AyeCode / invoicing

includes/subscription-functions.php

Indentation +307 added lines, -307 removed lines

@@ -50,7 +50,7 @@ 
  */
 function getpaid_get_invoice_subscription_group( $invoice_id, $subscription_id ) {
     $subscription_groups = getpaid_get_invoice_subscription_groups( $invoice_id );
-	$matching_group      = wp_list_filter( $subscription_groups, compact( 'subscription_id' ) );
+    $matching_group      = wp_list_filter( $subscription_groups, compact( 'subscription_id' ) );
     return reset( $matching_group );
 }
 
@@ -63,11 +63,11 @@ 
  */
 function getpaid_get_subscription( $subscription ) {
 
-	if ( ! is_a( $subscription, 'WPInv_Subscription' ) ) {
-		$subscription = new WPInv_Subscription( $subscription );
-	}
+    if ( ! is_a( $subscription, 'WPInv_Subscription' ) ) {
+        $subscription = new WPInv_Subscription( $subscription );
+    }
 
-	return $subscription->exists() ? $subscription : false;
+    return $subscription->exists() ? $subscription : false;
 }
 
 /**
@@ -81,28 +81,28 @@ 
  */
 function getpaid_get_subscriptions( $args = array(), $return = 'results' ) {
 
-	// Do not retrieve all fields if we just want the count.
-	if ( 'count' == $return ) {
-		$args['fields'] = 'id';
-		$args['number'] = 1;
-	}
+    // Do not retrieve all fields if we just want the count.
+    if ( 'count' == $return ) {
+        $args['fields'] = 'id';
+        $args['number'] = 1;
+    }
 
-	// Do not count all matches if we just want the results.
-	if ( 'results' == $return ) {
-		$args['count_total'] = false;
-	}
+    // Do not count all matches if we just want the results.
+    if ( 'results' == $return ) {
+        $args['count_total'] = false;
+    }
 
-	$query = new GetPaid_Subscriptions_Query( $args );
+    $query = new GetPaid_Subscriptions_Query( $args );
 
-	if ( 'results' == $return ) {
-		return $query->get_results();
-	}
+    if ( 'results' == $return ) {
+        return $query->get_results();
+    }
 
-	if ( 'count' == $return ) {
-		return $query->get_total();
-	}
+    if ( 'count' == $return ) {
+        return $query->get_total();
+    }
 
-	return $query;
+    return $query;
 }
 
 /**
@@ -112,18 +112,18 @@ 
  */
 function getpaid_get_subscription_statuses() {
 
-	return apply_filters(
-		'getpaid_get_subscription_statuses',
-		array(
-			'pending'    => __( 'Pending', 'invoicing' ),
-			'trialling'  => __( 'Trialing', 'invoicing' ),
-			'active'     => __( 'Active', 'invoicing' ),
-			'failing'    => __( 'Failing', 'invoicing' ),
-			'expired'    => __( 'Expired', 'invoicing' ),
-			'completed'  => __( 'Complete', 'invoicing' ),
-			'cancelled'  => __( 'Cancelled', 'invoicing' ),
-		)
-	);
+    return apply_filters(
+        'getpaid_get_subscription_statuses',
+        array(
+            'pending'    => __( 'Pending', 'invoicing' ),
+            'trialling'  => __( 'Trialing', 'invoicing' ),
+            'active'     => __( 'Active', 'invoicing' ),
+            'failing'    => __( 'Failing', 'invoicing' ),
+            'expired'    => __( 'Expired', 'invoicing' ),
+            'completed'  => __( 'Complete', 'invoicing' ),
+            'cancelled'  => __( 'Cancelled', 'invoicing' ),
+        )
+    );
 
 }
 
@@ -133,8 +133,8 @@ 
  * @return string
  */
 function getpaid_get_subscription_status_label( $status ) {
-	$statuses = getpaid_get_subscription_statuses();
-	return isset( $statuses[ $status ] ) ? $statuses[ $status ] : ucfirst( sanitize_text_field( $status ) );
+    $statuses = getpaid_get_subscription_statuses();
+    return isset( $statuses[ $status ] ) ? $statuses[ $status ] : ucfirst( sanitize_text_field( $status ) );
 }
 
 /**
@@ -144,18 +144,18 @@ 
  */
 function getpaid_get_subscription_status_classes() {
 
-	return apply_filters(
-		'getpaid_get_subscription_status_classes',
-		array(
-			'pending'    => 'badge-dark',
-			'trialling'  => 'badge-info',
-			'active'     => 'badge-success',
-			'failing'    => 'badge-warning',
-			'expired'    => 'badge-danger',
-			'completed'  => 'badge-primary',
-			'cancelled'  => 'badge-secondary',
-		)
-	);
+    return apply_filters(
+        'getpaid_get_subscription_status_classes',
+        array(
+            'pending'    => 'badge-dark',
+            'trialling'  => 'badge-info',
+            'active'     => 'badge-success',
+            'failing'    => 'badge-warning',
+            'expired'    => 'badge-danger',
+            'completed'  => 'badge-primary',
+            'cancelled'  => 'badge-secondary',
+        )
+    );
 
 }
 
@@ -166,15 +166,15 @@ 
  */
 function getpaid_get_subscription_status_counts( $args = array() ) {
 
-	$statuses = array_keys( getpaid_get_subscription_statuses() );
-	$counts   = array();
+    $statuses = array_keys( getpaid_get_subscription_statuses() );
+    $counts   = array();
 
-	foreach ( $statuses as $status ) {
-		$_args             = wp_parse_args( "status=$status", $args );
-		$counts[ $status ] = getpaid_get_subscriptions( $_args, 'count' );
-	}
+    foreach ( $statuses as $status ) {
+        $_args             = wp_parse_args( "status=$status", $args );
+        $counts[ $status ] = getpaid_get_subscriptions( $_args, 'count' );
+    }
 
-	return $counts;
+    return $counts;
 
 }
 
@@ -185,32 +185,32 @@ 
  */
 function getpaid_get_subscription_periods() {
 
-	return apply_filters(
-		'getpaid_get_subscription_periods',
-		array(
+    return apply_filters(
+        'getpaid_get_subscription_periods',
+        array(
 
-			'day'   => array(
-				'singular' => __( '%s day', 'invoicing' ),
-				'plural'   => __( '%d days', 'invoicing' ),
-			),
+            'day'   => array(
+                'singular' => __( '%s day', 'invoicing' ),
+                'plural'   => __( '%d days', 'invoicing' ),
+            ),
 
-			'week'   => array(
-				'singular' => __( '%s week', 'invoicing' ),
-				'plural'   => __( '%d weeks', 'invoicing' ),
-			),
+            'week'   => array(
+                'singular' => __( '%s week', 'invoicing' ),
+                'plural'   => __( '%d weeks', 'invoicing' ),
+            ),
 
-			'month'   => array(
-				'singular' => __( '%s month', 'invoicing' ),
-				'plural'   => __( '%d months', 'invoicing' ),
-			),
+            'month'   => array(
+                'singular' => __( '%s month', 'invoicing' ),
+                'plural'   => __( '%d months', 'invoicing' ),
+            ),
 
-			'year'   => array(
-				'singular' => __( '%s year', 'invoicing' ),
-				'plural'   => __( '%d years', 'invoicing' ),
-			),
+            'year'   => array(
+                'singular' => __( '%s year', 'invoicing' ),
+                'plural'   => __( '%d years', 'invoicing' ),
+            ),
 
-		)
-	);
+        )
+    );
 
 }
 
@@ -221,7 +221,7 @@ 
  * @return int
  */
 function getpaid_get_subscription_trial_period_interval( $trial_period ) {
-	return (int) preg_replace( '/[^0-9]/', '', $trial_period );
+    return (int) preg_replace( '/[^0-9]/', '', $trial_period );
 }
 
 /**
@@ -231,7 +231,7 @@ 
  * @return string
  */
 function getpaid_get_subscription_trial_period_period( $trial_period ) {
-	return preg_replace( '/[^a-z]/', '', strtolower( $trial_period ) );
+    return preg_replace( '/[^a-z]/', '', strtolower( $trial_period ) );
 }
 
 /**
@@ -242,8 +242,8 @@ 
  * @return string
  */
 function getpaid_get_subscription_period_label( $period, $interval = 1, $singular_prefix = '1' ) {
-	$label = (int) $interval > 1 ? getpaid_get_plural_subscription_period_label(  $period, $interval ) : getpaid_get_singular_subscription_period_label( $period, $singular_prefix );
-	return strtolower( sanitize_text_field( $label ) );
+    $label = (int) $interval > 1 ? getpaid_get_plural_subscription_period_label(  $period, $interval ) : getpaid_get_singular_subscription_period_label( $period, $singular_prefix );
+    return strtolower( sanitize_text_field( $label ) );
 }
 
 /**
@@ -254,22 +254,22 @@ 
  */
 function getpaid_get_singular_subscription_period_label( $period, $singular_prefix = '1' ) {
 
-	$periods = getpaid_get_subscription_periods();
-	$period  = strtolower( $period );
+    $periods = getpaid_get_subscription_periods();
+    $period  = strtolower( $period );
 
-	if ( isset( $periods[ $period ] ) ) {
-		return sprintf( $periods[ $period ]['singular'], $singular_prefix );
-	}
+    if ( isset( $periods[ $period ] ) ) {
+        return sprintf( $periods[ $period ]['singular'], $singular_prefix );
+    }
 
-	// Backwards compatibility.
-	foreach ( $periods as $key => $data ) {
-		if ( strpos( $key, $period ) === 0 ) {
-			return sprintf( $data['singular'], $singular_prefix );
-		}
-	}
+    // Backwards compatibility.
+    foreach ( $periods as $key => $data ) {
+        if ( strpos( $key, $period ) === 0 ) {
+            return sprintf( $data['singular'], $singular_prefix );
+        }
+    }
 
-	// Invalid string.
-	return '';
+    // Invalid string.
+    return '';
 }
 
 /**
@@ -281,22 +281,22 @@ 
  */
 function getpaid_get_plural_subscription_period_label( $period, $interval ) {
 
-	$periods = getpaid_get_subscription_periods();
-	$period  = strtolower( $period );
+    $periods = getpaid_get_subscription_periods();
+    $period  = strtolower( $period );
 
-	if ( isset( $periods[ $period ] ) ) {
-		return sprintf( $periods[ $period ]['plural'], $interval );
-	}
+    if ( isset( $periods[ $period ] ) ) {
+        return sprintf( $periods[ $period ]['plural'], $interval );
+    }
 
-	// Backwards compatibility.
-	foreach ( $periods as $key => $data ) {
-		if ( strpos( $key, $period ) === 0 ) {
-			return sprintf( $data['plural'], $interval );
-		}
-	}
+    // Backwards compatibility.
+    foreach ( $periods as $key => $data ) {
+        if ( strpos( $key, $period ) === 0 ) {
+            return sprintf( $data['plural'], $interval );
+        }
+    }
 
-	// Invalid string.
-	return '';
+    // Invalid string.
+    return '';
 }
 
 /**
@@ -307,101 +307,101 @@ 
  */
 function getpaid_get_formatted_subscription_amount( $subscription ) {
 
