaid_format_date_value( $subscription->get_expiration() );
+function getpaid_admin_subscription_metabox_display_renews_on($subscription) {
+	echo getpaid_format_date_value($subscription->get_expiration());
 }
-add_action( 'getpaid_subscription_admin_display_renews_on', 'getpaid_admin_subscription_metabox_display_renews_on' );
+add_action('getpaid_subscription_admin_display_renews_on', 'getpaid_admin_subscription_metabox_display_renews_on');
 
 /**
  * Displays the subscription renewal count.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_renewals( $subscription ) {
+function getpaid_admin_subscription_metabox_display_renewals($subscription) {
 	$max_bills = $subscription->get_bill_times();
-	echo $subscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+	echo $subscription->get_times_billed() . ' / ' . (empty($max_bills) ? "&infin;" : $max_bills);
 }
-add_action( 'getpaid_subscription_admin_display_renewals', 'getpaid_admin_subscription_metabox_display_renewals' );
+add_action('getpaid_subscription_admin_display_renewals', 'getpaid_admin_subscription_metabox_display_renewals');
 /**
  * Displays the subscription item.
  *
  * @param WPInv_Subscription $subscription
  * @param false|array $subscription_group
  */
-function getpaid_admin_subscription_metabox_display_item( $subscription, $subscription_group = false ) {
+function getpaid_admin_subscription_metabox_display_item($subscription, $subscription_group = false) {
 
-	if ( empty( $subscription_group ) ) {
-		echo WPInv_Subscriptions_List_Table::generate_item_markup( $subscription->get_product_id() );
+	if (empty($subscription_group)) {
+		echo WPInv_Subscriptions_List_Table::generate_item_markup($subscription->get_product_id());
 		return;
 	}
 
-	$markup = array_map( array( 'WPInv_Subscriptions_List_Table', 'generate_item_markup' ), array_keys( $subscription_group['items'] ) );
-	echo implode( ' | ', $markup );
+	$markup = array_map(array('WPInv_Subscriptions_List_Table', 'generate_item_markup'), array_keys($subscription_group['items']));
+	echo implode(' | ', $markup);
 
 }
-add_action( 'getpaid_subscription_admin_display_item', 'getpaid_admin_subscription_metabox_display_item', 10, 2 );
+add_action('getpaid_subscription_admin_display_item', 'getpaid_admin_subscription_metabox_display_item', 10, 2);
 
 /**
  * Displays the subscription gateway.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_gateway( $subscription ) {
+function getpaid_admin_subscription_metabox_display_gateway($subscription) {
 
 	$gateway = $subscription->get_gateway();
 
-	if ( ! empty( $gateway ) ) {
-		echo esc_html( wpinv_get_gateway_admin_label( $gateway ) );
+	if (!empty($gateway)) {
+		echo esc_html(wpinv_get_gateway_admin_label($gateway));
 	} else {
 		echo "&mdash;";
 	}
 
 }
-add_action( 'getpaid_subscription_admin_display_gateway', 'getpaid_admin_subscription_metabox_display_gateway' );
+add_action('getpaid_subscription_admin_display_gateway', 'getpaid_admin_subscription_metabox_display_gateway');
 
 /**
  * Displays the subscription status.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_status( $subscription ) {
+function getpaid_admin_subscription_metabox_display_status($subscription) {
 	echo $subscription->get_status_label_html();
 }
-add_action( 'getpaid_subscription_admin_display_status', 'getpaid_admin_subscription_metabox_display_status' );
+add_action('getpaid_subscription_admin_display_status', 'getpaid_admin_subscription_metabox_display_status');
 
 /**
  * Displays the subscription profile id.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_metabox_display_profile_id( $subscription ) {
+function getpaid_admin_subscription_metabox_display_profile_id($subscription) {
 
 	$profile_id = $subscription->get_profile_id();
 
@@ -362,32 +362,32 @@ 
 			'type'        => 'text',
 			'id'          => 'wpinv_subscription_profile_id',
 			'name'        => 'wpinv_subscription_profile_id',
-			'label'       => __( 'Profile Id', 'invoicing' ),
+			'label'       => __('Profile Id', 'invoicing'),
 			'label_type'  => 'hidden',
-			'placeholder' => __( 'Profile Id', 'invoicing' ),
-			'value'       => esc_attr( $profile_id ),
+			'placeholder' => __('Profile Id', 'invoicing'),
+			'value'       => esc_attr($profile_id),
 			'input_group_right' => '',
 			'no_wrap'     => true,
 		)
 	);
 
