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<?php |
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/** |
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* Contains the tax functions. |
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* |
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*/ |
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defined( 'ABSPATH' ) || exit; |
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/** |
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* Returns an array of eu states. |
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* |
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* @return array |
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*/ |
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function getpaid_get_eu_states() { |
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return wpinv_get_data( 'eu-states' ); |
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} |
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/** |
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* Checks if a given country is an EU state. |
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* |
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* @return bool |
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*/ |
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function getpaid_is_eu_state( $country ) { |
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return ! empty( $country ) && in_array( strtoupper( $country ), getpaid_get_eu_states(), true ) ? true : false; |
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} |
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/** |
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* Returns an array of gst states. |
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* |
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* @return array |
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*/ |
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function getpaid_get_gst_states() { |
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return array( 'AU', 'NZ', 'CA', 'CN' ); |
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} |
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/** |
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* Checks if a given country is GST country. |
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* |
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* @return bool |
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*/ |
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function getpaid_is_gst_country( $country ) { |
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return ! empty( $country ) && in_array( strtoupper( $country ), getpaid_get_gst_states(), true ) ? true : false; |
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} |
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/** |
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* Checks whether or not taxes are enabled. |
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* |
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* @return bool |
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*/ |
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function wpinv_use_taxes() { |
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$ret = wpinv_get_option( 'enable_taxes', false ); |
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return (bool) apply_filters( 'wpinv_use_taxes', ! empty( $ret ) ); |
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} |
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/** |
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* Checks whether or not an invoice is taxable. |
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* |
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* @param WPInv_Invoice $invoice |
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* @return bool |
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*/ |
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function wpinv_is_invoice_taxable( $invoice ) { |
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return $invoice->is_taxable(); |
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} |
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/** |
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* Checks whether or not a given country is taxable. |
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* |
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* @param string $country |
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* @return bool |
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*/ |
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function wpinv_is_country_taxable( $country ) { |
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$is_eu = getpaid_is_eu_state( $country ); |
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$is_exempt = ! $is_eu && wpinv_is_base_country( $country ) && wpinv_same_country_exempt_vat(); |
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return (bool) apply_filters( 'wpinv_is_country_taxable', ! $is_exempt, $country ); |
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} |
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/** |
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* Checks whether or not an item is taxable. |
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* |
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* @param WPInv_Item|GetPaid_Form_Item $item |
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* @return bool |
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*/ |
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function wpinv_is_item_taxable( $item ) { |
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return '_exempt' !== $item->get_vat_rule(); |
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} |
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/** |
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* Checks whether or not taxes are calculated based on the store address. |
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* |
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* @return bool |
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*/ |
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function wpinv_use_store_address_as_tax_base( $tax_rule = false ) { |