-	$initial    = wpinv_price( $subscription->get_initial_amount(), $subscription->get_parent_payment()->get_currency() );
-	$recurring  = wpinv_price( $subscription->get_recurring_amount(), $subscription->get_parent_payment()->get_currency() );
-	$period     = getpaid_get_subscription_period_label( $subscription->get_period(), $subscription->get_frequency(), '' );
-	$bill_times = $subscription->get_bill_times();
+    $initial    = wpinv_price( $subscription->get_initial_amount(), $subscription->get_parent_payment()->get_currency() );
+    $recurring  = wpinv_price( $subscription->get_recurring_amount(), $subscription->get_parent_payment()->get_currency() );
+    $period     = getpaid_get_subscription_period_label( $subscription->get_period(), $subscription->get_frequency(), '' );
+    $bill_times = $subscription->get_bill_times();
 
-	if ( ! empty( $bill_times ) ) {
-		$bill_times = $subscription->get_frequency() * $bill_times;
-		$bill_times = getpaid_get_subscription_period_label( $subscription->get_period(), $bill_times );
-	}
+    if ( ! empty( $bill_times ) ) {
+        $bill_times = $subscription->get_frequency() * $bill_times;
+        $bill_times = getpaid_get_subscription_period_label( $subscription->get_period(), $bill_times );
+    }
 
-	// Trial periods.
-	if ( $subscription->has_trial_period() ) {
+    // Trial periods.
+    if ( $subscription->has_trial_period() ) {
 
-		$trial_period   = getpaid_get_subscription_trial_period_period( $subscription->get_trial_period() );
-		$trial_interval = getpaid_get_subscription_trial_period_interval( $subscription->get_trial_period() );
+        $trial_period   = getpaid_get_subscription_trial_period_period( $subscription->get_trial_period() );
+        $trial_interval = getpaid_get_subscription_trial_period_interval( $subscription->get_trial_period() );
 
-		if ( empty( $bill_times ) ) {
+        if ( empty( $bill_times ) ) {
 
-			return sprintf(
+            return sprintf(
 
-				// translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
-				_x( '%1$s trial for %2$s then %3$s / %4$s', 'Subscription amount. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
-				$initial,
-				getpaid_get_subscription_period_label( $trial_period, $trial_interval ),
-				$recurring,
-				$period
+                // translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period
+                _x( '%1$s trial for %2$s then %3$s / %4$s', 'Subscription amount. (e.g.: $10 trial for 1 month then $120 / year)', 'invoicing' ),
+                $initial,
+                getpaid_get_subscription_period_label( $trial_period, $trial_interval ),
+                $recurring,
+                $period
 	
-			);
+            );
 
-		}
+        }
 
-		return sprintf(
+        return sprintf(
 
-			// translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period, $5: is the bill times
-			_x( '%1$s trial for %2$s then %3$s / %4$s for %5$s', 'Subscription amount. (e.g.: $10 trial for 1 month then $120 / year for 4 years)', 'invoicing' ),
-			$initial,
-			getpaid_get_subscription_period_label( $trial_period, $trial_interval ),
-			$recurring,
-			$period,
-			$bill_times
-		);
+            // translators: $1: is the initial amount, $2: is the trial period, $3: is the recurring amount, $4: is the recurring period, $5: is the bill times
+            _x( '%1$s trial for %2$s then %3$s / %4$s for %5$s', 'Subscription amount. (e.g.: $10 trial for 1 month then $120 / year for 4 years)', 'invoicing' ),
+            $initial,
+            getpaid_get_subscription_period_label( $trial_period, $trial_interval ),
+            $recurring,
+            $period,
+            $bill_times
+        );
 
-	}
+    }
 
-	if ( $initial != $recurring ) {
+    if ( $initial != $recurring ) {
 
-		if ( empty( $bill_times ) ) {
+        if ( empty( $bill_times ) ) {
 
-			return sprintf(
+            return sprintf(
 
-				// translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring period
-				_x( 'Initial payment of %1$s which renews at %2$s / %3$s', 'Subscription amount. (e.g.:Initial payment of $100 which renews at $120 / year)', 'invoicing' ),
-				$initial,
-				$recurring,
-				$period
+                // translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring period
+                _x( 'Initial payment of %1$s which renews at %2$s / %3$s', 'Subscription amount. (e.g.:Initial payment of $100 which renews at $120 / year)', 'invoicing' ),
+                $initial,
+                $recurring,
+                $period
 	
-			);
+            );
 
-		}
+        }
 
-		return sprintf(
+        return sprintf(
 
-			// translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring period, $4: is the bill times
-			_x( 'Initial payment of %1$s which renews at %2$s / %3$s for %4$s', 'Subscription amount. (e.g.:Initial payment of $100 which renews at $120 / year for 5 years)', 'invoicing' ),
-			$initial,
-			$recurring,
-			$period,
-			$bill_times
+            // translators: $1: is the initial amount, $2: is the recurring amount, $3: is the recurring period, $4: is the bill times
+            _x( 'Initial payment of %1$s which renews at %2$s / %3$s for %4$s', 'Subscription amount. (e.g.:Initial payment of $100 which renews at $120 / year for 5 years)', 'invoicing' ),
+            $initial,
+            $recurring,
+            $period,
+            $bill_times
 
-		);
+        );
 
-	}
+    }
 
-	if ( empty( $bill_times ) ) {
+    if ( empty( $bill_times ) ) {
 
-		return sprintf(
+        return sprintf(
 
-			// translators: $1: is the recurring amount, $2: is the recurring period
-			_x( '%1$s / %2$s', 'Subscription amount. (e.g.: $120 / year)', 'invoicing' ),
-			$initial,
-			$period
+            // translators: $1: is the recurring amount, $2: is the recurring period
+            _x( '%1$s / %2$s', 'Subscription amount. (e.g.: $120 / year)', 'invoicing' ),
+            $initial,
+            $period
 	
-		);
+        );
 
-	}
+    }
 
-	return sprintf(
+    return sprintf(
 
-		// translators: $1: is the bill times, $2: is the recurring amount, $3: is the recurring period
-		_x( '%2$s / %3$s for %1$s', 'Subscription amount. (e.g.: $120 / year for 5 years)', 'invoicing' ),
-		$bill_times,
-		$initial,
-		$period
+        // translators: $1: is the bill times, $2: is the recurring amount, $3: is the recurring period
+        _x( '%2$s / %3$s for %1$s', 'Subscription amount. (e.g.: $120 / year for 5 years)', 'invoicing' ),
+        $bill_times,
+        $initial,
+        $period
 
-	);
+    );
 
 }
 
@@ -412,7 +412,7 @@ 
  * @return WPInv_Subscription|false
  */
 function getpaid_get_invoice_subscription( $invoice ) {
-	return getpaid_subscriptions()->get_invoice_subscription( $invoice );
+    return getpaid_subscriptions()->get_invoice_subscription( $invoice );
 }
 
 /**
@@ -421,10 +421,10 @@ 
  * @param WPInv_Invoice $invoice
  */
 function getpaid_activate_invoice_subscription( $invoice ) {
-	$subscription = getpaid_get_invoice_subscription( $invoice );
-	if ( is_a( $subscription, 'WPInv_Subscription' ) ) {
-		$subscription->activate();
-	}
+    $subscription = getpaid_get_invoice_subscription( $invoice );
+    if ( is_a( $subscription, 'WPInv_Subscription' ) ) {
+        $subscription->activate();
+    }
 }
 
 /**
@@ -433,7 +433,7 @@ 
  * @return WPInv_Subscriptions
  */
 function getpaid_subscriptions() {
-	return getpaid()->get( 'subscriptions' );
+    return getpaid()->get( 'subscriptions' );
 }
 
 /**
@@ -452,15 +452,15 @@ 
         return false;
     }
 
-	// Fetch the invoice subscription.
-	$subscription = getpaid_get_subscriptions(
-		array(
-			'invoice_in' => $invoice->is_renewal() ? $invoice->get_parent_id() : $invoice->get_id(),
-			'number'     => 1,
-		)
-	);
+    // Fetch the invoice subscription.
+    $subscription = getpaid_get_subscriptions(
+        array(
+            'invoice_in' => $invoice->is_renewal() ? $invoice->get_parent_id() : $invoice->get_id(),
+            'number'     => 1,
+        )
+    );
 
-	return empty( $subscription ) ? false : $subscription[0];
+    return empty( $subscription ) ? false : $subscription[0];
 
 }
 
@@ -477,48 +477,48 @@ 
  */
 function getpaid_get_recurring_item_key( $cart_item ) {
 
-	$cart_key     = 'renews_';
-	$interval     = $cart_item->get_recurring_interval();
-	$period       = $cart_item->get_recurring_period( true );
-	$length       = $cart_item->get_recurring_limit() * $interval;
-	$trial_period = $cart_item->get_trial_period( true );
-	$trial_length = $cart_item->get_trial_interval();
-
-	// First start with the billing interval and period
-	switch ( $interval ) {
-		case 1 :
-			if ( 'day' == $period ) {
-				$cart_key .= 'daily';
-			} else {
-				$cart_key .= sprintf( '%sly', $period );
-			}
-			break;
-		case 2 :
-			$cart_key .= sprintf( 'every_2nd_%s', $period );
-			break;
-		case 3 :
-			$cart_key .= sprintf( 'every_3rd_%s', $period );
-		break;
-		default:
-			$cart_key .= sprintf( 'every_%dth_%s', $interval, $period );
-			break;
-	}
-
-	// Maybe add the optional maximum billing periods...
-	if ( $length > 0 ) {
-		$cart_key .= '_for_';
-		$cart_key .= sprintf( '%d_%s', $length, $period );
-		if ( $length > 1 ) {
-			$cart_key .= 's';
-		}
-	}
-
-	// And an optional free trial.
-	if ( $cart_item->has_free_trial() ) {
-		$cart_key .= sprintf( '_after_a_%d_%s_trial', $trial_length, $trial_period );
-	}
-
-	return apply_filters( 'getpaid_get_recurring_item_key', $cart_key, $cart_item );
+    $cart_key     = 'renews_';
+    $interval     = $cart_item->get_recurring_interval();
+    $period       = $cart_item->get_recurring_period( true );
+    $length       = $cart_item->get_recurring_limit() * $interval;
+    $trial_period = $cart_item->get_trial_period( true );
+    $trial_length = $cart_item->get_trial_interval();
+
+    // First start with the billing interval and period
+    switch ( $interval ) {
+        case 1 :
+            if ( 'day' == $period ) {
+                $cart_key .= 'daily';
+            } else {
+                $cart_key .= sprintf( '%sly', $period );
+            }
+            break;
+        case 2 :
+            $cart_key .= sprintf( 'every_2nd_%s', $period );
+            break;
+        case 3 :
+            $cart_key .= sprintf( 'every_3rd_%s', $period );
+        break;
+        default:
+            $cart_key .= sprintf( 'every_%dth_%s', $interval, $period );
+            break;
+    }
+
+    // Maybe add the optional maximum billing periods...
+    if ( $length > 0 ) {
+        $cart_key .= '_for_';
+        $cart_key .= sprintf( '%d_%s', $length, $period );
+        if ( $length > 1 ) {
+            $cart_key .= 's';
+        }
+    }
+
+    // And an optional free trial.
+    if ( $cart_item->has_free_trial() ) {
+        $cart_key .= sprintf( '_after_a_%d_%s_trial', $trial_length, $trial_period );
+    }
+
+    return apply_filters( 'getpaid_get_recurring_item_key', $cart_key, $cart_item );
 }
 