-	echo str_ireplace( 'form-control', 'regular-text', $input );
+	echo str_ireplace('form-control', 'regular-text', $input);
 
-	$url = apply_filters( 'getpaid_remote_subscription_profile_url', '', $subscription );
-	if ( ! empty( $url ) ) {
-		$url = esc_url_raw( $url );
-		echo '&nbsp;<a href="' . $url . '" title="' . __( 'View in Gateway', 'invoicing' ) . '" target="_blank"><i class="fas fa-external-link-alt fa-xs fa-fw align-top"></i></a>';
+	$url = apply_filters('getpaid_remote_subscription_profile_url', '', $subscription);
+	if (!empty($url)) {
+		$url = esc_url_raw($url);
+		echo '&nbsp;<a href="' . $url . '" title="' . __('View in Gateway', 'invoicing') . '" target="_blank"><i class="fas fa-external-link-alt fa-xs fa-fw align-top"></i></a>';
 	}
 
 }
-add_action( 'getpaid_subscription_admin_display_profile_id', 'getpaid_admin_subscription_metabox_display_profile_id' );
+add_action('getpaid_subscription_admin_display_profile_id', 'getpaid_admin_subscription_metabox_display_profile_id');
 
 /**
  * Displays the subscriptions update metabox.
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_update_metabox( $subscription ) {
+function getpaid_admin_subscription_update_metabox($subscription) {
 
 	?>
 	<div class="mt-3">
@@ -400,10 +400,10 @@ 
 					'id'               => 'subscription_status_update_select',
 					'required'         => true,
 					'no_wrap'          => false,
-					'label'            => __( 'Subscription Status', 'invoicing' ),
-					'help_text'        => __( 'Updating the status will trigger related actions and hooks', 'invoicing' ),
+					'label'            => __('Subscription Status', 'invoicing'),
+					'help_text'        => __('Updating the status will trigger related actions and hooks', 'invoicing'),
 					'select2'          => true,
-					'value'            => $subscription->get_status( 'edit' ),
+					'value'            => $subscription->get_status('edit'),
 				)
 			);
 		?>
@@ -411,13 +411,13 @@ 
 		<div class="mt-2 px-3 py-2 bg-light border-top" style="margin: -12px;">
 
 		<?php
-			submit_button( __( 'Update', 'invoicing' ), 'primary', 'submit', false );
+			submit_button(__('Update', 'invoicing'), 'primary', 'submit', false);
 
-			$url    = esc_url( wp_nonce_url( add_query_arg( 'getpaid-admin-action', 'subscription_manual_renew' ), 'getpaid-nonce', 'getpaid-nonce' ) );
-			$anchor = __( 'Renew Subscription', 'invoicing' );
-			$title  = esc_attr__( 'Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing' );
+			$url    = esc_url(wp_nonce_url(add_query_arg('getpaid-admin-action', 'subscription_manual_renew'), 'getpaid-nonce', 'getpaid-nonce'));
+			$anchor = __('Renew Subscription', 'invoicing');
+			$title  = esc_attr__('Are you sure you want to extend the subscription and generate a new invoice that will be automatically marked as paid?', 'invoicing');
 
-			if ( $subscription->is_active() ) {
+			if ($subscription->is_active()) {
 				echo "<a href='$url' class='float-right text-muted' onclick='return confirm(\"$title\")'>$anchor</a>";
 			}
 
@@ -430,31 +430,31 @@ 
  * @param WPInv_Subscription $subscription
  * @param bool $strict Whether or not to skip invoices of sibling subscriptions
  */
-function getpaid_admin_subscription_invoice_details_metabox( $subscription, $strict = true ) {
+function getpaid_admin_subscription_invoice_details_metabox($subscription, $strict = true) {
 
