| 1 | <?php |
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| 2 | /** |
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| 3 | * simple dropdown patForms element that builds and validates enumarated fields. |
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| 4 | * |
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| 5 | * $Id$ |
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| 6 | * |
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| 7 | * @access protected |
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| 8 | * @package patForms |
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| 9 | * @subpackage Element |
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| 10 | */ |
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| 11 | |
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| 12 | /** |
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| 13 | * Error: no default value has been set |
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| 14 | */ |
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| 15 | define( 'PATFORMS_ELEMENT_ENUM_NOTICE_NO_DEFAULT_VALUE_AVAILABLE', 'patForms:Element:Enum:01'); |
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| 16 | |
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| 17 | /** |
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| 18 | * Warning: no values to fill the list with |
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| 19 | */ |
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| 20 | define( 'PATFORMS_ELEMENT_ENUM_WARNING_NO_VALUES', 'patForms:Element:Enum:02' ); |
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| 21 | |
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| 22 | /** |
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| 23 | * simple dropdown patForms element that builds and validates enumarated fields. |
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| 24 | * |
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| 25 | * $Id$ |
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| 26 | * |
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| 27 | * @access protected |
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| 28 | * @package patForms |
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| 29 | * @subpackage Element |
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| 30 | * @author Sebastian Mordziol <argh@php-tools.net> |
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| 31 | * @author Stephan Schmidt <schst@php-tools.net> |
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| 32 | * @license LGPL, see license.txt for details |
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| 33 | */ |
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| 34 | class patForms_Element_Enum extends patForms_Element |
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| 35 | { |
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| 36 | /** |
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| 37 | * Stores the name of the element - this is used mainly by the patForms |
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| 38 | * error management and should be set in every element class. |
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| 39 | * @access public |
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| 40 | */ |
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| 41 | var $elementName = 'Enum'; |
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| 42 | |
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| 43 | /** |
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| 44 | * javascript that will be displayed only once |
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| 45 | * |
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| 46 | * @access private |
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| 47 | * @var array |
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| 48 | */ |
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| 49 | var $globalJavascript = array( |
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| 50 | 'html' => 'Html/Element/Enum.js' |
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| 51 | ); |
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| 52 | |
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| 53 | /** |
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| 54 | * javascript that will be displayed once per instance |
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| 55 | * |
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| 56 | * @access private |
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| 57 | * @var array |
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| 58 | */ |
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| 59 | var $instanceJavascript = array( |
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| 60 | 'html' => "var pfe_[ELEMENT::NAME] = new pFEC_Enum( '[ELEMENT::ID]' );\n" |
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| 61 | ); |
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| 62 | |
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| 63 | /** |
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| 64 | * the type of the element - set this to the type of element you are creating |
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| 65 | * if you want to use the {@link patForms_Element::element2html()} method to |
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| 66 | * create the final HTML tag for your element. |
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| 67 | * |
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| 68 | * @access public |
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| 69 | * @see patForms_Element::element2html() |
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| 70 | */ |
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| 71 | var $elementType = array( "html" => "select", |
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| 72 | ); |
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| 73 | |
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| 74 | /** |
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| 75 | * set here which attributes you want to include in the element if you want to use |
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| 76 | * the {@link patForms_Element::convertDefinition2Attributes()} method to automatically |
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| 77 | * convert the values from your element definition into element attributes. |
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| 78 | * |
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| 79 | * @access protected |
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| 80 | * @see patForms_Element::convertDefinition2Attribute() |
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| 81 | */ |
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| 82 | var $attributeDefinition = array( |
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| 83 | |
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| 84 | 'id' => array( 'required' => false, |
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| 85 | 'format' => 'string', |
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| 86 | 'outputFormats' => array( 'html' ), |
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| 87 | ), |
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| 88 | 'name' => array( 'required' => true, |
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| 89 | 'format' => 'string', |
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| 90 | 'outputFormats' => array( 'html' ), |
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| 91 | ), |
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| 92 | 'title' => array( 'required' => false, |
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| 93 | 'format' => 'string', |
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| 94 | 'outputFormats' => array( 'html' ), |
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| 95 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 96 | ), |
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| 97 | 'description' => array( 'required' => false, |
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| 98 | 'format' => 'string', |
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| 99 | 'outputFormats' => array(), |
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| 100 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 101 | ), |
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| 102 | 'default' => array( 'required' => false, |
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| 103 | 'format' => 'string', |
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| 104 | 'outputFormats' => array(), |
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| 105 | ), |
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| 106 | 'label' => array( 'required' => false, |
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| 107 | 'format' => 'string', |
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| 108 | 'outputFormats' => array(), |
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| 109 | ), |
