eventespresso /
event-espresso-core
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like EE_PMT_Base often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use EE_PMT_Base, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 21 | abstract class EE_PMT_Base |
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| 22 | { |
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| 23 | |||
| 24 | const onsite = 'on-site'; |
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| 25 | const offsite = 'off-site'; |
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| 26 | const offline = 'off-line'; |
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| 27 | |||
| 28 | /** |
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| 29 | * @var EE_Payment_Method |
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| 30 | */ |
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| 31 | protected $_pm_instance = NULL; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var boolean |
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| 35 | */ |
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| 36 | protected $_requires_https = FALSE; |
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| 37 | |||
| 38 | /** |
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| 39 | * @var boolean |
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| 40 | */ |
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| 41 | protected $_has_billing_form; |
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| 42 | |||
| 43 | /** |
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| 44 | * @var EE_Gateway |
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| 45 | */ |
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| 46 | protected $_gateway = NULL; |
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| 47 | |||
| 48 | /** |
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| 49 | * @var EE_Payment_Method_Form |
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| 50 | */ |
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| 51 | protected $_settings_form = NULL; |
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| 52 | |||
| 53 | /** |
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| 54 | * @var EE_Form_Section_Proper |
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| 55 | */ |
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| 56 | protected $_billing_form = NULL; |
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| 57 | |||
| 58 | /** |
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| 59 | * @var boolean |
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| 60 | */ |
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| 61 | protected $_cache_billing_form = TRUE; |
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| 62 | |||
| 63 | /** |
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| 64 | * String of the absolute path to the folder containing this file, with a trailing slash. |
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| 65 | * eg '/public_html/wp-site/wp-content/plugins/event-espresso/payment_methods/Invoice/' |
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| 66 | * @var string |
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| 67 | */ |
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| 68 | protected $_file_folder = NULL; |
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| 69 | |||
| 70 | /** |
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| 71 | * String to the absolute URL to this file (useful for getting its web-accessible resources |
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| 72 | * like images, js, or css) |
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| 73 | * @var string |
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| 74 | */ |
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| 75 | protected $_file_url = NULL; |
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| 76 | |||
| 77 | /** |
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| 78 | * Pretty name for the payment method |
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| 79 | * @var string |
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| 80 | */ |
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| 81 | protected $_pretty_name = NULL; |
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| 82 | |||
| 83 | /** |
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| 84 | * |
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| 85 | * @var string |
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| 86 | */ |
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| 87 | protected $_default_button_url = NULL; |
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| 88 | |||
| 89 | /** |
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| 90 | * |
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| 91 | * @var string |
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| 92 | */ |
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| 93 | protected $_default_description = NULL; |
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| 94 | |||
| 95 | |||
| 96 | /** |
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| 97 | * |
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| 98 | * @param EE_Payment_Method $pm_instance |
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| 99 | * @throws EE_Error |
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| 100 | * @return EE_PMT_Base |
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| 101 | */ |
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| 102 | function __construct($pm_instance = NULL) |
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| 103 | { |
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| 104 | if ($pm_instance instanceof EE_Payment_Method) { |
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| 105 | $this->set_instance($pm_instance); |
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| 106 | } |
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| 107 | if ($this->_gateway) { |
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| 108 | $this->_gateway->set_payment_model(EEM_Payment::instance()); |
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| 109 | $this->_gateway->set_payment_log(EEM_Change_Log::instance()); |
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| 110 | $this->_gateway->set_template_helper(new EEH_Template()); |
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| 111 | $this->_gateway->set_line_item_helper(new EEH_Line_Item()); |
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| 112 | $this->_gateway->set_money_helper(new EEH_Money()); |
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| 113 | $this->_gateway->set_gateway_data_formatter(new GatewayDataFormatter()); |
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| 114 | $this->_gateway->set_unsupported_character_remover(new AsciiOnly()); |
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| 115 | do_action('AHEE__EE_PMT_Base___construct__done_initializing_gateway_class', $this, $this->_gateway); |
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| 116 | } |
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| 117 | if (!isset($this->_has_billing_form)) { |