 	$columns = apply_filters(
 		'getpaid_subscription_related_invoices_columns',
 		array(
-			'invoice'      => __( 'Invoice', 'invoicing' ),
-			'relationship' => __( 'Relationship', 'invoicing' ),
-			'date'         => __( 'Date', 'invoicing' ),
-			'status'       => __( 'Status', 'invoicing' ),
-			'total'        => __( 'Total', 'invoicing' ),
+			'invoice'      => __('Invoice', 'invoicing'),
+			'relationship' => __('Relationship', 'invoicing'),
+			'date'         => __('Date', 'invoicing'),
+			'status'       => __('Status', 'invoicing'),
+			'total'        => __('Total', 'invoicing'),
 		),
 		$subscription
 	);
 
 	// Prepare the invoices.
-	$payments = $subscription->get_child_payments( ! is_admin() );
+	$payments = $subscription->get_child_payments(!is_admin());
 	$parent   = $subscription->get_parent_invoice();
 
-	if ( $parent->exists() ) {
-		$payments = array_merge( array( $parent ), $payments );
+	if ($parent->exists()) {
+		$payments = array_merge(array($parent), $payments);
 	}
 
 	$table_class = 'w-100 bg-white';
 
-	if ( ! is_admin() ) {
+	if (!is_admin()) {
 		$table_class = 'table table-bordered';
 	}
 
@@ -466,9 +466,9 @@ 
 				<thead>
 					<tr>
 						<?php
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = esc_html( $label );
+							foreach ($columns as $key => $label) {
+								$key   = esc_attr($key);
+								$label = esc_html($label);
 								$class = 'text-left';
 
 								echo "<th class='subscription-invoice-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
@@ -479,57 +479,57 @@ 
 
 				<tbody>
 
-					<?php if ( empty( $payments ) ) : ?>
+					<?php if (empty($payments)) : ?>
 						<tr>
 							<td colspan="<?php echo count($columns); ?>" class="p-2 text-left text-muted">
-								<?php _e( 'This subscription has no invoices.', 'invoicing' ); ?>
+								<?php _e('This subscription has no invoices.', 'invoicing'); ?>
 							</td>
 						</tr>
 					<?php endif; ?>
 
 					<?php
 
-						foreach( $payments as $payment ) :
+						foreach ($payments as $payment) :
 
 							// Ensure that we have an invoice.
-							$payment = new WPInv_Invoice( $payment );
+							$payment = new WPInv_Invoice($payment);
 
 							// Abort if the invoice is invalid...
-							if ( ! $payment->exists() ) {
+							if (!$payment->exists()) {
 								continue;
 							}
 
 							// ... or belongs to a different subscription.
-							if ( $strict && $payment->is_renewal() && $payment->get_subscription_id() && $payment->get_subscription_id() != $subscription->get_id() ) {
+							if ($strict && $payment->is_renewal() && $payment->get_subscription_id() && $payment->get_subscription_id() != $subscription->get_id()) {
 								continue;
 							}
 
 							echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+								foreach (array_keys($columns) as $key) {
 
 									$class = 'text-left';
 
 									echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+										switch ($key) {
 
 											case 'total':
-												echo '<strong>' . wpinv_price( $payment->get_total(), $payment->get_currency() ) . '</strong>';
+												echo '<strong>' . wpinv_price($payment->get_total(), $payment->get_currency()) . '</strong>';
 												break;
 
 											case 'relationship':
-												echo $payment->is_renewal() ? __( 'Renewal Invoice', 'invoicing' ) : __( 'Initial Invoice', 'invoicing' );
+												echo $payment->is_renewal() ? __('Renewal Invoice', 'invoicing') : __('Initial Invoice', 'invoicing');
 												break;
 
 											case 'date':
-												echo getpaid_format_date_value( $payment->get_date_created() );
+												echo getpaid_format_date_value($payment->get_date_created());
 												break;
 
 											case 'status':
 
 												$status = $payment->get_status_nicename();
-												if ( is_admin() ) {
+												if (is_admin()) {
 													$status = $payment->get_status_label_html();
 												}
 
@@ -537,13 +537,13 @@ 
 												break;
 
 											case 'invoice':
-												$link    = esc_url( get_edit_post_link( $payment->get_id() ) );
+												$link = esc_url(get_edit_post_link($payment->get_id()));
 
-												if ( ! is_admin() ) {
-													$link = esc_url( $payment->get_view_url() );
+												if (!is_admin()) {
+													$link = esc_url($payment->get_view_url());
 												}
 