 /**
@@ -529,17 +529,17 @@ 
  */
 function getpaid_get_subscription_groups( $invoice ) {
 
-	// Generate subscription groups.
-	$subscription_groups = array();
-	foreach ( $invoice->get_items() as $item ) {
+    // Generate subscription groups.
+    $subscription_groups = array();
+    foreach ( $invoice->get_items() as $item ) {
 
-		if ( $item->is_recurring() ) {
-			$subscription_groups[ getpaid_get_recurring_item_key( $item ) ][] = $item;
-		}
+        if ( $item->is_recurring() ) {
+            $subscription_groups[ getpaid_get_recurring_item_key( $item ) ][] = $item;
+        }
 
-	}
+    }
 
-	return $subscription_groups;
+    return $subscription_groups;
 }
 
 /**
@@ -553,57 +553,57 @@ 
  */
 function getpaid_calculate_subscription_totals( $invoice ) {
 
-	// Generate subscription groups.
-	$subscription_groups = getpaid_get_subscription_groups( $invoice );
+    // Generate subscription groups.
+    $subscription_groups = getpaid_get_subscription_groups( $invoice );
 
-	// Now let's calculate the totals for each group of subscriptions
-	$subscription_totals = array();
+    // Now let's calculate the totals for each group of subscriptions
+    $subscription_totals = array();
 
-	foreach ( $subscription_groups as $subscription_key => $items ) {
+    foreach ( $subscription_groups as $subscription_key => $items ) {
 
-		if ( empty( $subscription_totals[ $subscription_key ] ) ) {
+        if ( empty( $subscription_totals[ $subscription_key ] ) ) {
 
-			$subscription_totals[ $subscription_key ] = array(
-				'initial_total'   => 0,
-				'recurring_total' => 0,
-				'items'           => array(),
-				'trialling'       => false,
-			);
+            $subscription_totals[ $subscription_key ] = array(
+                'initial_total'   => 0,
+                'recurring_total' => 0,
+                'items'           => array(),
+                'trialling'       => false,
+            );
 
-		}
+        }
 
-		/**
-		 * Get the totals of the group.
-		 * @var GetPaid_Form_Item $item
-		 */
-		foreach ( $items as $item ) {
+        /**
+         * Get the totals of the group.
+         * @var GetPaid_Form_Item $item
+         */
+        foreach ( $items as $item ) {
 
-			$subscription_totals[ $subscription_key ]['items'][$item->get_id()]  = $item->prepare_data_for_saving();
-			$subscription_totals[ $subscription_key ]['item_id']                 = $item->get_id();
-			$subscription_totals[ $subscription_key ]['period']                  = $item->get_recurring_period( true );
-			$subscription_totals[ $subscription_key ]['interval']                = $item->get_recurring_interval();
-			$subscription_totals[ $subscription_key ]['initial_total']          += $item->get_sub_total();
-			$subscription_totals[ $subscription_key ]['recurring_total']        += $item->get_recurring_sub_total();
-			$subscription_totals[ $subscription_key ]['recurring_limit']         = $item->get_recurring_limit();
+            $subscription_totals[ $subscription_key ]['items'][$item->get_id()]  = $item->prepare_data_for_saving();
+            $subscription_totals[ $subscription_key ]['item_id']                 = $item->get_id();
+            $subscription_totals[ $subscription_key ]['period']                  = $item->get_recurring_period( true );
+            $subscription_totals[ $subscription_key ]['interval']                = $item->get_recurring_interval();
+            $subscription_totals[ $subscription_key ]['initial_total']          += $item->get_sub_total();
+            $subscription_totals[ $subscription_key ]['recurring_total']        += $item->get_recurring_sub_total();
+            $subscription_totals[ $subscription_key ]['recurring_limit']         = $item->get_recurring_limit();
 
-			// Calculate the next renewal date.
-			$period       = $item->get_recurring_period( true );
-			$interval     = $item->get_recurring_interval();
+            // Calculate the next renewal date.
+            $period       = $item->get_recurring_period( true );
+            $interval     = $item->get_recurring_interval();
 
-			// If the subscription item has a trial period...
-			if ( $item->has_free_trial() ) {
-				$period   = $item->get_trial_period( true );
-				$interval = $item->get_trial_interval();
-				$subscription_totals[ $subscription_key ]['trialling'] = $interval . ' ' . $period;
-			}
+            // If the subscription item has a trial period...
+            if ( $item->has_free_trial() ) {
+                $period   = $item->get_trial_period( true );
+                $interval = $item->get_trial_interval();
+                $subscription_totals[ $subscription_key ]['trialling'] = $interval . ' ' . $period;
+            }
 
-			$subscription_totals[ $subscription_key ]['renews_on'] = date( 'Y-m-d H:i:s', strtotime( "+$interval $period", current_time( 'timestamp' ) ) );
+            $subscription_totals[ $subscription_key ]['renews_on'] = date( 'Y-m-d H:i:s', strtotime( "+$interval $period", current_time( 'timestamp' ) ) );
 
-		}
+        }
 
-	}
+    }
 
-	return apply_filters( 'getpaid_calculate_subscription_totals', $subscription_totals, $invoice );
+    return apply_filters( 'getpaid_calculate_subscription_totals', $subscription_totals, $invoice );
 }
 
 /**
@@ -614,17 +614,17 @@ 
  */
 function getpaid_should_group_subscriptions( $invoice ) {
 
-	$recurring_items = 0;
+    $recurring_items = 0;
 
-	foreach ( $invoice->get_items() as $item ) {
+    foreach ( $invoice->get_items() as $item ) {
 
-		if ( $item->is_recurring() ) {
-			$recurring_items ++;
-		}
+        if ( $item->is_recurring() ) {
+            $recurring_items ++;
+        }
 
-	}
+    }
 
-	return apply_filters( 'getpaid_should_group_subscriptions', $recurring_items > 1, $invoice );
+    return apply_filters( 'getpaid_should_group_subscriptions', $recurring_items > 1, $invoice );
 }
 
 /**
@@ -635,40 +635,40 @@ 
  * @return int
  */
 function getpaid_count_subscription_invoices( $parent_invoice_id, $subscription_id = false ) {
-	global $wpdb;
+    global $wpdb;
 
-	$parent_invoice_id = (int) $parent_invoice_id;
+    $parent_invoice_id = (int) $parent_invoice_id;
 
-	if ( false === $subscription_id || ! (bool) get_post_meta( $parent_invoice_id, '_wpinv_subscription_id', true ) ) {
+    if ( false === $subscription_id || ! (bool) get_post_meta( $parent_invoice_id, '_wpinv_subscription_id', true ) ) {
 
-		return (int) $wpdb->get_var(
-			$wpdb->prepare(
-				"SELECT COUNT(ID) FROM $wpdb->posts WHERE ( post_parent=%d OR ID=%d ) AND post_status IN ( 'publish', 'wpi-processing', 'wpi-renewal' )",
-				$parent_invoice_id,
-				$parent_invoice_id
-			)
-		);
+        return (int) $wpdb->get_var(
+            $wpdb->prepare(
+                "SELECT COUNT(ID) FROM $wpdb->posts WHERE ( post_parent=%d OR ID=%d ) AND post_status IN ( 'publish', 'wpi-processing', 'wpi-renewal' )",
+                $parent_invoice_id,
+                $parent_invoice_id
+            )
+        );
 
-	}
+    }
 	
-	$invoice_ids = $wpdb->get_col(
-		$wpdb->prepare(
-			"SELECT ID FROM $wpdb->posts WHERE ( post_parent=%d OR ID=%d ) AND post_status IN ( 'publish', 'wpi-processing', 'wpi-renewal' )",
-			$parent_invoice_id,
-			$parent_invoice_id
-		)
-	);
+    $invoice_ids = $wpdb->get_col(
+        $wpdb->prepare(
+            "SELECT ID FROM $wpdb->posts WHERE ( post_parent=%d OR ID=%d ) AND post_status IN ( 'publish', 'wpi-processing', 'wpi-renewal' )",
+            $parent_invoice_id,
+            $parent_invoice_id
+        )
+    );
 
-	$count = 0;
+    $count = 0;
 
-	foreach ( wp_parse_id_list( $invoice_ids ) as $invoice_id ) {
+    foreach ( wp_parse_id_list( $invoice_ids ) as $invoice_id ) {
 
-		if ( $invoice_id == $parent_invoice_id || $subscription_id == (int) get_post_meta( $invoice_id, '_wpinv_subscription_id', true ) ) {
-			$count ++;
-			continue;
-		}
+        if ( $invoice_id == $parent_invoice_id || $subscription_id == (int) get_post_meta( $invoice_id, '_wpinv_subscription_id', true ) ) {
+            $count ++;
+            continue;
+        }
 
