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_Checkout 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_Checkout, and based on these observations, apply Extract Interface, too.
1 | <?php if ( ! defined('EVENT_ESPRESSO_VERSION')) { exit('No direct script access allowed'); } |
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14 | class EE_Checkout { |
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15 | |||
16 | /** |
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17 | * whether current request originated from the EE admin |
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18 | * @type bool |
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19 | */ |
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20 | public $admin_request = FALSE; |
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21 | |||
22 | /** |
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23 | * whether returning to edit attendee information or to retry a payment |
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24 | * @type bool |
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25 | */ |
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26 | public $revisit = FALSE; |
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27 | |||
28 | /** |
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29 | * whether the primary registrant is returning to edit attendee information or to retry a payment |
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30 | * @type bool |
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31 | */ |
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32 | public $primary_revisit = FALSE; |
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33 | |||
34 | /** |
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35 | * is registration allowed to progress or halted for some reason such as failing to pass recaptcha? |
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36 | * @type bool |
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37 | */ |
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38 | public $continue_reg = TRUE; |
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39 | |||
40 | /** |
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41 | * redirect to thank you page ? |
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42 | * @type bool |
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43 | */ |
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44 | public $redirect = FALSE; |
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45 | |||
46 | /** |
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47 | * generate the reg form or not ? |
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48 | * @type bool |
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49 | */ |
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50 | public $generate_reg_form = TRUE; |
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51 | |||
52 | /** |
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53 | * process a reg form submission or not ? |
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54 | * @type bool |
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55 | */ |
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56 | public $process_form_submission = FALSE; |
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57 | |||
58 | /** |
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59 | * tracks whether the TXN status modified during this checkout |
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60 | * |
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61 | * @type bool |
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62 | */ |
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63 | public $txn_status_updated = FALSE; |
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64 | |||
65 | /** |
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66 | * only triggered to true after absolutely everything has finished. |
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67 | * |
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68 | * @type bool |
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69 | */ |
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70 | protected $exit_spco = FALSE; |
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71 | |||
72 | /** |
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73 | * tracks whether any of the TXN's Registrations statuses modified during this checkout |
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74 | * indexed by registration ID |
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75 | * |
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76 | * @type array |
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77 | */ |
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78 | protected $reg_status_updated = array(); |
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79 | |||
80 | /** |
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81 | * total number of tickets that were in the cart |
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82 | * @type int |
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83 | */ |
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84 | public $total_ticket_count = 0; |
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85 | |||
86 | /** |
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87 | * corresponds loosely to EE_Transaction::remaining() |
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88 | * but can be modified by SPCO |
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89 | * |
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90 | * @type float |
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91 | */ |
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92 | public $amount_owing = 0; |
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93 | |||
94 | /** |
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95 | * the reg step slug from the incoming request |
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96 | * @type string |
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97 | */ |
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98 | public $step = ''; |
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99 | |||
100 | /** |
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101 | * the reg step slug for a step being edited |
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102 | * @type string |
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103 | */ |
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104 | public $edit_step = ''; |
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105 | |||
106 | /** |
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107 | * the action being performed on the current step |
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108 | * @type string |
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109 | */ |
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110 | public $action = ''; |
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111 | |||
112 | /** |