-												$invoice = esc_html( $payment->get_number() );
+												$invoice = esc_html($payment->get_number());
 												echo "<a href='$link'>$invoice</a>";
 												break;
 										}
@@ -571,12 +571,12 @@ 
  *
  * @param WPInv_Subscription $subscription
  */
-function getpaid_admin_subscription_item_details_metabox( $subscription ) {
+function getpaid_admin_subscription_item_details_metabox($subscription) {
 
 	// Fetch the subscription group.
-	$subscription_group = getpaid_get_invoice_subscription_group( $subscription->get_parent_payment_id(), $subscription->get_id() );
+	$subscription_group = getpaid_get_invoice_subscription_group($subscription->get_parent_payment_id(), $subscription->get_id());
 
-	if ( empty( $subscription_group ) || empty( $subscription_group['items'] ) ) {
+	if (empty($subscription_group) || empty($subscription_group['items'])) {
 		return;
 	}
 
@@ -584,12 +584,12 @@ 
 	$columns = apply_filters(
 		'getpaid_subscription_item_details_columns',
 		array(
-			'item_name'    => __( 'Item', 'invoicing' ),
-			'price'        => __( 'Price', 'invoicing' ),
-			'tax'          => __( 'Tax', 'invoicing' ),
-			'discount'     => __( 'Discount', 'invoicing' ),
+			'item_name'    => __('Item', 'invoicing'),
+			'price'        => __('Price', 'invoicing'),
+			'tax'          => __('Tax', 'invoicing'),
+			'discount'     => __('Discount', 'invoicing'),
 			//'initial'      => __( 'Initial Amount', 'invoicing' ),
-			'recurring'    => __( 'Subtotal', 'invoicing' ),
+			'recurring'    => __('Subtotal', 'invoicing'),
 		),
 		$subscription
 	);
@@ -598,13 +598,13 @@ 
 
 	$invoice = $subscription->get_parent_invoice();
 
-	if ( ( ! wpinv_use_taxes() || ! $invoice->is_taxable() ) && isset( $columns['tax'] ) ) {
-		unset( $columns['tax'] );
+	if ((!wpinv_use_taxes() || !$invoice->is_taxable()) && isset($columns['tax'])) {
+		unset($columns['tax']);
 	}
 
 	$table_class = 'w-100 bg-white';
 
-	if ( ! is_admin() ) {
+	if (!is_admin()) {
 		$table_class = 'table table-bordered';
 	}
 
@@ -617,9 +617,9 @@ 
 					<tr>
 						<?php
 
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = esc_html( $label );
+							foreach ($columns as $key => $label) {
+								$key   = esc_attr($key);
+								$label = esc_html($label);
 								$class = 'text-left';
 
 								echo "<th class='subscription-item-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
@@ -632,48 +632,48 @@ 
 
 					<?php
 
-						foreach( $subscription_group['items'] as $subscription_group_item ) :
+						foreach ($subscription_group['items'] as $subscription_group_item) :
 
 							echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+								foreach (array_keys($columns) as $key) {
 
 									$class = 'text-left';
 
 									echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+										switch ($key) {
 
 											case 'item_name':
-												$item_name = get_the_title( $subscription_group_item['item_id'] );
-												$item_name = empty( $item_name ) ? $subscription_group_item['item_name'] : $item_name;
+												$item_name = get_the_title($subscription_group_item['item_id']);
+												$item_name = empty($item_name) ? $subscription_group_item['item_name'] : $item_name;
 
-												if ( $invoice->get_template() == 'amount' || 1 == (float) $subscription_group_item['quantity'] ) {
-													echo esc_html( $item_name );
+												if ($invoice->get_template() == 'amount' || 1 == (float) $subscription_group_item['quantity']) {
+													echo esc_html($item_name);
 												} else {
-													printf( '%1$s x %2$d', esc_html( $item_name ), (float) $subscription_group_item['quantity'] );
+													printf('%1$s x %2$d', esc_html($item_name), (float) $subscription_group_item['quantity']);
 												}
 
 												break;
 
 											case 'price':
-												echo wpinv_price( $subscription_group_item['item_price'], $invoice->get_currency() );
+												echo wpinv_price($subscription_group_item['item_price'], $invoice->get_currency());
 												break;
 