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$use_base = wpinv_get_option( 'tax_base', 'billing' ) === 'base'; |
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if ( $tax_rule ) { |
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$rules = getpaid_get_tax_rules( 'tax_base' ); |
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$use_base = isset( $rules[ $tax_rule ] ) ? 'base' === $rules[ $tax_rule ] : $use_base; |
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} |
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return (bool) apply_filters( 'wpinv_use_store_address_as_tax_base', $use_base, $tax_rule ); |
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} |
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/** |
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* Retrieves the same country rule. |
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* |
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* @return bool |
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*/ |
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function wpinv_get_vat_same_country_rule( $tax_rule = false ) { |
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$rule = wpinv_get_option( 'vat_same_country_rule', 'vat_too' ); |
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if ( $tax_rule ) { |
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$rules = getpaid_get_tax_rules( 'same_country_rule' ); |
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$rule = isset( $rules[ $tax_rule ] ) ? $rules[ $tax_rule ] : $rule; |
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} |
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return (bool) apply_filters( 'wpinv_get_vat_same_country_rule', $rule, $tax_rule ); |
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} |
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/** |
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* Checks whether or not prices include tax. |
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* |
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* @return bool |
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*/ |
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function wpinv_prices_include_tax() { |
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$is_inclusive = wpinv_get_option( 'prices_include_tax', 'no' ) === 'yes'; |
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return (bool) apply_filters( 'wpinv_prices_include_tax', $is_inclusive ); |
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} |
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/** |
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* Checks whether we should round per rate or per subtotal |
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* |
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* @return bool |
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*/ |
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function wpinv_round_tax_per_tax_rate() { |
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$subtotal_rounding = wpinv_get_option( 'tax_subtotal_rounding', 1 ); |
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return (bool) apply_filters( 'wpinv_round_tax_per_tax_rate', empty( $subtotal_rounding ) ); |
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} |
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/** |
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* Checks whether we should display individual tax rates. |
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* |
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* @return bool |
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*/ |
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function wpinv_display_individual_tax_rates() { |
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$individual = wpinv_get_option( 'tax_display_totals', 'single' ) === 'individual'; |
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return (bool) apply_filters( 'wpinv_display_individual_tax_rates', $individual ); |
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} |
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/** |
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* Retrieves the default tax rate. |
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* |
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* @return float |
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*/ |
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function wpinv_get_default_tax_rate() { |
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$rate = wpinv_get_option( 'tax_rate', 0 ); |
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return (float) apply_filters( 'wpinv_get_default_tax_rate', floatval( $rate ) ); |
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} |
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/** |
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* Checks if we should exempt same country vat. |
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* |
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* @return bool |
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*/ |
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function wpinv_same_country_exempt_vat() { |
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return 'no' === wpinv_get_option( 'vat_same_country_rule', 'vat_too' ); |
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} |
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/** |
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* Retrieves an array of all tax rates. |
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* |
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* @return array |
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*/ |
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function wpinv_get_tax_rates() { |
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return GetPaid_Tax::get_all_tax_rates(); |
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} |
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/** |
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* Retrieves an item's tax rates. |
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* |
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* @param WPInv_Item|GetPaid_Form_Item $item |