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113 | * reg_url_link for a previously saved registration |
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114 | * @type string |
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115 | */ |
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116 | public $reg_url_link = ''; |
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117 | |||
118 | /** |
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119 | * string slug for the payment method that was selected during the payment options step |
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120 | * @type string |
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121 | */ |
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122 | public $selected_method_of_payment = ''; |
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123 | |||
124 | /** |
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125 | * base url for the site's registration checkout page - additional url params will be added to this |
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126 | * @type string |
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127 | */ |
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128 | public $reg_page_base_url = ''; |
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129 | |||
130 | /** |
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131 | * base url for the site's registration cancelled page - additional url params will be added to this |
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132 | * @type string |
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133 | */ |
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134 | public $cancel_page_url = ''; |
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135 | |||
136 | /** |
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137 | * base url for the site's thank you page - additional url params will be added to this |
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138 | * @type string |
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139 | */ |
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140 | public $thank_you_page_url = ''; |
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141 | |||
142 | /** |
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143 | * base url for any redirects - additional url params will be added to this |
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144 | * @type string |
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145 | */ |
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146 | public $redirect_url = ''; |
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147 | |||
148 | /** |
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149 | * form of POST data for use with off-site gateways |
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150 | * @type string |
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151 | */ |
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152 | public $redirect_form = ''; |
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153 | |||
154 | /** |
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155 | * array of query where params to use when retrieving cached registrations from $this->checkout->transaction |
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156 | * @type array |
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157 | */ |
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158 | public $reg_cache_where_params = array(); |
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159 | |||
160 | /** |
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161 | * a class for managing and creating the JSON encoded array of data that gets passed back to the client during AJAX requests |
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162 | * @type EE_SPCO_JSON_Response |
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163 | */ |
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164 | public $json_response = NULL; |
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165 | |||
166 | /** |
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167 | * where we are going next in the reg process |
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168 | * @type EE_SPCO_Reg_Step |
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169 | */ |
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170 | public $next_step = NULL; |
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171 | |||
172 | /** |
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173 | * where we are in the reg process |
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174 | * @type EE_SPCO_Reg_Step |
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175 | */ |
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176 | public $current_step = NULL; |
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177 | |||
178 | /** |
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179 | * $_cart - the current cart object |
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180 | * @var EE_CART |
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181 | */ |
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182 | public $cart = NULL; |
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183 | |||
184 | /** |
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185 | * $_transaction - the current transaction object |
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186 | * @var EE_Transaction |
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187 | */ |
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188 | public $transaction = NULL; |
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189 | |||
190 | /** |
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191 | * the related attendee object for the primary registrant |
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192 | * @type EE_Attendee |
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193 | */ |
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194 | public $primary_attendee_obj = NULL; |
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195 | |||
196 | /** |
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197 | * $payment_method - the payment method object for the selected method of payment |
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198 | * @type EE_Payment_Method |
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199 | */ |
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200 | public $payment_method = NULL; |
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201 | |||
202 | /** |
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203 | * $payment - if a payment was successfully made during the reg process, |
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204 | * then here it is !!! |
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205 | * @type EE_Payment |
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206 | */ |
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207 | public $payment = NULL; |
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208 | |||