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| 118 | // by default, On Site gateways have a billing form |
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| 119 | if ($this->payment_occurs() == EE_PMT_Base::onsite) { |
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| 120 | $this->set_has_billing_form(true); |
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| 121 | } else { |
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| 122 | $this->set_has_billing_form(false); |
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| 123 | } |
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| 124 | } |
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| 125 | |||
| 126 | if (!$this->_pretty_name) { |
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| 127 | throw new EE_Error(sprintf(__("You must set the pretty name for the Payment Method Type in the constructor (_pretty_name), and please make it internationalized", "event_espresso"))); |
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| 128 | } |
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| 129 | //if the child didn't specify a default button, use the credit card one |
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| 130 | if ($this->_default_button_url === NULL) { |
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| 131 | $this->_default_button_url = EE_PLUGIN_DIR_URL . 'payment_methods' . DS . 'pay-by-credit-card.png'; |
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| 132 | } |
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| 133 | } |
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| 134 | |||
| 135 | |||
| 136 | /** |
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| 137 | * @param boolean $has_billing_form |
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| 138 | */ |
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| 139 | public function set_has_billing_form($has_billing_form) |
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| 140 | { |
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| 141 | $this->_has_billing_form = filter_var($has_billing_form, FILTER_VALIDATE_BOOLEAN); |
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| 142 | } |
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| 143 | |||
| 144 | |||
| 145 | /** |
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| 146 | * sets the file_folder property |
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| 147 | */ |
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| 148 | protected function _set_file_folder() |
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| 149 | { |
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| 150 | $reflector = new ReflectionClass(get_class($this)); |
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| 151 | $fn = $reflector->getFileName(); |
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| 152 | $this->_file_folder = dirname($fn) . DS; |
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| 153 | } |
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| 154 | |||
| 155 | |||
| 156 | /** |
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| 157 | * sets the file URL with a trailing slash for this PMT |
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| 158 | */ |
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| 159 | protected function _set_file_url() |
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| 160 | { |
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| 161 | $plugins_dir_fixed = str_replace('\\', DS, WP_PLUGIN_DIR); |
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| 162 | $file_folder_fixed = str_replace('\\', DS, $this->file_folder()); |
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| 163 | $file_path = str_replace($plugins_dir_fixed, WP_PLUGIN_URL, $file_folder_fixed); |
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| 164 | $this->_file_url = $file_path; |
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| 165 | } |
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| 166 | |||
| 167 | /** |
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| 168 | * Gets the default description on all payment methods of this type |
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| 169 | * @return string |
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| 170 | */ |
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| 171 | public function default_description() |
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| 172 | { |
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| 173 | return $this->_default_description; |
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| 174 | } |
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| 175 | |||
| 176 | |||
| 177 | /** |
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| 178 | * Returns the folder containing the PMT child class, with a trailing slash |
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| 179 | * @return string |
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| 180 | */ |
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| 181 | public function file_folder() |
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| 182 | { |
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| 183 | if (!$this->_file_folder) { |
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| 184 | $this->_set_file_folder(); |
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| 185 | } |
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| 186 | return $this->_file_folder; |
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| 187 | } |
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| 188 | |||
| 189 | |||
| 190 | /** |
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| 191 | * @return string |
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| 192 | */ |
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| 193 | public function file_url() |
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| 194 | { |
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| 195 | if (!$this->_file_url) { |
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| 196 | $this->_set_file_url(); |
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| 197 | } |
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| 198 | return $this->_file_url; |
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| 199 | } |
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| 200 | |||
| 201 | |||
| 202 | /** |
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| 203 | * Sets the payment method instance this payment method type is for. |
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| 204 | * Its important teh payment method instance is set before |
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| 205 | * @param EE_Payment_Method $payment_method_instance |
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| 206 | */ |
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| 207 | function set_instance($payment_method_instance) |
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| 208 | { |
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| 209 | $this->_pm_instance = $payment_method_instance; |
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| 210 | //if they have already requested the settings form, make sure its |