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* @param string $country |
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* @param string $state |
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* @return array |
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*/ |
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function getpaid_get_item_tax_rates( $item, $country = '', $state = '' ) { |
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// Abort if the item is not taxable. |
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if ( ! wpinv_is_item_taxable( $item ) ) { |
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return array(); |
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} |
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// Maybe use the store address. |
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if ( wpinv_use_store_address_as_tax_base( $item->get_vat_rule() ) ) { |
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$country = wpinv_get_default_country(); |
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$state = wpinv_get_default_state(); |
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} |
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// Retrieve tax rates. |
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$tax_rates = GetPaid_Tax::get_address_tax_rates( $country, $state ); |
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// Fallback to the default tax rates if non were found. |
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if ( empty( $tax_rates ) ) { |
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$tax_rates = GetPaid_Tax::get_default_tax_rates(); |
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} |
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return apply_filters( 'getpaid_get_item_tax_rates', $tax_rates, $item, $country, $state ); |
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} |
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/** |
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* Filters an item's tax rate. |
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* |
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* @param WPInv_Item|GetPaid_Form_Item $item |
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* @param array $rates |
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* @return array |
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*/ |
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function getpaid_filter_item_tax_rates( $item, $rates ) { |
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$tax_class = $item->get_vat_class(); |
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foreach ( $rates as $i => $rate ) { |
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if ( '_reduced' === $tax_class ) { |
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$rates[ $i ]['rate'] = empty( $rate['reduced_rate'] ) ? 0 : $rate['reduced_rate']; |
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} |
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if ( '_exempt' === $tax_class ) { |
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$rates[ $i ]['rate'] = 0; |
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} |
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} |
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return apply_filters( 'getpaid_filter_item_tax_rates', $rates, $item ); |
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} |
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/** |
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* Retrieves an item's taxes. |
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* |
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* @param float $amount |
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* @param array $rates |
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* @return array |
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*/ |
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function getpaid_calculate_item_taxes( $amount, $rates ) { |
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$is_inclusive = wpinv_prices_include_tax(); |
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$taxes = GetPaid_Tax::calc_tax( $amount, $rates, $is_inclusive ); |
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return apply_filters( 'getpaid_calculate_taxes', $taxes, $amount, $rates ); |
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} |
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/** |
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* Prepares an item's tax. |
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* |
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* @param WPInv_Item|GetPaid_Form_Item $item |
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* @param string $tax_name |
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* @param float $tax_amount |
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* @param float $recurring_tax_amount |
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* @return array |
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*/ |
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function getpaid_prepare_item_tax( $item, $tax_name, $tax_amount, $recurring_tax_amount ) { |
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$initial_tax = $tax_amount; |
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$recurring_tax = 0; |
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if ( $item->is_recurring() ) { |
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$recurring_tax = $recurring_tax_amount; |
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} |
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return array( |
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'name' => sanitize_text_field( $tax_name ), |
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'initial_tax' => $initial_tax, |
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'recurring_tax' => $recurring_tax, |
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); |
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} |
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/** |
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* Sanitizes a VAT number. |
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* |