209 | /** |
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210 | * if a payment method was selected that uses an on-site gateway, then this is the billing form |
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211 | * @type EE_Billing_Info_Form | EE_Billing_Attendee_Info_Form |
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212 | */ |
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213 | public $billing_form = NULL; |
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214 | |||
215 | /** |
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216 | * the entire registration form composed of ALL of the subsections generated by the various reg steps |
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217 | * @type EE_Form_Section_Proper |
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218 | */ |
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219 | public $registration_form = NULL; |
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220 | |||
221 | /** |
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222 | * array of EE_SPCO_Reg_Step objects |
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223 | * @type EE_SPCO_Reg_Step[] |
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224 | */ |
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225 | public $reg_steps = array(); |
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226 | |||
227 | /** |
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228 | * array of EE_Payment_Method objects |
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229 | * @type EE_Payment_Method[] |
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230 | */ |
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231 | public $available_payment_methods = array(); |
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232 | |||
233 | |||
234 | |||
235 | /** |
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236 | * class constructor |
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237 | * |
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238 | * @access public |
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239 | * @return \EE_Checkout |
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|||
240 | */ |
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241 | public function __construct( ) { |
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249 | |||
250 | |||
251 | |||
252 | /** |
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253 | * returns true if ANY reg status was updated during checkout |
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254 | * @return array |
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255 | */ |
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256 | public function any_reg_status_updated() { |
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257 | foreach ( $this->reg_status_updated as $reg_status ) { |
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258 | if ( $reg_status ) { |
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259 | return true; |
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260 | } |
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261 | } |
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262 | return false; |
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263 | } |
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264 | |||
265 | |||
266 | |||
267 | /** |
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268 | * @param $REG_ID |
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269 | * @return array |
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270 | */ |
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271 | public function reg_status_updated( $REG_ID ) { |
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274 | |||
275 | |||
276 | |||
277 | /** |
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278 | * @param $REG_ID |
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279 | * @param $reg_status |
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280 | */ |
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281 | public function set_reg_status_updated( $REG_ID, $reg_status ) { |
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284 | |||
285 | |||
286 | |||
287 | /** |
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288 | * exit_spco |
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289 | * |
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290 | * @return bool |
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291 | */ |
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292 | public function exit_spco() { |
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295 | |||
296 | |||
297 | |||
298 | /** |
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299 | * set_exit_spco |
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300 | * can ONLY be set by the Finalize_Registration reg step |
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301 | */ |
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302 | public function set_exit_spco() { |
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307 | |||
308 | |||
309 | |||
310 | |||
311 | |||
312 | /** |
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313 | * reset_for_current_request |
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314 | * |
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315 | * @access public |
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316 | * @return void |
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317 | */ |
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318 | public function reset_for_current_request() { |
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332 | |||
333 | |||
334 | |||
335 | /** |
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336 | * add_reg_step |
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337 | * |
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338 | * @access public |
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339 | * @param EE_SPCO_Reg_Step $reg_step_obj |
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340 | * @return void |
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341 | */ |
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342 | public function add_reg_step( EE_SPCO_Reg_Step $reg_step_obj ) { |
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345 | |||
346 | |||
347 | |||
348 | /** |
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349 | * skip_reg_step |
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350 | * |
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351 | * if the current reg step does not need to run for some reason, |
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352 | * then this will advance SPCO to the next reg step, |
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353 | * and mark the skipped step as completed |
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354 | * |
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355 | * @access public |
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356 | * @param string $reg_step_slug |