-	}
+    }
 
-	return $count;
+    return $count;
 }

includes/wpinv-subscription.php

Indentation +1035 added lines, -1035 removed lines

@@ -15,125 +15,125 @@ 
  */
 class WPInv_Subscription extends GetPaid_Data {
 
-	/**
-	 * Which data store to load.
-	 *
-	 * @var string
-	 */
-	protected $data_store_name = 'subscription';
-
-	/**
-	 * This is the name of this object type.
-	 *
-	 * @var string
-	 */
-	protected $object_type = 'subscription';
-
-	/**
-	 * Item Data array. This is the core item data exposed in APIs.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $data = array(
-		'customer_id'       => 0,
-		'frequency'         => 1,
-		'period'            => 'D',
-		'initial_amount'    => null,
-		'recurring_amount'  => null,
-		'bill_times'        => 0,
-		'transaction_id'    => '',
-		'parent_payment_id' => null,
-		'product_id'        => 0,
-		'created'           => '0000-00-00 00:00:00',
-		'expiration'        => '0000-00-00 00:00:00',
-		'trial_period'      => '',
-		'status'            => 'pending',
-		'profile_id'        => '',
-		'gateway'           => '',
-		'customer'          => '',
-	);
-
-	/**
-	 * Stores the status transition information.
-	 *
-	 * @since 1.0.19
-	 * @var bool
-	 */
-	protected $status_transition = false;
-
-	/**
-	 * Get the subscription if ID is passed, otherwise the subscription is new and empty.
-	 *
-	 * @param  int|string|object|WPInv_Subscription $subscription Subscription id, profile_id, or object to read.
-	 * @param  bool $deprecated
-	 */
-	function __construct( $subscription = 0, $deprecated = false ) {
-
-		parent::__construct( $subscription );
-
-		if ( ! $deprecated && ! empty( $subscription ) && is_numeric( $subscription ) ) {
-			$this->set_id( $subscription );
-		} elseif ( $subscription instanceof self ) {
-			$this->set_id( $subscription->get_id() );
-		} elseif ( $deprecated && $subscription_id = self::get_subscription_id_by_field( $subscription, 'profile_id' ) ) {
-			$this->set_id( $subscription_id );
-		} elseif ( ! empty( $subscription->id ) ) {
-			$this->set_id( $subscription->id );
-		} else {
-			$this->set_object_read( true );
-		}
-
-		// Load the datastore.
-		$this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
-
-		if ( $this->get_id() > 0 ) {
-			$this->data_store->read( $this );
-		}
-
-	}
-
-	/**
-	 * Given an invoice id, profile id, transaction id, it returns the subscription's id.
-	 *
-	 *
-	 * @static
-	 * @param string $value
-	 * @param string $field Either invoice_id, transaction_id or profile_id.
-	 * @since 1.0.19
-	 * @return int
-	 */
-	public static function get_subscription_id_by_field( $value, $field = 'profile_id' ) {
+    /**
+     * Which data store to load.
+     *
+     * @var string
+     */
+    protected $data_store_name = 'subscription';
+
+    /**
+     * This is the name of this object type.
+     *
+     * @var string
+     */
+    protected $object_type = 'subscription';
+
+    /**
+     * Item Data array. This is the core item data exposed in APIs.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $data = array(
+        'customer_id'       => 0,
+        'frequency'         => 1,
+        'period'            => 'D',
+        'initial_amount'    => null,
+        'recurring_amount'  => null,
+        'bill_times'        => 0,
+        'transaction_id'    => '',
+        'parent_payment_id' => null,
+        'product_id'        => 0,
+        'created'           => '0000-00-00 00:00:00',
+        'expiration'        => '0000-00-00 00:00:00',
+        'trial_period'      => '',
+        'status'            => 'pending',
+        'profile_id'        => '',
+        'gateway'           => '',
+        'customer'          => '',
+    );
+
+    /**
+     * Stores the status transition information.
+     *
+     * @since 1.0.19
+     * @var bool
+     */
+    protected $status_transition = false;
+
+    /**
+     * Get the subscription if ID is passed, otherwise the subscription is new and empty.
+     *
+     * @param  int|string|object|WPInv_Subscription $subscription Subscription id, profile_id, or object to read.
+     * @param  bool $deprecated
+     */
+    function __construct( $subscription = 0, $deprecated = false ) {
+
+        parent::__construct( $subscription );
+
+        if ( ! $deprecated && ! empty( $subscription ) && is_numeric( $subscription ) ) {
+            $this->set_id( $subscription );
+        } elseif ( $subscription instanceof self ) {
+            $this->set_id( $subscription->get_id() );
+        } elseif ( $deprecated && $subscription_id = self::get_subscription_id_by_field( $subscription, 'profile_id' ) ) {
+            $this->set_id( $subscription_id );
+        } elseif ( ! empty( $subscription->id ) ) {
+            $this->set_id( $subscription->id );
+        } else {
+            $this->set_object_read( true );
+        }
+
+        // Load the datastore.
+        $this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
+
+        if ( $this->get_id() > 0 ) {
+            $this->data_store->read( $this );
+        }
+
+    }
+
+    /**
+     * Given an invoice id, profile id, transaction id, it returns the subscription's id.
+     *
+     *
+     * @static
+     * @param string $value
+     * @param string $field Either invoice_id, transaction_id or profile_id.
+     * @since 1.0.19
+     * @return int
+     */
+    public static function get_subscription_id_by_field( $value, $field = 'profile_id' ) {
         global $wpdb;
 
-		// Trim the value.
-		$value = trim( $value );
+        // Trim the value.
+        $value = trim( $value );
 
-		if ( empty( $value ) ) {
-			return 0;
-		}
+        if ( empty( $value ) ) {
+            return 0;
+        }
 
-		if ( 'invoice_id' == $field ) {
-			$field = 'parent_payment_id';
-		}
+        if ( 'invoice_id' == $field ) {
+            $field = 'parent_payment_id';
+        }
 
         // Valid fields.
         $fields = array(
-			'parent_payment_id',
-			'transaction_id',
-			'profile_id'
-		);
-
-		// Ensure a field has been passed.
-		if ( empty( $field ) || ! in_array( $field, $fields ) ) {
-			return 0;
-		}
-
-		// Maybe retrieve from the cache.
-		$subscription_id   = wp_cache_get( $value, "getpaid_subscription_{$field}s_to_subscription_ids" );
-		if ( ! empty( $subscription_id ) ) {
-			return $subscription_id;
-		}
+            'parent_payment_id',
+            'transaction_id',
+            'profile_id'
+        );
+
+        // Ensure a field has been passed.
+        if ( empty( $field ) || ! in_array( $field, $fields ) ) {
+            return 0;
+        }
+
+        // Maybe retrieve from the cache.
+        $subscription_id   = wp_cache_get( $value, "getpaid_subscription_{$field}s_to_subscription_ids" );
+        if ( ! empty( $subscription_id ) ) {
+            return $subscription_id;
+        }
 
         // Fetch from the db.
         $table            = $wpdb->prefix . 'wpinv_subscriptions';
@@ -141,34 +141,34 @@ 
             $wpdb->prepare( "SELECT `id` FROM $table WHERE `$field`=%s LIMIT 1", $value )
         );
 
-		if ( empty( $subscription_id ) ) {
-			return 0;
-		}
+        if ( empty( $subscription_id ) ) {
+            return 0;
+        }
 
-		// Update the cache with our data.
-		wp_cache_set( $value, $subscription_id, "getpaid_subscription_{$field}s_to_subscription_ids" );
+        // Update the cache with our data.
+        wp_cache_set( $value, $subscription_id, "getpaid_subscription_{$field}s_to_subscription_ids" );
 
-		return $subscription_id;
-	}
+        return $subscription_id;
+    }
 
-	/**
+    /**
      * Clears the subscription's cache.
      */
     public function clear_cache() {
-		wp_cache_delete( $this->get_parent_payment_id(), 'getpaid_subscription_parent_payment_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_transaction_id(), 'getpaid_subscription_transaction_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_profile_id(), 'getpaid_subscription_profile_ids_to_subscription_ids' );
-		wp_cache_delete( $this->get_id(), 'getpaid_subscriptions' );
-	}
+        wp_cache_delete( $this->get_parent_payment_id(), 'getpaid_subscription_parent_payment_ids_to_subscription_ids' );
+        wp_cache_delete( $this->get_transaction_id(), 'getpaid_subscription_transaction_ids_to_subscription_ids' );
+        wp_cache_delete( $this->get_profile_id(), 'getpaid_subscription_profile_ids_to_subscription_ids' );
+        wp_cache_delete( $this->get_id(), 'getpaid_subscriptions' );
+    }
 
-	/**
+    /**
      * Checks if a subscription key is set.
      */
     public function _isset( $key ) {
         return isset( $this->data[$key] ) || method_exists( $this, "get_$key" );
-	}
+    }
 
-	/*
+    /*
 	|--------------------------------------------------------------------------
 	| CRUD methods
 	|--------------------------------------------------------------------------
@@ -177,545 +177,545 @@ 
 	|
     */
 