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* @param string $vat_number |
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* @return string |
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*/ |
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function wpinv_sanitize_vat_number( $vat_number ) { |
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return str_replace( array( ' ', '.', '-', '_', ',' ), '', strtoupper( trim( $vat_number ) ) ); |
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} |
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/** |
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* Validates a vat number via a REGEX. |
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* |
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* @param string $vat_number |
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* @return bool |
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*/ |
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function wpinv_regex_validate_vat_number( $vat_number ) { |
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$country = substr( $vat_number, 0, 2 ); |
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$vatin = substr( $vat_number, 2 ); |
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$regexes = wpinv_get_data( 'vat-number-regexes' ); |
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if ( isset( $regexes[ $country ] ) ) { |
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$regex = $regexes[ $country ]; |
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$regex = '/^(?:' . $regex . ')$/'; |
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return 1 === preg_match( $regex, $vatin ); |
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} |
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// Not an EU state, use filters to validate the number. |
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return apply_filters( 'wpinv_regex_validate_vat_number', true, $vat_number ); |
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} |
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/** |
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* Validates a vat number via a VIES. |
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* |
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* @param string $vat_number |
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* @return bool |
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*/ |
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function wpinv_vies_validate_vat_number( $vat_number ) { |
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$country = substr( $vat_number, 0, 2 ); |
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$vatin = substr( $vat_number, 2 ); |
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$url = add_query_arg( |
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array( |
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'ms' => rawurlencode( $country ), |
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'iso' => rawurlencode( $country ), |
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'vat' => rawurlencode( $vatin ), |
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), |
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'http://ec.europa.eu/taxation_customs/vies/viesquer.do' |
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); |
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$response = wp_remote_get( $url ); |
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$response = wp_remote_retrieve_body( $response ); |
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// Fallback gracefully if the VIES website is down. |
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if ( empty( $response ) ) { |
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return true; |
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} |
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return 1 !== preg_match( '/invalid VAT number/i', $response ); |
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} |
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/** |
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* Validates a vat number. |
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* |
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* @param string $vat_number |
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* @param string $country |
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* @return bool |
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*/ |
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function wpinv_validate_vat_number( $vat_number, $country ) { |
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// In case the vat number does not have a country code... |
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$vat_number = wpinv_sanitize_vat_number( $vat_number ); |
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$_country = substr( $vat_number, 0, 2 ); |
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if ( wpinv_country_name( $_country ) === $_country ) { |
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$vat_number = strtoupper( $country ) . $vat_number; |
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} |
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return wpinv_regex_validate_vat_number( $vat_number ) && wpinv_vies_validate_vat_number( $vat_number ); |
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} |
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365
|
|
|
/** |
366
|
|
|
* Checks whether or not we should validate vat numbers. |
367
|
|
|
* |
368
|
|
|
* @return bool |
369
|
|
|
*/ |
370
|
|
|
function wpinv_should_validate_vat_number() { |
371
|
|
|
$validate = wpinv_get_option( 'validate_vat_number' ); |
372
|
|
|
return ! empty( $validate ); |
373
|
|
|
} |
374
|
|
|
|
375
|
|
|
function wpinv_sales_tax_for_year( $year = null ) { |
376
|
|
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return wpinv_price( wpinv_get_sales_tax_for_year( $year ) ); |
377
|
|
|
} |
378
|
|
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|
379
|
|
|
function wpinv_get_sales_tax_for_year( $year = null ) { |
380
|
|
|
global $wpdb; |
381
|
|
|
|
382
|
|
|
// Start at zero |
383
|
|
|
$tax = 0; |
384
|
|
|
|
385
|
|
|
if ( ! empty( $year ) ) { |
386