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357 | * @return void |
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358 | */ |
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359 | public function skip_reg_step( $reg_step_slug = '' ) { |
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360 | $step_to_skip = $this->find_reg_step( $reg_step_slug ); |
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361 | if ( $step_to_skip instanceof EE_SPCO_Reg_Step && $step_to_skip->is_current_step() ) { |
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362 | // advance to the next step |
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363 | $this->set_current_step( $this->next_step->slug() ); |
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364 | $step_to_skip->set_is_current_step( false ); |
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365 | $step_to_skip->set_completed(); |
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366 | $this->set_reg_step_initiated( $this->current_step ); |
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367 | } |
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368 | } |
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369 | |||
370 | |||
371 | |||
372 | /** |
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373 | * remove_reg_step |
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374 | * |
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375 | * @access public |
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376 | * @param string $reg_step_slug |
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377 | * @param bool $reset whether to reset reg steps after removal |
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378 | * @throws EE_Error |
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379 | */ |
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380 | public function remove_reg_step( $reg_step_slug = '', $reset = true ) { |
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381 | unset( $this->reg_steps[ $reg_step_slug ] ); |
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382 | if ( $this->transaction instanceof EE_Transaction ) { |
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383 | /** @type EE_Transaction_Processor $transaction_processor */ |
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384 | $transaction_processor = EE_Registry::instance()->load_class( 'Transaction_Processor' ); |
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385 | // now remove reg step from TXN and save |
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386 | $transaction_processor->remove_reg_step( $this->transaction, $reg_step_slug ); |
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387 | $this->transaction->save(); |
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388 | } |
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389 | if ( $reset ) { |
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390 | $this->reset_reg_steps(); |
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391 | } |
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392 | } |
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393 | |||
394 | |||
395 | |||
396 | /** |
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397 | * set_reg_step_order |
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398 | * |
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399 | * @access public |
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400 | * @param string $reg_step_slug |
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401 | * @param int $order |
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402 | * @return void |
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403 | */ |
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404 | public function set_reg_step_order( $reg_step_slug = '', $order = 100 ) { |
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409 | |||
410 | |||
411 | |||
412 | /** |
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413 | * set_current_step |
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414 | * |
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415 | * @access public |
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416 | * @param string $current_step |
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417 | * @return void |
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418 | */ |
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419 | public function set_current_step( $current_step ) { |
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442 | |||
443 | |||
444 | |||
445 | /** |
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446 | * set_next_step |
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447 | * advances the reg_steps array pointer and sets the next step, then reverses pointer back to the current step |
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448 | * |
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449 | * @access public |
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450 | * @return void |
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451 | */ |
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452 | public function set_next_step() { |
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469 | |||
470 | |||
471 | |||
472 | |||
473 | /** |
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474 | * get_next_reg_step |
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475 | * this simply returns the next step from reg_steps array |
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476 | * |
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477 | * @access public |
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478 | * @return EE_SPCO_Reg_Step | null |
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479 | */ |
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480 | public function get_next_reg_step() { |
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485 | |||
486 | |||
487 | |||
488 | |||
489 | /** |
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490 | * get_prev_reg_step |
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491 | * this simply returns the previous step from reg_steps array |
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492 | * |
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493 | * @access public |
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494 | * @return EE_SPCO_Reg_Step | null |
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495 | */ |
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496 | public function get_prev_reg_step() { |
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501 | |||
502 | |||
503 | |||
504 | /** |
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505 | * sort_reg_steps |
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506 | * |
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507 | * @access public |
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508 | * @return void |