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| 110 | 'display' => array( 'required' => false, |
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| 111 | 'format' => 'string', |
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| 112 | 'default' => 'yes', |
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| 113 | 'outputFormats' => array(), |
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| 114 | ), |
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| 115 | 'edit' => array( 'required' => false, |
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| 116 | 'format' => 'string', |
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| 117 | 'default' => 'yes', |
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| 118 | 'outputFormats' => array(), |
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| 119 | ), |
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| 120 | 'required' => array( 'required' => false, |
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| 121 | 'format' => 'string', |
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| 122 | 'default' => 'yes', |
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| 123 | 'outputFormats' => array(), |
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| 124 | ), |
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| 125 | 'value' => array( 'required' => false, |
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| 126 | 'format' => 'string', |
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| 127 | 'outputFormats' => array(), |
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| 128 | ), |
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| 129 | 'style' => array( 'required' => false, |
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| 130 | 'outputFormats' => array( 'html' ), |
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| 131 | 'format' => 'string', |
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| 132 | ), |
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| 133 | 'class' => array( 'required' => false, |
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| 134 | 'outputFormats' => array( 'html' ), |
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| 135 | 'format' => 'string', |
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| 136 | ), |
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| 137 | 'onchange' => array( 'required' => false, |
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| 138 | 'format' => 'string', |
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| 139 | 'outputFormats' => array( 'html' ), |
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| 140 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 141 | ), |
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| 142 | 'onclick' => array( 'required' => false, |
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| 143 | 'format' => 'string', |
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| 144 | 'outputFormats' => array( 'html' ), |
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| 145 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 146 | ), |
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| 147 | 'onfocus' => array( 'required' => false, |
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| 148 | 'format' => 'string', |
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| 149 | 'outputFormats' => array( 'html' ), |
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| 150 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 151 | ), |
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| 152 | 'onmouseover' => array( 'required' => false, |
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| 153 | 'format' => 'string', |
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| 154 | 'outputFormats' => array( 'html' ), |
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| 155 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 156 | ), |
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| 157 | 'onmouseout' => array( 'required' => false, |
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| 158 | 'format' => 'string', |
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| 159 | 'outputFormats' => array( 'html' ), |
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| 160 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 161 | ), |
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| 162 | 'onblur' => array( 'required' => false, |
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| 163 | 'format' => 'string', |
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| 164 | 'outputFormats' => array( 'html' ), |
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| 165 | 'modifiers' => array( 'insertSpecials' => array() ), |
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| 166 | ), |
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| 167 | 'accesskey' => array( 'required' => false, |
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| 168 | 'format' => 'string', |
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| 169 | 'outputFormats' => array( 'html' ), |
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| 170 | ), |
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| 171 | 'position' => array( 'required' => false, |
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| 172 | 'format' => 'int', |
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| 173 | 'outputFormats' => array(), |
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| 174 | ), |
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| 175 | 'tabindex' => array( 'required' => false, |
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| 176 | 'format' => 'int', |
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| 177 | 'outputFormats' => array( 'html' ), |
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| 178 | ), |
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| 179 | 'values' => array( 'required' => false, |
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| 180 | 'format' => 'values', |
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| 181 | 'outputFormats' => array(), |
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| 182 | ), |
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| 183 | 'disabled' => array( 'required' => false, |
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| 184 | 'format' => 'string', |
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| 185 | 'default' => 'no', |
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| 186 | 'outputFormats' => array( 'html' ), |
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| 187 | ), |
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| 188 | 'size' => array( 'required' => false, |
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| 189 | 'format' => 'int', |
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| 190 | 'default' => '1', |
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| 191 | 'outputFormats' => array( 'html' ), |
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| 192 | ), |
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| 193 | 'datasource' => array( 'required' => false, |
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| 194 | 'format' => 'datasource', |
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| 195 | 'outputFormats' => array(), |
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| 196 | ), |
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| 197 | 'maxsize' => array( 'required' => false, |
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| 198 | 'format' => 'string', |
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| 199 | 'default' => '5', |
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| 200 | 'outputFormats' => array(), |
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| 201 | ), |
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| 202 | ); |
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| 203 | |
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| 204 | /** |
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| 205 | * define error codes an messages for each form element |
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| 206 | * |
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| 207 | * @access private |
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| 208 | * @var array $validatorErrorCodes |
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| 209 | */ |
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| 210 | var $validatorErrorCodes = array( |
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| 211 | "C" => array( |
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| 212 | 1 => "This field is required, please complete it.", |
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| 213 | 2 => "The value given for the element does not match any of the possible values.", |
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| 214 | ), |
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| 215 | "de" => array( |
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| 216 | 1 => "Pflichtfeld. Bitte vervollständigen Sie Ihre Angabe.", |