-	/*
-	|--------------------------------------------------------------------------
-	| Getters
-	|--------------------------------------------------------------------------
-	*/
+    /*
+	|--------------------------------------------------------------------------
+	| Getters
+	|--------------------------------------------------------------------------
+	*/
+
+    /**
+     * Get customer id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_customer_id( $context = 'view' ) {
+        return (int) $this->get_prop( 'customer_id', $context );
+    }
+
+    /**
+     * Get customer information.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WP_User|false WP_User object on success, false on failure.
+     */
+    public function get_customer( $context = 'view' ) {
+        return get_userdata( $this->get_customer_id( $context ) );
+    }
+
+    /**
+     * Get parent invoice id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_parent_invoice_id( $context = 'view' ) {
+        return (int) $this->get_prop( 'parent_payment_id', $context );
+    }
+
+    /**
+     * Alias for self::get_parent_invoice_id().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_parent_payment_id( $context = 'view' ) {
+        return $this->get_parent_invoice_id( $context );
+    }
+
+    /**
+     * Alias for self::get_parent_invoice_id().
+     *
+     * @since  1.0.0
+     * @return int
+     */
+    public function get_original_payment_id( $context = 'view' ) {
+        return $this->get_parent_invoice_id( $context );
+    }
+
+    /**
+     * Get parent invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WPInv_Invoice
+     */
+    public function get_parent_invoice( $context = 'view' ) {
+        return new WPInv_Invoice( $this->get_parent_invoice_id( $context ) );
+    }
+
+    /**
+     * Alias for self::get_parent_invoice().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WPInv_Invoice
+     */
+    public function get_parent_payment( $context = 'view' ) {
+        return $this->get_parent_invoice( $context );
+    }
+
+    /**
+     * Get subscription's product id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_product_id( $context = 'view' ) {
+        return (int) $this->get_prop( 'product_id', $context );
+    }
+
+    /**
+     * Get the subscription product.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return WPInv_Item
+     */
+    public function get_product( $context = 'view' ) {
+        return new WPInv_Item( $this->get_product_id( $context ) );
+    }
+
+    /**
+     * Get parent invoice's gateway.
+     *
+     * Here for backwards compatibility.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_gateway( $context = 'view' ) {
+        return $this->get_parent_invoice( $context )->get_gateway();
+    }
+
+    /**
+     * Get the period of a renewal.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_period( $context = 'view' ) {
+        return $this->get_prop( 'period', $context );
+    }
+
+    /**
+     * Get number of periods each renewal is valid for.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_frequency( $context = 'view' ) {
+        return (int) $this->get_prop( 'frequency', $context );
+    }
+
+    /**
+     * Get the initial amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_initial_amount( $context = 'view' ) {
+        return (float) wpinv_sanitize_amount( $this->get_prop( 'initial_amount', $context ) );
+    }
+
+    /**
+     * Get the recurring amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_recurring_amount( $context = 'view' ) {
+        return (float) wpinv_sanitize_amount( $this->get_prop( 'recurring_amount', $context ) );
+    }
+
+    /**
+     * Get number of times that this subscription can be renewed.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_bill_times( $context = 'view' ) {
+        return (int) $this->get_prop( 'bill_times', $context );
+    }
+
+    /**
+     * Get transaction id of this subscription's parent invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_transaction_id( $context = 'view' ) {
+        return $this->get_prop( 'transaction_id', $context );
+    }
+
+    /**
+     * Get the date that the subscription was created.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_created( $context = 'view' ) {
+        return $this->get_prop( 'created', $context );
+    }
+
+    /**
+     * Alias for self::get_created().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_created( $context = 'view' ) {
+        return $this->get_created( $context );
+    }
+
+    /**
+     * Retrieves the creation date in a timestamp
+     *
+     * @since  1.0.0
+     * @return int
+     */
+    public function get_time_created() {
+        $created = $this->get_date_created();
+        return empty( $created ) ? current_time( 'timestamp' ) : strtotime( $created, current_time( 'timestamp' ) );
+    }
+
+    /**
+     * Get GMT date when the subscription was created.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_created_gmt( $context = 'view' ) {
+        $date = $this->get_date_created( $context );
+
+        if ( $date ) {
+            $date = get_gmt_from_date( $date );
+        }
+        return $date;
+    }
+
+    /**
+     * Get the date that the subscription will renew.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_next_renewal_date( $context = 'view' ) {
+        return $this->get_prop( 'expiration', $context );
+    }
+
+    /**
+     * Alias for self::get_next_renewal_date().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_expiration( $context = 'view' ) {
+        return $this->get_next_renewal_date( $context );
+    }
+
+    /**
+     * Retrieves the expiration date in a timestamp
+     *
+     * @since  1.0.0
+     * @return int
+     */
+    public function get_expiration_time() {
+        $expiration = $this->get_expiration();
+
+        if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
+            return current_time( 'timestamp' );
+        }
+
+        $expiration = strtotime( $expiration, current_time( 'timestamp' ) );
+        return $expiration < current_time( 'timestamp' ) ? current_time( 'timestamp' ) : $expiration;
+    }
+
+    /**
+     * Get GMT date when the subscription will renew.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_next_renewal_date_gmt( $context = 'view' ) {
+        $date = $this->get_next_renewal_date( $context );
+
+        if ( $date ) {
+            $date = get_gmt_from_date( $date );
+        }
+        return $date;
+    }
+
+    /**
+     * Get the subscription's trial period.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_trial_period( $context = 'view' ) {
+        return $this->get_prop( 'trial_period', $context );
+    }
+
+    /**
+     * Get the subscription's status.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_status( $context = 'view' ) {
+        return $this->get_prop( 'status', $context );
+    }
+
+    /**
+     * Get the subscription's profile id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_profile_id( $context = 'view' ) {
+        return $this->get_prop( 'profile_id', $context );
+    }
+
+    /*
+	|--------------------------------------------------------------------------
+	| Setters
+	|--------------------------------------------------------------------------
+	*/
+
+    /**
+     * Set customer id.
+     *
+     * @since 1.0.19
+     * @param  int $value The customer's id.
+     */
+    public function set_customer_id( $value ) {
+        $this->set_prop( 'customer_id', (int) $value );
+    }
+
+    /**
+     * Set parent invoice id.
+     *
+     * @since 1.0.19
+     * @param  int $value The parent invoice id.
+     */
+    public function set_parent_invoice_id( $value ) {
+        $this->set_prop( 'parent_payment_id', (int) $value );
+    }
+
+    /**
+     * Alias for self::set_parent_invoice_id().
+     *
+     * @since 1.0.19
+     * @param  int $value The parent invoice id.
+     */
+    public function set_parent_payment_id( $value ) {
+        $this->set_parent_invoice_id( $value );
+    }
+
+    /**
+     * Alias for self::set_parent_invoice_id().
+     *
+     * @since 1.0.19
+     * @param  int $value The parent invoice id.
+     */
+    public function set_original_payment_id( $value ) {
+        $this->set_parent_invoice_id( $value );
+    }
+
+    /**
+     * Set subscription's product id.
+     *
+     * @since 1.0.19
+     * @param  int $value The subscription product id.
+     */
+    public function set_product_id( $value ) {
+        $this->set_prop( 'product_id', (int) $value );
+    }
+
+    /**
+     * Set the period of a renewal.
+     *
+     * @since 1.0.19
+     * @param  string $value The renewal period.
+     */
+    public function set_period( $value ) {
+        $this->set_prop( 'period', $value );
+    }
+
+    /**
+     * Set number of periods each renewal is valid for.
+     *
+     * @since 1.0.19
+     * @param  int $value The subscription frequency.
+     */
+    public function set_frequency( $value ) {
+        $value = empty( $value ) ? 1 : (int) $value;
+        $this->set_prop( 'frequency', absint( $value ) );
+    }
+
+    /**
+     * Set the initial amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  float $value The initial subcription amount.
+     */
+    public function set_initial_amount( $value ) {
+        $this->set_prop( 'initial_amount', wpinv_sanitize_amount( $value ) );
+    }
+
+    /**
+     * Set the recurring amount for the subscription.
+     *
+     * @since 1.0.19
+     * @param  float $value The recurring subcription amount.
+     */
+    public function set_recurring_amount( $value ) {
+        $this->set_prop( 'recurring_amount', wpinv_sanitize_amount( $value ) );
+    }
+
+    /**
+     * Set number of times that this subscription can be renewed.
+     *
+     * @since 1.0.19
+     * @param  int $value Bill times.
+     */
+    public function set_bill_times( $value ) {
+        $this->set_prop( 'bill_times', (int) $value );
+    }
+
+    /**
+     * Get transaction id of this subscription's parent invoice.
+     *
+     * @since 1.0.19
+     * @param string $value Bill times.
+     */
+    public function set_transaction_id( $value ) {
+        $this->set_prop( 'transaction_id', sanitize_text_field( $value ) );
+    }
+
+    /**
+     * Set date when this subscription started.
+     *
+     * @since 1.0.19
+     * @param string $value strtotime compliant date.
+     */
+    public function set_created( $value ) {
+        $date = strtotime( $value );
+
+        if ( $date && $value !== '0000-00-00 00:00:00' ) {
+            $this->set_prop( 'created', date( 'Y-m-d H:i:s', $date ) );
+            return;
+        }
+
+        $this->set_prop( 'created', '' );
 
-	/**
-	 * Get customer id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_customer_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'customer_id', $context );
-	}
-
-	/**
-	 * Get customer information.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WP_User|false WP_User object on success, false on failure.
-	 */
-	public function get_customer( $context = 'view' ) {
-		return get_userdata( $this->get_customer_id( $context ) );
-	}
-
-	/**
-	 * Get parent invoice id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_parent_invoice_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'parent_payment_id', $context );
-	}
-
-	/**
-	 * Alias for self::get_parent_invoice_id().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-    public function get_parent_payment_id( $context = 'view' ) {
-        return $this->get_parent_invoice_id( $context );
-	}
+    }
 
-	/**
-     * Alias for self::get_parent_invoice_id().
+    /**
+     * Alias for self::set_created().
      *
-     * @since  1.0.0
-     * @return int
+     * @since 1.0.19
+     * @param string $value strtotime compliant date.
      */
-    public function get_original_payment_id( $context = 'view' ) {
-        return $this->get_parent_invoice_id( $context );
+    public function set_date_created( $value ) {
+        $this->set_created( $value );
     }
 
-	/**
-	 * Get parent invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WPInv_Invoice
-	 */
-	public function get_parent_invoice( $context = 'view' ) {
-		return new WPInv_Invoice( $this->get_parent_invoice_id( $context ) );
-	}
-
-	/**
-	 * Alias for self::get_parent_invoice().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WPInv_Invoice
-	 */
-    public function get_parent_payment( $context = 'view' ) {
-        return $this->get_parent_invoice( $context );
-	}
-
-	/**
-	 * Get subscription's product id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_product_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'product_id', $context );
-	}
-
-	/**
-	 * Get the subscription product.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return WPInv_Item
-	 */
-	public function get_product( $context = 'view' ) {
-		return new WPInv_Item( $this->get_product_id( $context ) );
-	}
-
-	/**
-	 * Get parent invoice's gateway.
-	 *
-	 * Here for backwards compatibility.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_gateway( $context = 'view' ) {
-		return $this->get_parent_invoice( $context )->get_gateway();
-	}
-
-	/**
-	 * Get the period of a renewal.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_period( $context = 'view' ) {
-		return $this->get_prop( 'period', $context );
-	}
-
-	/**
-	 * Get number of periods each renewal is valid for.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_frequency( $context = 'view' ) {
-		return (int) $this->get_prop( 'frequency', $context );
-	}
-
-	/**
-	 * Get the initial amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_initial_amount( $context = 'view' ) {
-		return (float) wpinv_sanitize_amount( $this->get_prop( 'initial_amount', $context ) );
-	}
-
-	/**
-	 * Get the recurring amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_recurring_amount( $context = 'view' ) {
-		return (float) wpinv_sanitize_amount( $this->get_prop( 'recurring_amount', $context ) );
-	}
-
-	/**
-	 * Get number of times that this subscription can be renewed.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_bill_times( $context = 'view' ) {
-		return (int) $this->get_prop( 'bill_times', $context );
-	}
-
-	/**
-	 * Get transaction id of this subscription's parent invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_transaction_id( $context = 'view' ) {
-		return $this->get_prop( 'transaction_id', $context );
-	}
-
-	/**
-	 * Get the date that the subscription was created.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_created( $context = 'view' ) {
-		return $this->get_prop( 'created', $context );
-	}
-
-	/**
-	 * Alias for self::get_created().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_created( $context = 'view' ) {
-		return $this->get_created( $context );
-	}
-
-	/**
-	 * Retrieves the creation date in a timestamp
-	 *
-	 * @since  1.0.0
-	 * @return int
-	 */
-	public function get_time_created() {
-		$created = $this->get_date_created();
-		return empty( $created ) ? current_time( 'timestamp' ) : strtotime( $created, current_time( 'timestamp' ) );
-	}
-
-	/**
-	 * Get GMT date when the subscription was created.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_created_gmt( $context = 'view' ) {
-        $date = $this->get_date_created( $context );
+    /**
+     * Set the date that the subscription will renew.
+     *
+     * @since 1.0.19
+     * @param string $value strtotime compliant date.
+     */
+    public function set_next_renewal_date( $value ) {
+        $date = strtotime( $value );
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
+        if ( $date && $value !== '0000-00-00 00:00:00' ) {
+            $this->set_prop( 'expiration', date( 'Y-m-d H:i:s', $date ) );
+            return;
         }
-		return $date;
-	}
-
-	/**
-	 * Get the date that the subscription will renew.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_next_renewal_date( $context = 'view' ) {
-		return $this->get_prop( 'expiration', $context );
-	}
-
-	/**
-	 * Alias for self::get_next_renewal_date().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_expiration( $context = 'view' ) {
-		return $this->get_next_renewal_date( $context );
-	}
-
-	/**
-	 * Retrieves the expiration date in a timestamp
-	 *
-	 * @since  1.0.0
-	 * @return int
-	 */
-	public function get_expiration_time() {
-		$expiration = $this->get_expiration();
-
-		if ( empty( $expiration ) || '0000-00-00 00:00:00' == $expiration ) {
-			return current_time( 'timestamp' );
-		}
-
-		$expiration = strtotime( $expiration, current_time( 'timestamp' ) );
-		return $expiration < current_time( 'timestamp' ) ? current_time( 'timestamp' ) : $expiration;
-	}
-
-	/**
-	 * Get GMT date when the subscription will renew.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_next_renewal_date_gmt( $context = 'view' ) {
-        $date = $this->get_next_renewal_date( $context );
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
-        }
-		return $date;
-	}
-
-	/**
-	 * Get the subscription's trial period.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_trial_period( $context = 'view' ) {
-		return $this->get_prop( 'trial_period', $context );
-	}
-
-	/**
-	 * Get the subscription's status.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_status( $context = 'view' ) {
-		return $this->get_prop( 'status', $context );
-	}
-
-	/**
-	 * Get the subscription's profile id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_profile_id( $context = 'view' ) {
-		return $this->get_prop( 'profile_id', $context );
-	}
-
-	/*
-	|--------------------------------------------------------------------------
-	| Setters
-	|--------------------------------------------------------------------------
-	*/
+        $this->set_prop( 'expiration', '' );
 