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| 211 | //data matches this model object |
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| 212 | if ($this->_settings_form) { |
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| 213 | $this->settings_form()->populate_model_obj($payment_method_instance); |
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| 214 | } |
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| 215 | if ($this->_gateway && $this->_gateway instanceof EE_Gateway) { |
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| 216 | $this->_gateway->set_settings($payment_method_instance->settings_array()); |
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| 217 | } |
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| 218 | } |
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| 219 | |||
| 220 | |||
| 221 | /** |
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| 222 | * Gets teh form for displaying to admins where they setup the payment method |
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| 223 | * @return EE_Payment_Method_Form |
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| 224 | */ |
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| 225 | function settings_form() |
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| 226 | { |
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| 227 | if (!$this->_settings_form) { |
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| 228 | $this->_settings_form = $this->generate_new_settings_form(); |
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| 229 | $this->_settings_form->set_payment_method_type($this); |
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| 230 | //if we have already assigned a model object to this pmt, make |
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| 231 | //sure its reflected in teh form we just generated |
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| 232 | if ($this->_pm_instance) { |
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| 233 | $this->_settings_form->populate_model_obj($this->_pm_instance); |
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| 234 | } |
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| 235 | } |
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| 236 | return $this->_settings_form; |
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| 237 | } |
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| 238 | |||
| 239 | |||
| 240 | /** |
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| 241 | * Gets the form for all the settings related to this payment method type |
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| 242 | * @return EE_Payment_Method_Form |
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| 243 | */ |
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| 244 | abstract function generate_new_settings_form(); |
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| 245 | |||
| 246 | |||
| 247 | /** |
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| 248 | * Sets the form for settings. This may be useful if we have already received |
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| 249 | * a form submission and have form data it in, and want to use it anytime we're showing |
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| 250 | * this payment method type's settings form later in the request |
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| 251 | * @param EE_Payment_Method_Form $form |
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| 252 | */ |
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| 253 | public function set_settings_form($form) |
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| 254 | { |
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| 255 | $this->_settings_form = $form; |
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| 256 | } |
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| 257 | |||
| 258 | |||
| 259 | /** |
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| 260 | * @return boolean |
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| 261 | */ |
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| 262 | public function has_billing_form() |
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| 263 | { |
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| 264 | return $this->_has_billing_form; |
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| 265 | } |
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| 266 | |||
| 267 | |||
| 268 | /** |
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| 269 | * Gets the form for displaying to attendees where they can enter their billing info |
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| 270 | * which will be sent to teh gateway (can be null) |
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| 271 | * |
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| 272 | * @param \EE_Transaction $transaction |
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| 273 | * @param array $extra_args |
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| 274 | * @return \EE_Billing_Attendee_Info_Form|\EE_Billing_Info_Form|null |
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| 275 | */ |
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| 276 | public function billing_form(EE_Transaction $transaction = NULL, $extra_args = array()) |
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| 277 | { |
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| 278 | // has billing form already been regenerated ? or overwrite cache? |
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| 279 | if (!$this->_billing_form instanceof EE_Billing_Info_Form || !$this->_cache_billing_form) { |
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| 280 | $this->_billing_form = $this->generate_new_billing_form($transaction, $extra_args); |
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| 281 | } |
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| 282 | //if we know who the attendee is, and this is a billing form |
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| 283 | //that uses attendee info, populate it |
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| 284 | if ( |
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| 285 | apply_filters( |
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| 286 | 'FHEE__populate_billing_form_fields_from_attendee', |
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| 287 | ( |
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| 288 | $this->_billing_form instanceof EE_Billing_Attendee_Info_Form |
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| 289 | && $transaction instanceof EE_Transaction |
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| 290 | && $transaction->primary_registration() instanceof EE_Registration |
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| 291 | && $transaction->primary_registration()->attendee() instanceof EE_Attendee |
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| 292 | ), |
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| 293 | $this->_billing_form, |
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| 294 | $transaction |
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| 295 | ) |
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| 296 | ) { |