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| 217 | 2 => "Der angegebene Wert stimmt mit keinem der möglichen Werte überein.", |
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| 218 | ), |
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| 219 | "fr" => array( |
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| 220 | 1 => "Ce champ est obligatoire.", |
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| 221 | 2 => "La valeur de ce champ ne correspond à aucune des valeurs admises.", |
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| 222 | ) |
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| 223 | ); |
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| 224 | |
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| 225 | /** |
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| 226 | * Stores the value that will be displayed in readonly mode |
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| 227 | * when no entry has been selected, in the available locales. |
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| 228 | * |
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| 229 | * @access private |
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| 230 | * @var array |
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| 231 | */ |
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| 232 | var $defaultReadonlyValue = array( |
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| 233 | "C" => "No selection", |
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| 234 | "de" => "Keine Angabe", |
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| 235 | "fr" => "Pas de sélection.", |
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| 236 | ); |
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| 237 | |
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| 238 | /** |
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| 239 | * stores the data source object for the element - use the {@link setDataSource()} method to |
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| 240 | * define a data source for this element. |
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| 241 | * @access protected |
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| 242 | * @see setDataSource() |
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| 243 | */ |
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| 244 | var $dataSource = false; |
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| 245 | |
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| 246 | /** |
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| 247 | * sets the data source for this element. If you set a data source object, the element will |
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| 248 | * ignore the 'values' attribute and request the values from the data source object. The |
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| 249 | * data source object only needs to implement the getValues() method. |
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| 250 | * |
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| 251 | * @access public |
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| 252 | * @param object &$dataSource The data source to use. |
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| 253 | * @see dataSource |
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| 254 | */ |
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| 255 | function setDataSource( &$dataSource ) |
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| 256 | { |
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| 257 | $this->attributes["datasource"] =& $dataSource; |
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| 258 | } |
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| 259 | |
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| 260 | /** |
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| 261 | * retrieves the values to fill the list with. If a data source object has been set, |
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| 262 | * tries to retrieve them from there, otherwise takes them from the 'values' attribute. |
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| 263 | * |
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| 264 | * @access public |
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| 265 | * @return mixed $values Array with values, or false if failed. |
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| 266 | * @see setDataSource() |
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| 267 | */ |
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| 268 | function getValues() |
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| 269 | { |
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| 270 | $values = array(); |
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| 271 | |
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| 272 | if( isset( $this->attributes["datasource"] ) ) |
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| 273 | { |
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| 274 | if( is_object( $this->attributes["datasource"] ) ) |
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| 275 | { |
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| 276 | $values = $this->attributes["datasource"]->getValues(); |
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| 277 | } |
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| 278 | else |
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| 279 | { |
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| 280 | /** |
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| 281 | * if the datasource is no object, it could |
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| 282 | * be a callback |
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| 283 | * |
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| 284 | * The name of the element will be passed to the callback |
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| 285 | */ |
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| 286 | if( is_callable( $this->attributes["datasource"], false ) ) |
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| 287 | { |
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| 288 | $values = call_user_func( $this->attributes["datasource"], $this->getName() ); |
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| 289 | } |
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| 290 | } |
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| 291 | } |
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| 292 | if (isset($this->attributes["values"])) { |
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| 293 | $values = array_merge( $this->attributes["values"], $values ); |
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| 294 | } |
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| 295 | if( empty( $values ) ) |
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| 296 | { |
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| 297 | return patErrorManager::raiseWarning( |
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| 298 | PATFORMS_ELEMENT_ENUM_WARNING_NO_VALUES, |
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| 299 | 'No values set to create an Enum field', |
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| 300 | 'The Enum element ['.$this->attributes['name'].'] has no values to create a list from' |
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| 301 | ); |
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| 302 | } |
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| 303 | |
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| 304 | return $values; |
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| 305 | } |
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| 306 | |
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| 307 | /** |
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| 308 | * element creation method for the 'HTML' format in the 'default' form mode. |
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| 309 | * |
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| 310 | * @access public |
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| 311 | * @param mixed value of the element |
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| 312 | * @return mixed $element The element, or false if failed. |
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| 313 | */ |
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| 314 | function serializeHtmlDefault( $value ) |
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| 315 | { |
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| 316 | // handle display attribute |
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| 317 | if( $this->attributes['display'] == 'no' ) |
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| 318 | { |
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| 319 | return $this->createDisplaylessTag( $value ); |
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| 320 | } |
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| 321 | |
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| 322 | if( $this->attributes['edit'] == 'no' ) |