 											case 'tax':
-												echo wpinv_price( $subscription_group_item['tax'], $invoice->get_currency() );
+												echo wpinv_price($subscription_group_item['tax'], $invoice->get_currency());
 												break;
 
 											case 'discount':
-												echo wpinv_price( $subscription_group_item['discount'], $invoice->get_currency() );
+												echo wpinv_price($subscription_group_item['discount'], $invoice->get_currency());
 												break;
 
 											case 'initial':
-												echo wpinv_price( $subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency() );
+												echo wpinv_price($subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency());
 												break;
 
 											case 'recurring':
-												echo '<strong>' . wpinv_price( $subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency() ) . '</strong>';
+												echo '<strong>' . wpinv_price($subscription_group_item['price'] * $subscription_group_item['quantity'], $invoice->get_currency()) . '</strong>';
 												break;
 
 										}
@@ -686,24 +686,24 @@ 
 
 						endforeach;
 
-						foreach( $subscription_group['fees'] as $subscription_group_fee ) :
+						foreach ($subscription_group['fees'] as $subscription_group_fee) :
 
 							echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+								foreach (array_keys($columns) as $key) {
 
 									$class = 'text-left';
 
 									echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+										switch ($key) {
 
 											case 'item_name':
-												echo esc_html( $subscription_group_fee['name'] );
+												echo esc_html($subscription_group_fee['name']);
 												break;
 
 											case 'price':
-												echo wpinv_price( $subscription_group_fee['initial_fee'], $invoice->get_currency() );
+												echo wpinv_price($subscription_group_fee['initial_fee'], $invoice->get_currency());
 												break;
 
 											case 'tax':
@@ -715,11 +715,11 @@ 
 												break;
 
 											case 'initial':
-												echo wpinv_price( $subscription_group_fee['initial_fee'], $invoice->get_currency() );
+												echo wpinv_price($subscription_group_fee['initial_fee'], $invoice->get_currency());
 												break;
 
 											case 'recurring':
-												echo '<strong>' . wpinv_price( $subscription_group_fee['recurring_fee'], $invoice->get_currency() ) . '</strong>';
+												echo '<strong>' . wpinv_price($subscription_group_fee['recurring_fee'], $invoice->get_currency()) . '</strong>';
 												break;
 
 										}
@@ -748,12 +748,12 @@ 
  * @param WPInv_Subscription $subscription
  * @param bool $skip_current
  */
-function getpaid_admin_subscription_related_subscriptions_metabox( $subscription, $skip_current = true ) {
+function getpaid_admin_subscription_related_subscriptions_metabox($subscription, $skip_current = true) {
 
 	// Fetch the subscription groups.
-	$subscription_groups = getpaid_get_invoice_subscription_groups( $subscription->get_parent_payment_id() );
+	$subscription_groups = getpaid_get_invoice_subscription_groups($subscription->get_parent_payment_id());
 
-	if ( empty( $subscription_groups ) ) {
+	if (empty($subscription_groups)) {
 		return;
 	}
 
@@ -761,23 +761,23 @@ 
 	$columns = apply_filters(
 		'getpaid_subscription_related_subscriptions_columns',
 		array(
-			'subscription'      => __( 'Subscription', 'invoicing' ),
-			'start_date'        => __( 'Start Date', 'invoicing' ),
-			'renewal_date'      => __( 'Next Payment', 'invoicing' ),
-			'renewals'          => __( 'Payments', 'invoicing' ),
-			'item'              => __( 'Items', 'invoicing' ),
-			'status'            => __( 'Status', 'invoicing' ),
+			'subscription'      => __('Subscription', 'invoicing'),
+			'start_date'        => __('Start Date', 'invoicing'),
+			'renewal_date'      => __('Next Payment', 'invoicing'),
+			'renewals'          => __('Payments', 'invoicing'),
+			'item'              => __('Items', 'invoicing'),
+			'status'            => __('Status', 'invoicing'),
 		),
 		$subscription
 	);
 
-	if ( $subscription->get_status() == 'pending' ) {
-		unset( $columns['start_date'], $columns['renewal_date'] );
+	if ($subscription->get_status() == 'pending') {
+		unset($columns['start_date'], $columns['renewal_date']);
 	}
 