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| 297 | $this->_billing_form->populate_from_attendee($transaction->primary_registration()->attendee()); |
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| 298 | } |
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| 299 | return $this->_billing_form; |
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| 300 | } |
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| 301 | |||
| 302 | |||
| 303 | /** |
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| 304 | * Creates the billing form for this payment method type |
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| 305 | * @param \EE_Transaction $transaction |
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| 306 | * @return \EE_Billing_Info_Form |
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| 307 | */ |
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| 308 | abstract function generate_new_billing_form(EE_Transaction $transaction = NULL); |
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| 309 | |||
| 310 | |||
| 311 | /** |
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| 312 | * apply_billing_form_debug_settings |
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| 313 | * applies debug data to the form |
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| 314 | * |
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| 315 | * @param \EE_Billing_Info_Form $billing_form |
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| 316 | * @return \EE_Billing_Info_Form |
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| 317 | */ |
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| 318 | public function apply_billing_form_debug_settings(EE_Billing_Info_Form $billing_form) |
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| 319 | { |
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| 320 | return $billing_form; |
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| 321 | } |
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| 322 | |||
| 323 | |||
| 324 | /** |
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| 325 | * Sets the billing form for this payment method type. You may want to use this |
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| 326 | * if you have form |
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| 327 | * @param EE_Payment_Method $form |
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| 328 | */ |
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| 329 | public function set_billing_form($form) |
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| 333 | |||
| 334 | |||
| 335 | /** |
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| 336 | * Returns whether or not this payment method requires HTTPS to be used |
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| 337 | * @return boolean |
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| 338 | */ |
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| 339 | function requires_https() |
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| 343 | |||
| 344 | |||
| 345 | /** |
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| 346 | * |
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| 347 | * @param EE_Transaction $transaction |
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| 348 | * @param float $amount |
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| 349 | * @param EE_Billing_Info_Form $billing_info |
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| 350 | * @param string $return_url |
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| 351 | * @param string $fail_url |
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| 352 | * @param string $method |
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| 353 | * @param bool $by_admin |
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| 354 | * @return EE_Payment |
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| 355 | * @throws EE_Error |
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| 356 | */ |
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| 357 | function process_payment(EE_Transaction $transaction, $amount = null, $billing_info = null, $return_url = null, $fail_url = '', $method = 'CART', $by_admin = false) |
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| 447 | |||
| 448 | /** |
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| 449 | * Gets the values we want to pass onto the gateway. Normally these |
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| 450 | * are just the 'pretty' values, but there may be times the data may need |
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| 451 | * a little massaging. Proper subsections will become arrays of inputs |
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| 452 | * @param EE_Billing_Info_Form $billing_form |
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| 453 | * @return array |
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| 454 | */ |
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| 455 | protected function _get_billing_values_from_form($billing_form) |
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| 463 | |||
| 464 | |||
| 465 | /** |
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| 466 | * Handles an instant payment notification when the transaction is known (by default). |
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| 467 | * @param array $req_data |
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| 468 | * @param EE_Transaction $transaction |
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| 469 | * @return EE_Payment |
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| 470 | * @throws EE_Error |
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| 471 | */ |
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| 472 | public function handle_ipn($req_data, $transaction) |
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| 482 | |||
| 483 | |||
| 484 | /** |
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| 485 | * Saves the billing info onto the attendee of the primary registrant on this transaction, and |
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| 486 | * cleans it first. |
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| 487 | * @param EE_Billing_Attendee_Info_Form $billing_form |
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| 488 | * @param EE_Transaction $transaction |
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| 489 | * @return boolean success |
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| 490 | */ |
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| 491 | protected function _save_billing_info_to_attendee($billing_form, $transaction) |
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| 492 | { |
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| 493 | View Code Duplication | if (!$transaction || !$transaction instanceof EE_Transaction) { |
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| 494 | EE_Error::add_error(__("Cannot save billing info because no transaction was specified", "event_espresso"), __FILE__, __FUNCTION__, __LINE__); |
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| 495 | return false; |
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| 496 | } |