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509 | */ |
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510 | public function sort_reg_steps() { |
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514 | |||
515 | |||
516 | |||
517 | /** |
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518 | * find_reg_step |
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519 | * finds a reg step by the given slug |
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520 | * |
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521 | * @access public |
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522 | * @param string $reg_step_slug |
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523 | * @return EE_SPCO_Reg_Step|null |
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524 | */ |
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525 | public function find_reg_step( $reg_step_slug = '' ) { |
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526 | if ( ! empty( $reg_step_slug ) ) { |
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527 | // copy reg step array |
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528 | $reg_steps = $this->reg_steps; |
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529 | // set pointer to start of array |
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530 | reset( $reg_steps ); |
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531 | // if there is more than one step |
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532 | if ( count( $reg_steps ) > 1 ) { |
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533 | // advance to the current step and set pointer |
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534 | while ( key( $reg_steps ) != $reg_step_slug && key( $reg_steps ) != '' ) { |
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535 | next( $reg_steps ); |
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536 | } |
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537 | return current( $reg_steps ); |
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538 | } |
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539 | } |
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540 | return null; |
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541 | } |
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542 | |||
543 | |||
544 | |||
545 | /** |
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546 | * reg_step_sorting_callback |
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547 | * |
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548 | * @access public |
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549 | * @param EE_SPCO_Reg_Step $reg_step_A |
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550 | * @param EE_SPCO_Reg_Step $reg_step_B |
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551 | * @return array() |
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552 | */ |
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553 | public function reg_step_sorting_callback( EE_SPCO_Reg_Step $reg_step_A, EE_SPCO_Reg_Step $reg_step_B ) { |
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565 | |||
566 | |||
567 | |||
568 | /** |
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569 | * set_reg_step_initiated |
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570 | * |
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571 | * @access public |
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572 | * @param EE_SPCO_Reg_Step $reg_step |
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573 | */ |
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574 | public function set_reg_step_initiated( EE_SPCO_Reg_Step $reg_step ) { |
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575 | // call set_reg_step_initiated ??? |
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576 | if ( |
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577 | // first time visiting SPCO ? |
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578 | ! $this->revisit |
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579 | // and displaying the reg step form for the first time ? |
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580 | && $this->action === 'display_spco_reg_step' |
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581 | ) { |
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582 | /** @type EE_Transaction_Processor $transaction_processor */ |
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583 | $transaction_processor = EE_Registry::instance()->load_class( 'Transaction_Processor' ); |
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584 | // set the start time for this reg step |
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585 | if ( ! $transaction_processor->set_reg_step_initiated( $this->transaction, $reg_step->slug() ) ) { |
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586 | View Code Duplication | if ( WP_DEBUG ) { |
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587 | EE_Error::add_error( |
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588 | sprintf( |
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589 | __( 'The "%1$s" registration step was not initialized properly.', 'event_espresso' ), |
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590 | $reg_step->name() |
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591 | ), |
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592 | __FILE__, __FUNCTION__, __LINE__ |
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593 | ); |
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594 | } |
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595 | }; |
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596 | } |
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597 | } |
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598 | |||
599 | |||
600 | |||
601 | /** |
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602 | * set_reg_step_JSON_info |
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603 | * |
||
604 | * @access public |
||
605 | * @return void |
||
606 | */ |
||
607 | public function set_reg_step_JSON_info() { |
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616 | |||
617 | |||
618 | |||
619 | /** |
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620 | * reset_reg_steps |
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621 | * |
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622 | * @access public |
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623 | * @return bool |
||
624 | */ |
||
625 | public function reset_reg_steps() { |
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633 | |||
634 | |||
635 | |||
636 | /** |
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637 | * get_registration_time_limit |
||
638 | * |
||
639 | * @access public |
||
640 | * @return string |
||
641 | */ |
||
642 | public function get_registration_time_limit() { |
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652 | |||
653 | |||
654 | |||
655 | /** |
||
656 | * payment_required |
||
657 | * @return boolean |
||