-	/**
-	 * Set customer id.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The customer's id.
-	 */
-	public function set_customer_id( $value ) {
-		$this->set_prop( 'customer_id', (int) $value );
-	}
-
-	/**
-	 * Set parent invoice id.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The parent invoice id.
-	 */
-	public function set_parent_invoice_id( $value ) {
-		$this->set_prop( 'parent_payment_id', (int) $value );
-	}
-
-	/**
-	 * Alias for self::set_parent_invoice_id().
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The parent invoice id.
-	 */
-    public function set_parent_payment_id( $value ) {
-        $this->set_parent_invoice_id( $value );
-	}
+    }
 
-	/**
-     * Alias for self::set_parent_invoice_id().
+    /**
+     * Alias for self::set_next_renewal_date().
      *
      * @since 1.0.19
-	 * @param  int $value The parent invoice id.
+     * @param string $value strtotime compliant date.
      */
-    public function set_original_payment_id( $value ) {
-        $this->set_parent_invoice_id( $value );
-	}
-
-	/**
-	 * Set subscription's product id.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The subscription product id.
-	 */
-	public function set_product_id( $value ) {
-		$this->set_prop( 'product_id', (int) $value );
-	}
-
-	/**
-	 * Set the period of a renewal.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value The renewal period.
-	 */
-	public function set_period( $value ) {
-		$this->set_prop( 'period', $value );
-	}
-
-	/**
-	 * Set number of periods each renewal is valid for.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value The subscription frequency.
-	 */
-	public function set_frequency( $value ) {
-		$value = empty( $value ) ? 1 : (int) $value;
-		$this->set_prop( 'frequency', absint( $value ) );
-	}
-
-	/**
-	 * Set the initial amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value The initial subcription amount.
-	 */
-	public function set_initial_amount( $value ) {
-		$this->set_prop( 'initial_amount', wpinv_sanitize_amount( $value ) );
-	}
-
-	/**
-	 * Set the recurring amount for the subscription.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value The recurring subcription amount.
-	 */
-	public function set_recurring_amount( $value ) {
-		$this->set_prop( 'recurring_amount', wpinv_sanitize_amount( $value ) );
-	}
-
-	/**
-	 * Set number of times that this subscription can be renewed.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value Bill times.
-	 */
-	public function set_bill_times( $value ) {
-		$this->set_prop( 'bill_times', (int) $value );
-	}
-
-	/**
-	 * Get transaction id of this subscription's parent invoice.
-	 *
-	 * @since 1.0.19
-	 * @param string $value Bill times.
-	 */
-	public function set_transaction_id( $value ) {
-		$this->set_prop( 'transaction_id', sanitize_text_field( $value ) );
-	}
-
-	/**
-	 * Set date when this subscription started.
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_created( $value ) {
-        $date = strtotime( $value );
+    public function set_expiration( $value ) {
+        $this->set_next_renewal_date( $value );
+    }
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'created', date( 'Y-m-d H:i:s', $date ) );
+    /**
+     * Set the subscription's trial period.
+     *
+     * @since 1.0.19
+     * @param string $value trial period e.g 1 year.
+     */
+    public function set_trial_period( $value ) {
+        $this->set_prop( 'trial_period', $value );
+    }
+
+    /**
+     * Set the subscription's status.
+     *
+     * @since 1.0.19
+     * @param string $new_status    New subscription status.
+     */
+    public function set_status( $new_status ) {
+
+        // Abort if this is not a valid status;
+        if ( ! array_key_exists( $new_status, getpaid_get_subscription_statuses() ) ) {
             return;
         }
 
-		$this->set_prop( 'created', '' );
+        $old_status = $this->get_status();
+        $this->set_prop( 'status', $new_status );
 
-	}
+        if ( true === $this->object_read && $old_status !== $new_status ) {
+            $this->status_transition = array(
+                'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
+                'to'     => $new_status,
+            );
+        }
 
-	/**
-	 * Alias for self::set_created().
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_date_created( $value ) {
-		$this->set_created( $value );
     }
 
-	/**
-	 * Set the date that the subscription will renew.
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_next_renewal_date( $value ) {
-		$date = strtotime( $value );
+    /**
+     * Set the subscription's (remote) profile id.
+     *
+     * @since 1.0.19
+     * @param  string $value the remote profile id.
+     */
+    public function set_profile_id( $value ) {
+        $this->set_prop( 'profile_id', sanitize_text_field( $value ) );
+    }
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'expiration', date( 'Y-m-d H:i:s', $date ) );
-            return;
-		}
-
-		$this->set_prop( 'expiration', '' );
-
-	}
-
-	/**
-	 * Alias for self::set_next_renewal_date().
-	 *
-	 * @since 1.0.19
-	 * @param string $value strtotime compliant date.
-	 */
-	public function set_expiration( $value ) {
-		$this->set_next_renewal_date( $value );
-    }
-
-	/**
-	 * Set the subscription's trial period.
-	 *
-	 * @since 1.0.19
-	 * @param string $value trial period e.g 1 year.
-	 */
-	public function set_trial_period( $value ) {
-		$this->set_prop( 'trial_period', $value );
-	}
-
-	/**
-	 * Set the subscription's status.
-	 *
-	 * @since 1.0.19
-	 * @param string $new_status    New subscription status.
-	 */
-	public function set_status( $new_status ) {
-
-		// Abort if this is not a valid status;
-		if ( ! array_key_exists( $new_status, getpaid_get_subscription_statuses() ) ) {
-			return;
-		}
-
-		$old_status = $this->get_status();
-		$this->set_prop( 'status', $new_status );
-
-		if ( true === $this->object_read && $old_status !== $new_status ) {
-			$this->status_transition = array(
-				'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
-				'to'     => $new_status,
-			);
-		}
-
-	}
-
-	/**
-	 * Set the subscription's (remote) profile id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value the remote profile id.
-	 */
-	public function set_profile_id( $value ) {
-		$this->set_prop( 'profile_id', sanitize_text_field( $value ) );
-	}
-
-	/*
+    /*
 	|--------------------------------------------------------------------------
 	| Boolean methods
 	|--------------------------------------------------------------------------
@@ -724,55 +724,55 @@ 
 	|
 	*/
 
-	/**
+    /**
      * Checks if the subscription has a given status.
-	 *
-	 * @param string|array String or array of strings to check for.
-	 * @return bool
+     *
+     * @param string|array String or array of strings to check for.
+     * @return bool
      */
     public function has_status( $status ) {
         return in_array( $this->get_status(), wpinv_clean( wpinv_parse_list( $status ) ) );
-	}
+    }
 
-	/**
+    /**
      * Checks if the subscription has a trial period.
-	 *
-	 * @return bool
+     *
+     * @return bool
      */
     public function has_trial_period() {
-		$period = $this->get_trial_period();
+        $period = $this->get_trial_period();
         return ! empty( $period );
-	}
-
-	/**
-	 * Is the subscription active?
-	 *
-	 * @return bool
-	 */
-	public function is_active() {
-		return $this->has_status( 'active trialling' ) && ! $this->is_expired();
-	}
-
-	/**
-	 * Is the subscription expired?
-	 *
-	 * @return bool
-	 */
-	public function is_expired() {
-		return $this->has_status( 'expired' ) || ( $this->has_status( 'active cancelled trialling' ) && $this->get_expiration_time() < current_time( 'mysql' ) );
-	}
-
-	/**
-	 * Is this the last renewals?
-	 *
-	 * @return bool
-	 */
-	public function is_last_renewal() {
-		$max_bills = $this->get_bill_times();
-		return ! empty( $max_bills ) && $max_bills <= $this->get_times_billed();
-	}
-
-	/*
+    }
+
+    /**
+     * Is the subscription active?
+     *
+     * @return bool
+     */
+    public function is_active() {
+        return $this->has_status( 'active trialling' ) && ! $this->is_expired();
+    }
+
+    /**
+     * Is the subscription expired?
+     *
+     * @return bool
+     */
+    public function is_expired() {
+        return $this->has_status( 'expired' ) || ( $this->has_status( 'active cancelled trialling' ) && $this->get_expiration_time() < current_time( 'mysql' ) );
+    }
+
+    /**
+     * Is this the last renewals?
+     *
+     * @return bool
+     */
+    public function is_last_renewal() {
+        $max_bills = $this->get_bill_times();
+        return ! empty( $max_bills ) && $max_bills <= $this->get_times_billed();
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Additional methods
 	|--------------------------------------------------------------------------
@@ -781,27 +781,27 @@ 
 	|
 	*/
 
-	/**
-	 * Backwards compatibilty.
-	 */
-	public function create( $data = array() ) {
+    /**
+     * Backwards compatibilty.
+     */
+    public function create( $data = array() ) {
 
-		// Set the properties.
-		if ( is_array( $data ) ) {
-			$this->set_props( $data );
-		}
+        // Set the properties.
+        if ( is_array( $data ) ) {
+            $this->set_props( $data );
+        }
 
-		// Save the item.
-		return $this->save();
+        // Save the item.
+        return $this->save();
 
-	}
+    }
 
-	/**
-	 * Backwards compatibilty.
-	 */
-	public function update( $args = array() ) {
-		return $this->create( $args );
-	}
+    /**
+     * Backwards compatibilty.
+     */
+    public function update( $args = array() ) {
+        return $this->create( $args );
+    }
 
     /**
      * Retrieve renewal payments for a subscription
@@ -811,22 +811,22 @@ 
      */
     public function get_child_payments( $hide_pending = true ) {
 
-		$statuses = array( 'publish', 'wpi-processing', 'wpi-renewal' );
+        $statuses = array( 'publish', 'wpi-processing', 'wpi-renewal' );
 
-		if ( ! $hide_pending ) {
-			$statuses = array_keys( wpinv_get_invoice_statuses() );
-		}
+        if ( ! $hide_pending ) {
+            $statuses = array_keys( wpinv_get_invoice_statuses() );
+        }
 
         return get_posts(
-			array(
-            	'post_parent'    => $this->get_parent_payment_id(),
-            	'numberposts'    => -1,
-            	'post_status'    => $statuses,
-            	'orderby'        => 'ID',
-            	'order'          => 'ASC',
-            	'post_type'      => 'wpi_invoice'
-			)
-		);
+            array(
+                'post_parent'    => $this->get_parent_payment_id(),
+                'numberposts'    => -1,
+                'post_status'    => $statuses,
+                'orderby'        => 'ID',
+                'order'          => 'ASC',
+                'post_type'      => 'wpi_invoice'
+            )
+        );
     }
 
     /**
@@ -836,7 +836,7 @@ 
      * @return int
      */
     public function get_total_payments() {
-		return getpaid_count_subscription_invoices( $this->get_parent_invoice_id(), $this->get_id() );
+        return getpaid_count_subscription_invoices( $this->get_parent_invoice_id(), $this->get_id() );
     }
 