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| 497 | $primary_reg = $transaction->primary_registration(); |
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| 498 | if (!$primary_reg) { |
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| 499 | EE_Error::add_error(__("Cannot save billing info because the transaction has no primary registration", "event_espresso"), __FILE__, __FUNCTION__, __LINE__); |
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| 500 | return false; |
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| 501 | } |
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| 502 | $attendee = $primary_reg->attendee(); |
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| 503 | if (!$attendee) { |
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| 504 | EE_Error::add_error(__("Cannot save billing info because the transaction's primary registration has no attendee!", "event_espresso"), __FILE__, __FUNCTION__, __LINE__); |
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| 505 | return false; |
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| 506 | } |
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| 507 | return $attendee->save_and_clean_billing_info_for_payment_method($billing_form, $transaction->payment_method()); |
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| 508 | |||
| 509 | } |
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| 510 | |||
| 511 | |||
| 512 | /** |
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| 513 | * Gets the payment this IPN is for. Children may often want to |
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| 514 | * override this to inspect the request |
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| 515 | * @param EE_Transaction $transaction |
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| 516 | * @param array $req_data |
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| 517 | * @return EE_Payment |
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| 518 | */ |
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| 519 | protected function find_payment_for_ipn(EE_Transaction $transaction, $req_data = array()) |
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| 523 | |||
| 524 | |||
| 525 | /** |
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| 526 | * In case generic code cannot provide the payment processor with a specific payment method |
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| 527 | * and transaction, it will try calling this method on each activate payment method. |
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| 528 | * If the payment method is able to identify the request as being for it, it should fetch |
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| 529 | * the payment its for and return it. If not, it should throw an EE_Error to indicate it cannot |
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| 530 | * handle the IPN |
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| 531 | * @param array $req_data |
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| 532 | * @return EE_Payment only if this payment method can find the info its needs from $req_data |
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| 533 | * and identifies the IPN as being for this payment method (not just fo ra payment method of this type) |
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| 534 | * @throws EE_Error |
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| 535 | */ |
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| 536 | public function handle_unclaimed_ipn($req_data = array()) |
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| 540 | |||
| 541 | |||
| 542 | /** |
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| 543 | * Logic to be accomplished when the payment attempt is complete. |
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| 544 | * Most payment methods don't need to do anything at this point; but some, like Mijireh, do. |
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| 545 | * (Mijireh is an offsite gateway which doesn't send an IPN. So when the user returns to EE from |
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| 546 | * mijireh, this method needs to be called so the Mijireh PM can ping Mijireh to know the status |
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| 547 | * of the payment). Fed a transaction because it's always assumed to be the last payment that |
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| 548 | * we're dealing with. Returns that last payment (if there is one) |
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| 549 | * |
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| 550 | * @param EE_Transaction $transaction |
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| 551 | * @return EE_Payment |
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| 552 | */ |
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| 553 | public function finalize_payment_for($transaction) |
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| 557 | |||
| 558 | |||
| 559 | /** |
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| 560 | * Whether or not this payment method's gateway supports sending refund requests |
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| 561 | * @return boolean |
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| 562 | */ |
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| 563 | public function supports_sending_refunds() |
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| 571 | |||
| 572 | |||
| 573 | /** |
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| 574 | * |
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| 575 | * @param EE_Payment $payment |
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| 576 | * @param array $refund_info |
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| 577 | * @throws EE_Error |
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| 578 | * @return EE_Payment |
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| 579 | */ |
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| 580 | public function process_refund(EE_Payment $payment, $refund_info = array()) |
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| 593 | |||
| 594 | |||
| 595 | /** |
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| 596 | * Returns one the class's constants onsite,offsite, or offline, depending on this |
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| 597 | * payment method's gateway. |
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| 598 | * @return string |
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| 599 | * @throws EE_Error |
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| 600 | */ |
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| 601 | public function payment_occurs() |
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| 613 | |||
| 614 | |||
| 615 | /** |
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| 616 | * For adding any html output ab ove the payment overview. |
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| 617 | * Many gateways won't want ot display anything, so this function just returns an empty string. |
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| 618 | * Other gateways may want to override this, such as offline gateways. |