658 | */ |
||
659 | public function payment_required() { |
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668 | |||
669 | |||
670 | |||
671 | /** |
||
672 | * initialize_txn_reg_steps_array |
||
673 | * |
||
674 | * @access public |
||
675 | * @return array |
||
676 | */ |
||
677 | public function initialize_txn_reg_steps_array() { |
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684 | |||
685 | |||
686 | |||
687 | /** |
||
688 | * update_txn_reg_steps_array |
||
689 | * |
||
690 | * @access public |
||
691 | * @return bool |
||
692 | */ |
||
693 | public function update_txn_reg_steps_array() { |
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707 | |||
708 | |||
709 | |||
710 | /** |
||
711 | * stash_transaction_and_checkout |
||
712 | * |
||
713 | * @access public |
||
714 | * @return void |
||
715 | */ |
||
716 | public function stash_transaction_and_checkout() { |
||
726 | |||
727 | |||
728 | |||
729 | |||
730 | /** |
||
731 | * track_transaction_and_registration_status_updates |
||
732 | * |
||
733 | * stores whether any updates were made to the TXN or it's related registrations |
||
734 | * |
||
735 | * @access public |
||
736 | * @return bool |
||
737 | */ |
||
738 | public function track_transaction_and_registration_status_updates() { |
||
759 | |||
760 | |||
761 | |||
762 | |||
763 | /** |
||
764 | * visit_allows_processing_of_this_registration |
||
765 | * |
||
766 | * determines if the current SPCO visit should allow the passed EE_Registration to be used in processing. |
||
767 | * one of the following conditions must be met: |
||
768 | * EITHER: A) first time thru SPCO -> process ALL registrations ( NOT a revisit ) |
||
769 | * OR : B) primary registrant is editing info -> process ALL registrations ( primary_revisit ) |
||
770 | * OR : C) another registrant is editing info -> ONLY process their registration ( revisit AND their reg_url_link matches ) |
||
771 | * |
||
772 | * @access public |
||
773 | * @param EE_Registration $registration |
||
774 | * @return bool |
||
775 | */ |
||
776 | public function visit_allows_processing_of_this_registration( EE_Registration $registration ) { |
||
779 | |||
780 | |||
781 | |||
782 | /** |
||
783 | * _transaction_has_primary_registration |
||
784 | * |
||
785 | * @access private |
||
786 | * @return bool |
||
787 | */ |
||
788 | public function transaction_has_primary_registrant() { |
||
791 | |||
792 | |||
793 | |||
794 | /** |
||
795 | * save_all_data |
||
796 | * simply loops through the current transaction and saves all data for each registration |
||
797 | * |
||
798 | * @access public |
||
799 | * @param bool $show_errors |
||
800 | * @return bool |
||
801 | */ |
||
802 | public function save_all_data( $show_errors = TRUE ) { |
||
819 | |||
820 | |||
821 | /** |
||
822 | * _save_registration_attendee |
||
823 | * |
||
824 | * @param EE_Registration $registration |
||
825 | * @param bool $show_errors |
||
826 | * @return void |
||
827 | */ |
||
828 | private function _save_registration( $registration, $show_errors = TRUE ) { |
||
859 | |||
860 | |||
861 | |||
862 | /** |
||
863 | * _save_registration_attendee |
||
864 | * |
||
865 | * @param EE_Registration $registration |
||
866 | * @param bool $show_errors |
||
867 | * @return void |
||
868 | */ |
||
869 | private function _save_registration_attendee( $registration, $show_errors = TRUE ) { |
||
896 | |||
897 | |||
898 | |||
899 | /** |
||
900 | * _save_question_answers |
||
901 | * |
||
902 | * @param EE_Registration $registration |
||
903 | * @param bool $show_errors |
||
904 | * @return void |
||
905 | */ |
||
906 | private function _save_registration_answers( $registration, $show_errors = TRUE ) { |
||
931 | |||
932 | |||
933 | |||
934 | /** |
||
935 | * refresh_all_entities |
||
936 | * will either refresh the entity map with objects form the db or from the checkout cache |
||
937 | * |
||
938 | * @access public |
||
939 | * @param bool $from_db |
||
940 | * @return bool |
||
941 | */ |
||
942 | public function refresh_all_entities( $from_db = false ) { |
||
950 | |||
951 | |||
952 | |||
953 | /** |
||
954 | * refresh_entity_map |
||
955 | * simply loops through the current transaction and updates each |
||
956 | * model's entity map using EEM_Base::refresh_entity_map_from_db() |
||
957 | * |
||
958 | * @access public |
||
959 | * @return bool |
||
960 | */ |
||
961 | protected function refresh_from_db() { |
||
988 | |||
989 | |||
990 | |||
991 | /** |
||
992 | * _refresh_primary_attendee_obj_from_db |
||
993 | * |
||
994 | * @param EE_Transaction $transaction |
||
995 | * @return EE_Attendee | null |
||
996 | */ |
||
997 | protected function _refresh_primary_attendee_obj_from_db( EE_Transaction $transaction ) { |
||
1021 | |||
1022 | |||
1023 | |||
1024 | /** |
||
1025 | * refresh_entity_map |
||
1026 | * simply loops through the current transaction and updates |
||
1027 | * each model's entity map using EEM_Base::refresh_entity_map_with() |
||
1028 | * |
||
1029 | * @access public |
||
1030 | * @return bool |
||
1031 | */ |
||
1032 | protected function refresh_entity_map() { |
||
1076 | |||
1077 | |||
1078 | |||
1079 | /** |
||
1080 | * _refresh_registration |
||
1081 | * |
||
1082 | * @param string | int $reg_cache_ID |
||
1083 | * @param EE_Registration $registration |
||
1084 | * @return void |
||
1085 | */ |
||
1086 | protected function _refresh_registration( $reg_cache_ID, $registration ) { |
||
1103 | |||
1104 | |||
1105 | |||
1106 | /** |
||
1107 | * _save_registration_attendee |
||
1108 | * |
||
1109 | * @param EE_Registration $registration |
||
1110 | * @return void |
||
1111 | */ |
||
1112 | protected function _refresh_registration_attendee( $registration ) { |
||
1125 | |||
1126 | |||
1127 | |||
1128 | /** |
||
1129 | * _refresh_registration_answers |
||
1130 | * |
||
1131 | * @param EE_Registration $registration |
||
1132 | * @return void |
||
1133 | */ |
||
1134 | protected function _refresh_registration_answers( $registration ) { |
||
1152 | |||
1153 | |||
1154 | |||
1155 | /** |
||
1156 | * __wakeup |
||
1157 | * to conserve db space, we are removing the EE_Checkout object from EE_SPCO_Reg_Step objects upon serialization |
||
1158 | * this will reinstate the EE_Checkout object on each EE_SPCO_Reg_Step object |
||
1159 | */ |
||
1160 | function __wakeup() { |
||
1165 | |||
1166 | |||
1167 | |||
1168 | /** |
||
1169 | * debug |
||
1170 | * |
||
1171 | * @param string $class |
||
1172 | * @param string $func |
||
1173 | * @param string $line |
||
1174 | * @param array $info |
||
1175 | * @param bool $display_request |
||
1176 | */ |
||
1177 | function log( $class = '', $func = '', $line = '', $info = array(), $display_request = false ) { |
||
1215 | |||
1216 | |||
1217 | /** |
||
1218 | * _strip_objects |
||
1219 | * |
||
1220 | * @param array $info |
||
1221 | * @return array |
||
1222 | */ |
||
1223 | function _strip_objects( $info = array() ) { |
||
1241 | |||
1242 | |||
1243 | |||
1244 | |||
1245 | } |
||
1246 | // End of file EE_Checkout.class.php |
||
1247 | // Location: /EE_Checkout.class.php |
Adding a
@return
annotation 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.