     /**
@@ -860,57 +860,57 @@ 
      *
      * @since  2.4
      * @param  array $args Array of values for the payment, including amount and transaction ID
-	 * @param  WPInv_Invoice $invoice If adding an existing invoice.
+     * @param  WPInv_Invoice $invoice If adding an existing invoice.
      * @return bool
      */
     public function add_payment( $args = array(), $invoice = false ) {
 
-		// Process each payment once.
+        // Process each payment once.
         if ( ! empty( $args['transaction_id'] ) && $this->payment_exists( $args['transaction_id'] ) ) {
             return false;
         }
 
-		// Are we creating a new invoice?
-		if ( empty( $invoice ) ) {
-			$invoice = $this->create_payment();
+        // Are we creating a new invoice?
+        if ( empty( $invoice ) ) {
+            $invoice = $this->create_payment();
 
-			if ( empty( $invoice ) ) {
-				return false;
-			}
+            if ( empty( $invoice ) ) {
+                return false;
+            }
 
-		}
+        }
 
-		$invoice->set_status( 'wpi-renewal' );
+        $invoice->set_status( 'wpi-renewal' );
 
-		// Maybe set a transaction id.
-		if ( ! empty( $args['transaction_id'] ) ) {
-			$invoice->set_transaction_id( $args['transaction_id'] );
-		}
+        // Maybe set a transaction id.
+        if ( ! empty( $args['transaction_id'] ) ) {
+            $invoice->set_transaction_id( $args['transaction_id'] );
+        }
 
-		// Set the completed date.
-		$invoice->set_completed_date( current_time( 'mysql' ) );
+        // Set the completed date.
+        $invoice->set_completed_date( current_time( 'mysql' ) );
 
-		// And the gateway.
-		if ( ! empty( $args['gateway'] ) ) {
-			$invoice->set_gateway( $args['gateway'] );
-		}
+        // And the gateway.
+        if ( ! empty( $args['gateway'] ) ) {
+            $invoice->set_gateway( $args['gateway'] );
+        }
 
-		$invoice->save();
+        $invoice->save();
 
-		if ( ! $invoice->exists() ) {
-			return false;
-		}
+        if ( ! $invoice->exists() ) {
+            return false;
+        }
 
-		do_action( 'getpaid_after_create_subscription_renewal_invoice', $invoice, $this );
-		do_action( 'wpinv_recurring_add_subscription_payment', $invoice, $this );
+        do_action( 'getpaid_after_create_subscription_renewal_invoice', $invoice, $this );
+        do_action( 'wpinv_recurring_add_subscription_payment', $invoice, $this );
         do_action( 'wpinv_recurring_record_payment', $invoice->get_id(), $this->get_parent_invoice_id(), $invoice->get_recurring_total(), $invoice->get_transaction_id() );
 
         update_post_meta( $invoice->get_id(), '_wpinv_subscription_id', $this->id );
 
         return $invoice->get_id();
-	}
+    }
 
-	/**
+    /**
      * Creates a new invoice and returns it.
      *
      * @since  1.0.19
@@ -918,124 +918,124 @@ 
      */
     public function create_payment() {
 
-		$parent_invoice = $this->get_parent_payment();
-
-		if ( ! $parent_invoice->exists() ) {
-			return false;
-		}
-
-		// Duplicate the parent invoice.
-		$invoice = getpaid_duplicate_invoice( $parent_invoice );
-		$invoice->set_parent_id( $parent_invoice->get_id() );
-		$invoice->set_subscription_id( $this->get_id() );
-		$invoice->set_remote_subscription_id( $this->get_profile_id() );
-
-		// Set invoice items.
-		$subscription_group = getpaid_get_invoice_subscription_group( $parent_invoice->get_id(), $this->get_id() );
-		$allowed_items      = empty( $subscription_group ) ? array( $this->get_product_id() ) : array_keys( $subscription_group['items'] );
-		$invoice_items      = array();
-
-		foreach ( $invoice->get_items() as $item ) {
-			if ( in_array( $item->get_id(), $allowed_items ) ) {
-				$invoice_items[] = $item;
-			}
-		}
-
-		$invoice->set_items( $invoice_items );
-
-		if ( ! empty( $subscription_group['fees'] ) ) {
-			$invoice->set_fees( $subscription_group['fees'] );
-		}
-
-		// Maybe recalculate discount (Pre-GetPaid Fix).
-		$discount = new WPInv_Discount( $invoice->get_discount_code() );
-		if ( $discount->exists() && $discount->is_recurring() && 0 == $invoice->get_total_discount() ) {
-			$invoice->add_discount( getpaid_calculate_invoice_discount( $invoice, $discount ) );
-		}
-
-		$invoice->recalculate_total();
-		$invoice->set_status( 'wpi-pending' );
-		$invoice->save();
-
-		return $invoice->exists() ? $invoice : false;
-    }
-
-	/**
-	 * Renews or completes a subscription
-	 *
-	 * @since  1.0.0
-	 * @return int The subscription's id
-	 */
-	public function renew() {
-
-		// Complete subscription if applicable
-		if ( $this->is_last_renewal() ) {
-			return $this->complete();
-		}
-
-		// Calculate new expiration
-		$frequency      = $this->get_frequency();
-		$period         = $this->get_period();
-		$new_expiration = strtotime( "+ $frequency $period", $this->get_expiration_time() );
-
-		$this->set_expiration( date( 'Y-m-d H:i:s',$new_expiration ) );
-		$this->set_status( 'active' );
-		$this->save();
-
-		do_action( 'getpaid_subscription_renewed', $this );
-
-		return $this->get_id();
-	}
-
-	/**
-	 * Marks a subscription as completed
-	 *
-	 * Subscription is completed when the number of payments matches the billing_times field
-	 *
-	 * @since  1.0.0
-	 * @return int|bool Subscription id or false if the subscription is cancelled.
-	 */
-	public function complete() {
-
-		// Only mark a subscription as complete if it's not already cancelled.
-		if ( $this->has_status( 'cancelled' ) ) {
-			return false;
-		}
-
-		$this->set_status( 'completed' );
-		return $this->save();
-
-	}
-
-	/**
-	 * Marks a subscription as expired
-	 *
-	 * @since  1.0.0
-	 * @param  bool $check_expiration
-	 * @return int|bool Subscription id or false if $check_expiration is true and expiration date is in the future.
-	 */
-	public function expire( $check_expiration = false ) {
-
-		if ( $check_expiration && $this->get_expiration_time() > current_time( 'timestamp' ) ) {
-			// Do not mark as expired since real expiration date is in the future
-			return false;
-		}
-
-		$this->set_status( 'expired' );
-		return $this->save();
-
-	}
-
-	/**
-	 * Marks a subscription as failing
-	 *
-	 * @since  2.4.2
-	 * @return int Subscription id.
-	 */
-	public function failing() {
-		$this->set_status( 'failing' );
-		return $this->save();
-	}
+        $parent_invoice = $this->get_parent_payment();
+
+        if ( ! $parent_invoice->exists() ) {
+            return false;
+        }
+
+        // Duplicate the parent invoice.
+        $invoice = getpaid_duplicate_invoice( $parent_invoice );
+        $invoice->set_parent_id( $parent_invoice->get_id() );
+        $invoice->set_subscription_id( $this->get_id() );
+        $invoice->set_remote_subscription_id( $this->get_profile_id() );
+
+        // Set invoice items.
+        $subscription_group = getpaid_get_invoice_subscription_group( $parent_invoice->get_id(), $this->get_id() );
+        $allowed_items      = empty( $subscription_group ) ? array( $this->get_product_id() ) : array_keys( $subscription_group['items'] );
+        $invoice_items      = array();
+
+        foreach ( $invoice->get_items() as $item ) {
+            if ( in_array( $item->get_id(), $allowed_items ) ) {
+                $invoice_items[] = $item;
+            }
+        }
+
+        $invoice->set_items( $invoice_items );
+
+        if ( ! empty( $subscription_group['fees'] ) ) {
+            $invoice->set_fees( $subscription_group['fees'] );
+        }
+
+        // Maybe recalculate discount (Pre-GetPaid Fix).
+        $discount = new WPInv_Discount( $invoice->get_discount_code() );
+        if ( $discount->exists() && $discount->is_recurring() && 0 == $invoice->get_total_discount() ) {
+            $invoice->add_discount( getpaid_calculate_invoice_discount( $invoice, $discount ) );
+        }
+
+        $invoice->recalculate_total();
+        $invoice->set_status( 'wpi-pending' );
+        $invoice->save();
+
+        return $invoice->exists() ? $invoice : false;
+    }
+
+    /**
+     * Renews or completes a subscription
+     *
+     * @since  1.0.0
+     * @return int The subscription's id
+     */
+    public function renew() {
+
+        // Complete subscription if applicable
+        if ( $this->is_last_renewal() ) {
+            return $this->complete();
+        }
+
+        // Calculate new expiration
+        $frequency      = $this->get_frequency();
+        $period         = $this->get_period();
+        $new_expiration = strtotime( "+ $frequency $period", $this->get_expiration_time() );
+
+        $this->set_expiration( date( 'Y-m-d H:i:s',$new_expiration ) );
+        $this->set_status( 'active' );
+        $this->save();
+
+        do_action( 'getpaid_subscription_renewed', $this );
+
+        return $this->get_id();
+    }
+
+    /**
+     * Marks a subscription as completed
+     *
+     * Subscription is completed when the number of payments matches the billing_times field
+     *
+     * @since  1.0.0
+     * @return int|bool Subscription id or false if the subscription is cancelled.
+     */
+    public function complete() {
+
+        // Only mark a subscription as complete if it's not already cancelled.
+        if ( $this->has_status( 'cancelled' ) ) {
+            return false;
+        }
+
+        $this->set_status( 'completed' );
+        return $this->save();
+
+    }
+
+    /**
+     * Marks a subscription as expired
+     *
+     * @since  1.0.0
+     * @param  bool $check_expiration
+     * @return int|bool Subscription id or false if $check_expiration is true and expiration date is in the future.
+     */
+    public function expire( $check_expiration = false ) {
+
+        if ( $check_expiration && $this->get_expiration_time() > current_time( 'timestamp' ) ) {
+            // Do not mark as expired since real expiration date is in the future
+            return false;
+        }
+
+        $this->set_status( 'expired' );
+        return $this->save();
+
+    }
+
+    /**
+     * Marks a subscription as failing
+     *
+     * @since  2.4.2
+     * @return int Subscription id.
+     */
+    public function failing() {
+        $this->set_status( 'failing' );
+        return $this->save();
+    }
 
     /**
      * Marks a subscription as cancelled
@@ -1044,19 +1044,19 @@ 
      * @return int Subscription id.
      */
     public function cancel() {
-		$this->set_status( 'cancelled' );
-		return $this->save();
+        $this->set_status( 'cancelled' );
+        return $this->save();
     }
 
-	/**
-	 * Determines if a subscription can be cancelled both locally and with a payment processor.
-	 *
-	 * @since  1.0.0
-	 * @return bool
-	 */
-	public function can_cancel() {
-		return apply_filters( 'wpinv_subscription_can_cancel', $this->has_status( $this->get_cancellable_statuses() ), $this );
-	}
+    /**
+     * Determines if a subscription can be cancelled both locally and with a payment processor.
+     *
+     * @since  1.0.0
+     * @return bool
+     */
+    public function can_cancel() {
+        return apply_filters( 'wpinv_subscription_can_cancel', $this->has_status( $this->get_cancellable_statuses() ), $this );
+    }
 