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|
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$args = array( |
387
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|
|
'post_type' => 'wpi_invoice', |
388
|
|
|
'post_status' => array( 'publish' ), |
389
|
|
|
'posts_per_page' => -1, |
390
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|
|
'year' => $year, |
391
|
|
|
'fields' => 'ids', |
392
|
|
|
); |
393
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|
|
|
394
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|
|
$payments = get_posts( $args ); |
395
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|
|
$payment_ids = implode( ',', $payments ); |
396
|
|
|
|
397
|
|
|
if ( count( $payments ) > 0 ) { |
398
|
|
|
$sql = "SELECT SUM( meta_value ) FROM $wpdb->postmeta WHERE meta_key = '_wpinv_tax' AND post_id IN( $payment_ids )"; |
399
|
|
|
$tax = $wpdb->get_var( $sql ); |
400
|
|
|
} |
401
|
|
|
} |
402
|
|
|
|
403
|
|
|
return apply_filters( 'wpinv_get_sales_tax_for_year', $tax, $year ); |
404
|
|
|
} |
405
|
|
|
|
406
|
|
|
function wpinv_is_cart_taxed() { |
407
|
|
|
return wpinv_use_taxes(); |
408
|
|
|
} |
409
|
|
|
|
410
|
|
|
function wpinv_prices_show_tax_on_checkout() { |
411
|
|
|
return false; // TODO |
412
|
|
|
$ret = ( wpinv_get_option( 'checkout_include_tax', false ) === 'yes' && wpinv_use_taxes() ); |
413
|
|
|
|
414
|
|
|
return apply_filters( 'wpinv_taxes_on_prices_on_checkout', $ret ); |
415
|
|
|
} |
416
|
|
|
|
417
|
|
|
function wpinv_display_tax_rate() { |
418
|
|
|
$ret = wpinv_use_taxes() && wpinv_get_option( 'display_tax_rate', false ); |
419
|
|
|
|
420
|
|
|
return apply_filters( 'wpinv_display_tax_rate', $ret ); |
421
|
|
|
} |
422
|
|
|
|
423
|
|
|
function wpinv_cart_needs_tax_address_fields() { |
424
|
|
|
if ( ! wpinv_is_cart_taxed() ) { |
425
|
|
|
return false; |
426
|
|
|
} |
427
|
|
|
|
428
|
|
|
return ! did_action( 'wpinv_after_cc_fields', 'wpinv_default_cc_address_fields' ); |
|
|
|
|
429
|
|
|
} |
430
|
|
|
|
431
|
|
|
function wpinv_item_is_tax_exclusive( $item_id = 0 ) { |
432
|
|
|
$ret = (bool)get_post_meta( $item_id, '_wpinv_tax_exclusive', false ); |
433
|
|
|
return apply_filters( 'wpinv_is_tax_exclusive', $ret, $item_id ); |
434
|
|
|
} |
435
|
|
|
|
436
|
|
|
function wpinv_currency_decimal_filter( $decimals = 2 ) { |
437
|
|
|
$currency = wpinv_get_currency(); |
438
|
|
|
|
439
|
|
|
switch ( $currency ) { |
440
|
|
|
case 'RIAL': |
441
|
|
|
case 'JPY': |
442
|
|
|
case 'TWD': |
443
|
|
|
case 'HUF': |
444
|
|
|
$decimals = 0; |
445
|
|
|
break; |
446
|
|
|
} |
447
|
|
|
|
448
|
|
|
return apply_filters( 'wpinv_currency_decimal_count', $decimals, $currency ); |
449
|
|
|
} |
450
|
|
|
|
451
|
|
|
function wpinv_tax_amount() { |
452
|
|
|
$output = 0.00; |
453
|
|
|
|
454
|
|
|
return apply_filters( 'wpinv_tax_amount', $output ); |
455
|
|
|
} |
456
|
|
|
|
457
|
|
|
/** |
458
|
|
|
* Filters the VAT rules to ensure that each item has a VAT rule. |
459
|
|
|
* |
460
|
|
|
* @param string|bool|null $vat_rule |
461
|
|
|
*/ |
462
|
|
|
function getpaid_filter_vat_rule( $vat_rule ) { |
463
|
|
|
|
464
|
|
|
if ( empty( $vat_rule ) ) { |
465
|
|
|
return 'digital'; |
466
|
|
|
} |
467
|
|
|
|
468
|
|
|
return $vat_rule; |
469
|
|
|
} |
470
|
|
|
add_filter( 'wpinv_get_item_vat_rule', 'getpaid_filter_vat_rule' ); |
471
|
|
|
|
472
|
|
|
/** |
473
|
|
|
* Filters the VAT class to ensure that each item has a VAT class. |
474
|
|
|
* |
475
|
|
|
* @param string|bool|null $vat_rule |
476
|
|
|
*/ |
477
|
|
|
function getpaid_filter_vat_class( $vat_class ) { |
478
|
|
|
return empty( $vat_class ) ? '_standard' : $vat_class; |
479
|
|
|
} |
480
|
|
|
add_filter( 'wpinv_get_item_vat_class', 'getpaid_filter_vat_class' ); |
481
|
|
|
|
482
|
|
|
/** |
483
|
|
|
* Returns a list of all tax classes. |
484
|
|
|
* |
485
|
|
|
* @return array |
486
|
|
|
*/ |
487
|
|
|
function getpaid_get_tax_classes() { |
488
|
|
|
|
489
|
|
|
return apply_filters( |
490
|
|
|
'getpaid_tax_classes', |
491
|
|
|
array( |
492
|
|
|
'_standard' => __( 'Standard Tax Rate', 'invoicing' ), |
493
|
|
|
'_reduced' => __( 'Reduced Tax Rate', 'invoicing' ), |
494
|
|
|
'_exempt' => __( 'Tax Exempt', 'invoicing' ), |
495
|
|
|
) |
496
|
|
|
); |
497
|
|
|
|
498
|
|
|
} |
499
|
|
|
|
500
|
|
|
/** |
501
|
|
|
* Returns a list of all tax rules. |
502
|
|
|
* |
503
|
|
|
* @return array |
504
|
|
|
*/ |
505
|
|
|
function getpaid_get_tax_rules( $return = 'label' ) { |
506
|
|
|
return wp_list_pluck( GetPaid_Tax::get_all_tax_rules(), $return, 'key' ); |
507
|
|
|
} |
508
|
|
|
|
509
|
|
|
/** |
510
|
|
|
* Returns the label of a tax class. |
511
|
|
|
* |
512
|
|
|
* @param string $tax_class |
513
|
|
|
* @return string |
514
|
|
|
*/ |
515
|
|
|
function getpaid_get_tax_class_label( $tax_class ) { |
516
|
|
|
|
517
|
|
|
$classes = getpaid_get_tax_classes(); |
518
|
|
|
|
519
|
|
|
if ( isset( $classes[ $tax_class ] ) ) { |
520
|
|
|
return sanitize_text_field( $classes[ $tax_class ] ); |
521
|
|
|
} |
522
|
|
|
|
523
|
|
|
return sanitize_text_field( $tax_class ); |
524
|
|
|
|
525
|
|
|
} |
526
|
|
|
|
527
|
|
|
/** |
528
|
|
|
* Returns the label of a tax rule. |
529
|
|
|
* |
530
|
|
|
* @param string $tax_rule |
531
|
|
|
* @return string |
532
|
|
|
*/ |
533
|
|
|
function getpaid_get_tax_rule_label( $tax_rule ) { |
534
|
|
|
|
535
|
|
|
$rules = getpaid_get_tax_rules(); |
536
|
|
|
|
537
|
|
|
if ( isset( $rules[ $tax_rule ] ) ) { |
538
|
|
|
return sanitize_text_field( $rules[ $tax_rule ] ); |
539
|
|
|
} |
540
|
|
|
|
541
|
|
|
return sanitize_text_field( $tax_rule ); |
542
|
|
|
|
543
|
|
|
} |
544
|
|
|
|
545
|
|
|
/** |
546
|
|
|
* Returns the taxable amount |
547
|
|
|
* |
548
|
|
|
* @param GetPaid_Form_Item $item |
549
|
|
|
* @param string $recurring |
550
|
|
|
* @return string |
551
|
|
|
*/ |
552
|
|
|
function getpaid_get_taxable_amount( $item, $recurring = false ) { |
553
|
|
|
|
554
|
|
|
$taxable_amount = $recurring ? $item->get_recurring_sub_total() : $item->get_sub_total(); |
555
|
|
|
$taxable_amount -= $recurring ? $item->recurring_item_discount : $item->item_discount; |
556
|
|
|
$taxable_amount = max( 0, $taxable_amount ); |
557
|
|
|
return apply_filters( 'getpaid_taxable_amount', $taxable_amount, $item, $recurring ); |
558
|
|
|
|
559
|
|
|
} |
560
|
|
|
|
This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.