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| 619 | * @param EE_Payment $payment |
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| 620 | * @return string |
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| 621 | */ |
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| 622 | public function payment_overview_content(EE_Payment $payment) |
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| 626 | |||
| 627 | |||
| 628 | /** |
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| 629 | * @return array where keys are the help tab name, |
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| 630 | * values are: array { |
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| 631 | * @type string $title i18n name for the help tab |
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| 632 | * @type string $filename name of the file located in ./help_tabs/ (ie, in a folder next to this file) |
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| 633 | * @type array $template_args any arguments you want passed to the template file while rendering. |
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| 634 | * Keys will be variable names and values with be their values. |
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| 635 | */ |
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| 636 | public function help_tabs_config() |
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| 640 | |||
| 641 | |||
| 642 | /** |
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| 643 | * The system name for this PMT (eg AIM, Paypal_Pro, Invoice... what gets put into |
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| 644 | * the payment method's table's PMT_type column) |
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| 645 | * @return string |
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| 646 | */ |
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| 647 | public function system_name() |
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| 652 | |||
| 653 | |||
| 654 | /** |
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| 655 | * A pretty i18n version of the PMT name |
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| 656 | * @return string |
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| 657 | */ |
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| 658 | public function pretty_name() |
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| 662 | |||
| 663 | |||
| 664 | /** |
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| 665 | * Gets the default absolute URL to the payment method type's button |
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| 666 | * @return string |
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| 667 | */ |
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| 668 | public function default_button_url() |
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| 672 | |||
| 673 | |||
| 674 | /** |
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| 675 | * Gets the gateway used by this payment method (if any) |
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| 676 | * @return EE_Gateway |
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| 677 | */ |
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| 678 | public function get_gateway() |
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| 682 | |||
| 683 | |||
| 684 | /** |
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| 685 | * @return string html for the link to a help tab |
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| 686 | */ |
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| 687 | public function get_help_tab_link() |
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| 691 | |||
| 692 | |||
| 693 | /** |
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| 694 | * Returns the name of the help tab for this PMT |
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| 695 | * @return string |
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| 696 | */ |
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| 697 | public function get_help_tab_name() |
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| 701 | |||
| 702 | /** |
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| 703 | * The name of the wp capability that should be associated with the usage of |
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| 704 | * this PMT by an admin |
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| 705 | * @return string |
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| 706 | */ |
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| 707 | public function cap_name() |
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| 711 | |||
| 712 | /** |
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| 713 | * Called by client code to tell the gateway that if it wants to change |
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| 714 | * the transaction or line items or registrations related to teh payment it already |
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| 715 | * processed (we think, but possibly not) that now's the time to do it. |
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| 716 | * It is expected that gateways will store any info they need for this on the PAY_details, |
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| 717 | * or maybe an extra meta value |
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| 718 | * @param EE_Payment $payment |
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| 719 | * @return void |
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| 720 | */ |
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| 721 | public function update_txn_based_on_payment($payment) |
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| 727 | |||
| 728 | /** |
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| 729 | * Returns a string of HTML describing this payment method type for an admin, |
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| 730 | * primarily intended for them to read before activating it. |
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| 731 | * The easiest way to set this is to create a folder 'templates' alongside |
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| 732 | * your EE_PMT_{System_Name} file, and in it create a file named "{system_name}_intro.template.php". |
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| 733 | * Eg, if your payment method file is named "EE_PMT_Foo_Bar.pm.php", |
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| 734 | * then you'd create a file named "templates" in the same folder as it, and name the file |
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| 735 | * "foo_bar_intro.template.php", and its content will be returned by this method |
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| 736 | * @return string |
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| 737 | */ |
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| 738 | public function introductory_html() |
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| 742 | |||
| 743 | |||
| 744 | } |
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| 745 |
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Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.