     /**
      * Returns an array of subscription statuses that can be cancelled
@@ -1069,96 +1069,96 @@ 
         return apply_filters( 'wpinv_recurring_cancellable_statuses', array( 'active', 'trialling', 'failing' ) );
     }
 
-	/**
-	 * Retrieves the URL to cancel subscription
-	 *
-	 * @since  1.0.0
-	 * @return string
-	 */
-	public function get_cancel_url() {
-		$url = getpaid_get_authenticated_action_url( 'subscription_cancel', $this->get_view_url() );
-		return apply_filters( 'wpinv_subscription_cancel_url', $url, $this );
-	}
-
-	/**
-	 * Retrieves the URL to view a subscription
-	 *
-	 * @since  1.0.19
-	 * @return string
-	 */
-	public function get_view_url() {
-
-		$url = getpaid_get_tab_url( 'gp-subscriptions', get_permalink( (int) wpinv_get_option( 'invoice_subscription_page' ) ) );
-		$url = add_query_arg( 'subscription', $this->get_id(), $url );
-
-		return apply_filters( 'getpaid_get_subscription_view_url', $url, $this );
-	}
-
-	/**
-	 * Determines if subscription can be manually renewed
-	 *
-	 * This method is filtered by payment gateways in order to return true on subscriptions
-	 * that can be renewed manually
-	 *
-	 * @since  2.5
-	 * @return bool
-	 */
-	public function can_renew() {
-		return apply_filters( 'wpinv_subscription_can_renew', true, $this );
-	}
-
-	/**
-	 * Retrieves the URL to renew a subscription
-	 *
-	 * @since  2.5
-	 * @return string
-	 */
-	public function get_renew_url() {
-		$url = wp_nonce_url( add_query_arg( array( 'getpaid-action' => 'renew_subscription', 'sub_id' => $this->get_id ) ), 'getpaid-nonce' );
-		return apply_filters( 'wpinv_subscription_renew_url', $url, $this );
-	}
-
-	/**
-	 * Determines if subscription can have their payment method updated
-	 *
-	 * @since  1.0.0
-	 * @return bool
-	 */
-	public function can_update() {
-		return apply_filters( 'wpinv_subscription_can_update', false, $this );
-	}
-
-	/**
-	 * Retrieves the URL to update subscription
-	 *
-	 * @since  1.0.0
-	 * @return string
-	 */
-	public function get_update_url() {
-		$url = add_query_arg( array( 'action' => 'update', 'subscription_id' => $this->get_id() ) );
-		return apply_filters( 'wpinv_subscription_update_url', $url, $this );
-	}
-
-	/**
-	 * Retrieves the subscription status label
-	 *
-	 * @since  1.0.0
-	 * @return string
-	 */
-	public function get_status_label() {
-		return getpaid_get_subscription_status_label( $this->get_status() );
-	}
-
-	/**
-	 * Retrieves the subscription status class
-	 *
-	 * @since  1.0.19
-	 * @return string
-	 */
-	public function get_status_class() {
-		$statuses = getpaid_get_subscription_status_classes();
-		return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'badge-dark';
-	}
+    /**
+     * Retrieves the URL to cancel subscription
+     *
+     * @since  1.0.0
+     * @return string
+     */
+    public function get_cancel_url() {
+        $url = getpaid_get_authenticated_action_url( 'subscription_cancel', $this->get_view_url() );
+        return apply_filters( 'wpinv_subscription_cancel_url', $url, $this );
+    }
+
+    /**
+     * Retrieves the URL to view a subscription
+     *
+     * @since  1.0.19
+     * @return string
+     */
+    public function get_view_url() {
+
+        $url = getpaid_get_tab_url( 'gp-subscriptions', get_permalink( (int) wpinv_get_option( 'invoice_subscription_page' ) ) );
+        $url = add_query_arg( 'subscription', $this->get_id(), $url );
+
+        return apply_filters( 'getpaid_get_subscription_view_url', $url, $this );
+    }
+
+    /**
+     * Determines if subscription can be manually renewed
+     *
+     * This method is filtered by payment gateways in order to return true on subscriptions
+     * that can be renewed manually
+     *
+     * @since  2.5
+     * @return bool
+     */
+    public function can_renew() {
+        return apply_filters( 'wpinv_subscription_can_renew', true, $this );
+    }
+
+    /**
+     * Retrieves the URL to renew a subscription
+     *
+     * @since  2.5
+     * @return string
+     */
+    public function get_renew_url() {
+        $url = wp_nonce_url( add_query_arg( array( 'getpaid-action' => 'renew_subscription', 'sub_id' => $this->get_id ) ), 'getpaid-nonce' );
+        return apply_filters( 'wpinv_subscription_renew_url', $url, $this );
+    }
+
+    /**
+     * Determines if subscription can have their payment method updated
+     *
+     * @since  1.0.0
+     * @return bool
+     */
+    public function can_update() {
+        return apply_filters( 'wpinv_subscription_can_update', false, $this );
+    }
+
+    /**
+     * Retrieves the URL to update subscription
+     *
+     * @since  1.0.0
+     * @return string
+     */
+    public function get_update_url() {
+        $url = add_query_arg( array( 'action' => 'update', 'subscription_id' => $this->get_id() ) );
+        return apply_filters( 'wpinv_subscription_update_url', $url, $this );
+    }
+
+    /**
+     * Retrieves the subscription status label
+     *
+     * @since  1.0.0
+     * @return string
+     */
+    public function get_status_label() {
+        return getpaid_get_subscription_status_label( $this->get_status() );
+    }
+
+    /**
+     * Retrieves the subscription status class
+     *
+     * @since  1.0.19
+     * @return string
+     */
+    public function get_status_class() {
+        $statuses = getpaid_get_subscription_status_classes();
+        return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'badge-dark';
+    }
 
     /**
      * Retrieves the subscription status label
@@ -1168,11 +1168,11 @@ 
      */
     public function get_status_label_html() {
 
-		$status_label = sanitize_text_field( $this->get_status_label() );
-		$class        = esc_attr( $this->get_status_class() );
-		$status       = sanitize_html_class( $this->get_status() );
+        $status_label = sanitize_text_field( $this->get_status_label() );
+        $class        = esc_attr( $this->get_status_class() );
+        $status       = sanitize_html_class( $this->get_status() );
 
-		return "<span class='bsui'><span class='badge $class $status'>$status_label</span></span>";
+        return "<span class='bsui'><span class='badge $class $status'>$status_label</span></span>";
     }
 
     /**
@@ -1183,75 +1183,75 @@ 
      * @return bool
      */
     public function payment_exists( $txn_id = '' ) {
-		$invoice_id = WPInv_Invoice::get_invoice_id_by_field( $txn_id, 'transaction_id' );
+        $invoice_id = WPInv_Invoice::get_invoice_id_by_field( $txn_id, 'transaction_id' );
         return ! empty( $invoice_id );
-	}
-
-	/**
-	 * Handle the status transition.
-	 */
-	protected function status_transition() {
-		$status_transition = $this->status_transition;
-
-		// Reset status transition variable.
-		$this->status_transition = false;
-
-		if ( $status_transition ) {
-			try {
-
-				// Fire a hook for the status change.
-				do_action( 'wpinv_subscription_' . $status_transition['to'], $this->get_id(), $this, $status_transition );
-				do_action( 'getpaid_subscription_' . $status_transition['to'], $this, $status_transition );
-
-				if ( ! empty( $status_transition['from'] ) ) {
-
-					/* translators: 1: old subscription status 2: new subscription status */
-					$transition_note = sprintf( __( 'Subscription status changed from %1$s to %2$s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['from'] ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
-
-					// Note the transition occurred.
-					$this->get_parent_payment()->add_note( $transition_note, false, false, true );
-
-					// Fire another hook.
-					do_action( 'getpaid_subscription_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $this );
-					do_action( 'getpaid_subscription_status_changed', $this, $status_transition['from'], $status_transition['to'] );
-
-				} else {
-					/* translators: %s: new invoice status */
-					$transition_note = sprintf( __( 'Subscription status set to %s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
-
-					// Note the transition occurred.
-					$this->get_parent_payment()->add_note( $transition_note, false, false, true );
-
-				}
-			} catch ( Exception $e ) {
-				$this->get_parent_payment()->add_note( __( 'Error during subscription status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
-			}
-		}
-
-	}
-
-	/**
-	 * Save data to the database.
-	 *
-	 * @since 1.0.19
-	 * @return int subscription ID
-	 */
-	public function save() {
-		parent::save();
-		$this->status_transition();
-		return $this->get_id();
-	}
-
-	/**
-	 * Activates a subscription.
-	 *
-	 * @since 1.0.19
-	 * @return int subscription ID
-	 */
-	public function activate() {
-		$status = 'trialling' == $this->get_status() ? 'trialling' : 'active';
-		$this->set_status( $status );
-		return $this->save();
-	}
+    }
+
+    /**
+     * Handle the status transition.
+     */
+    protected function status_transition() {
+        $status_transition = $this->status_transition;
+
+        // Reset status transition variable.
+        $this->status_transition = false;
+
+        if ( $status_transition ) {
+            try {
+
+                // Fire a hook for the status change.
+                do_action( 'wpinv_subscription_' . $status_transition['to'], $this->get_id(), $this, $status_transition );
+                do_action( 'getpaid_subscription_' . $status_transition['to'], $this, $status_transition );
+
+                if ( ! empty( $status_transition['from'] ) ) {
+
+                    /* translators: 1: old subscription status 2: new subscription status */
+                    $transition_note = sprintf( __( 'Subscription status changed from %1$s to %2$s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['from'] ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
+
+                    // Note the transition occurred.
+                    $this->get_parent_payment()->add_note( $transition_note, false, false, true );
+
+                    // Fire another hook.
+                    do_action( 'getpaid_subscription_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $this );
+                    do_action( 'getpaid_subscription_status_changed', $this, $status_transition['from'], $status_transition['to'] );
+
+                } else {
+                    /* translators: %s: new invoice status */
+                    $transition_note = sprintf( __( 'Subscription status set to %s.', 'invoicing' ), getpaid_get_subscription_status_label( $status_transition['to'] ) );
+
+                    // Note the transition occurred.
+                    $this->get_parent_payment()->add_note( $transition_note, false, false, true );
+
+                }
+            } catch ( Exception $e ) {
+                $this->get_parent_payment()->add_note( __( 'Error during subscription status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
+            }
+        }
+
+    }
+
+    /**
+     * Save data to the database.
+     *
+     * @since 1.0.19
+     * @return int subscription ID
+     */
+    public function save() {
+        parent::save();
+        $this->status_transition();
+        return $this->get_id();
+    }
+
+    /**
+     * Activates a subscription.
+     *
+     * @since 1.0.19
+     * @return int subscription ID
+     */
+    public function activate() {
+        $status = 'trialling' == $this->get_status() ? 'trialling' : 'active';
+        $this->set_status( $status );
+        return $this->save();
+    }
 
 }