 	$table_class = 'w-100 bg-white';
 
-	if ( ! is_admin() ) {
+	if (!is_admin()) {
 		$table_class = 'table table-bordered';
 	}
 
@@ -790,9 +790,9 @@ 
 					<tr>
 						<?php
 
-							foreach ( $columns as $key => $label ) {
-								$key   = esc_attr( $key );
-								$label = esc_html( $label );
+							foreach ($columns as $key => $label) {
+								$key   = esc_attr($key);
+								$label = esc_html($label);
 								$class = 'text-left';
 
 								echo "<th class='related-subscription-field-$key bg-light p-2 $class color-dark font-weight-bold'>$label</th>";
@@ -805,62 +805,62 @@ 
 
 					<?php
 
-						foreach( $subscription_groups as $subscription_group ) :
+						foreach ($subscription_groups as $subscription_group) :
 
 							// Do not list current subscription.
-							if ( $skip_current && (int) $subscription_group['subscription_id'] === $subscription->get_id() ) {
+							if ($skip_current && (int) $subscription_group['subscription_id'] === $subscription->get_id()) {
 								continue;
 							}
 
 							// Ensure the subscription exists.
-							$_suscription = new WPInv_Subscription( $subscription_group['subscription_id'] );
+							$_suscription = new WPInv_Subscription($subscription_group['subscription_id']);
 
-							if ( ! $_suscription->exists() ) {
+							if (!$_suscription->exists()) {
 								continue;
 							}
 
 							echo '<tr>';
 
-								foreach ( array_keys( $columns ) as $key ) {
+								foreach (array_keys($columns) as $key) {
 
 									$class = 'text-left';
 
 									echo "<td class='p-2 $class'>";
 
-										switch( $key ) {
+										switch ($key) {
 
 											case 'status':
 												echo $_suscription->get_status_label_html();
 												break;
 
 											case 'item':
-												$markup = array_map( array( 'WPInv_Subscriptions_List_Table', 'generate_item_markup' ), array_keys( $subscription_group['items'] ) );
-												echo implode( ' | ', $markup );
+												$markup = array_map(array('WPInv_Subscriptions_List_Table', 'generate_item_markup'), array_keys($subscription_group['items']));
+												echo implode(' | ', $markup);
 												break;
 
 											case 'renewals':
 												$max_bills = $_suscription->get_bill_times();
-												echo $_suscription->get_times_billed() . ' / ' . ( empty( $max_bills ) ? "&infin;" : $max_bills );
+												echo $_suscription->get_times_billed() . ' / ' . (empty($max_bills) ? "&infin;" : $max_bills);
 												break;
 
 											case 'renewal_date':
-												echo $_suscription->is_active() ? getpaid_format_date_value( $_suscription->get_expiration() ) : "&mdash;";
+												echo $_suscription->is_active() ? getpaid_format_date_value($_suscription->get_expiration()) : "&mdash;";
 												break;
 
 											case 'start_date':
-												echo 'pending' == $_suscription->get_status() ? "&mdash;" : getpaid_format_date_value( $_suscription->get_date_created() );
+												echo 'pending' == $_suscription->get_status() ? "&mdash;" : getpaid_format_date_value($_suscription->get_date_created());
 												break;
 
 											case 'subscription':
-												$url = is_admin() ? admin_url( 'admin.php?page=wpinv-subscriptions&id=' . absint( $_suscription->get_id() ) ) : $_suscription->get_view_url();
+												$url = is_admin() ? admin_url('admin.php?page=wpinv-subscriptions&id=' . absint($_suscription->get_id())) : $_suscription->get_view_url();
 												printf(
 													'%1$s#%2$s%3$s',
-													'<a href="' . esc_url( $url ) . '">',
-													'<strong>' . intval( $_suscription->get_id() ) . '</strong>',
+													'<a href="' . esc_url($url) . '">',
+													'<strong>' . intval($_suscription->get_id()) . '</strong>',
 													'</a>'
 												);
 
-												echo WPInv_Subscriptions_List_Table::column_amount( $_suscription );
+												echo WPInv_Subscriptions_List_Table::column_amount($_suscription);
 												break;
 
 										}