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| 323 | { |
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| 324 | return $this->serializeHtmlReadonly( $value ); |
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| 325 | } |
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| 326 | |
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| 327 | $values = $this->getValues(); |
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| 328 | if( patErrorManager::isError( $values ) ) |
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| 329 | { |
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| 330 | return $values; |
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| 331 | } |
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| 332 | |
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| 333 | // automatic size adjustment depending on element value list |
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| 334 | if( $this->attributes['size'] == 'auto' ) |
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| 335 | { |
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| 336 | $maxsize = count( $values ); |
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| 337 | if( $this->attributes['maxsize'] != 'none' && $maxsize > $this->attributes['maxsize'] ) |
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| 338 | { |
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| 339 | $maxsize = $this->attributes['maxsize']; |
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| 340 | } |
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| 341 | |
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| 342 | $this->attributes['size'] = $maxsize; |
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| 343 | } |
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| 344 | |
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| 345 | $attribs = $this->getAttributesFor( $this->getFormat() ); |
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| 346 | $element = $this->createTag( "select", "opening", $attribs ); |
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| 347 | |
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| 348 | foreach( $values as $line => $optionDef ) |
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| 349 | { |
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| 350 | $attribs = array( "value" => $optionDef["value"] ); |
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| 351 | |
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| 352 | if ( isset( $optionDef['disabled'] ) && $optionDef['disabled'] == 'yes' ) |
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| 353 | { |
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| 354 | $attribs['disabled'] = 'disabled'; |
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| 355 | } |
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| 356 | |
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| 357 | if( !empty( $optionDef["value"] ) && $optionDef["value"] == $value ) |
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| 358 | { |
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| 359 | $attribs["selected"] = "selected"; |
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| 360 | } |
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| 361 | |
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| 362 | $element .= $this->createTag( "option", "full", $attribs, $optionDef["label"] ); |
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| 363 | } |
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| 364 | |
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| 365 | $element .= $this->createTag( "select", "closing" ); |
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| 366 | |
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| 367 | // and return to sender... |
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| 368 | return $element; |
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| 369 | } |
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| 370 | |
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| 371 | /** |
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| 372 | * element creation method for the 'HTML' format in the 'readonly' form mode. |
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| 373 | * |
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| 374 | * @access public |
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| 375 | * @param mixed value of the element |
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| 376 | * @return string $value The element's value |
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| 377 | */ |
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| 378 | function serializeHtmlReadonly( $value ) |
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| 379 | { |
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| 380 | $element = null; |
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| 381 | $values = $this->getValues(); |
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| 382 | |
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| 383 | if( patErrorManager::isError( $values ) ) |
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| 384 | { |
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| 385 | return $values; |
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| 386 | } |
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| 387 | |
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| 388 | $tag = $this->createDisplaylessTag( $value ); |
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| 389 | |
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| 390 | if( $this->attributes['display'] == 'no' ) |
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| 391 | { |
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| 392 | return $tag; |
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| 393 | } |
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| 394 | |
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| 395 | // empty value -> no entry selected - display the readonly |
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| 396 | // default value instead. |
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| 397 | if( $value === '' ) |
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| 398 | { |
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| 399 | return $this->getReadonlyDefaultValue().$tag; |
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| 400 | } |
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| 401 | |
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| 402 | foreach( $values as $line => $optionDef ) |
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| 403 | { |
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| 404 | if( $optionDef["value"] == $value ) |
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| 405 | { |
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| 406 | $element = $optionDef["label"]; |
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| 407 | break; |
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| 408 | } |
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| 409 | } |
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| 410 | |
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| 411 | if( empty( $element ) ) |
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| 412 | { |
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| 413 | $element = $this->getReadonlyDefaultValue(); |
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| 414 | } |
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| 415 | |
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| 416 | return $element.$tag; |
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| 417 | } |
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| 418 | |
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| 419 | /** |
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| 420 | * Retrieves the default value to display in the element's readonly mode if the |
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| 421 | * user has not selected any entry, according to the selected locale |
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| 422 | * |
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| 423 | * @access public |
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| 424 | * @return string $defaultValue The default readonly value in the needed locale |
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| 425 | */ |
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| 426 | function getReadonlyDefaultValue() |
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| 427 | { |
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| 428 | $lang = $this->locale; |
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| 429 | |
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| 430 | if( !isset( $this->defaultReadonlyValue[$lang] ) ) |
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| 431 | { |
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| 432 | patErrorManager::raiseNotice( |
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| 433 | PATFORMS_ELEMENT_ENUM_NOTICE_NO_DEFAULT_VALUE_AVAILABLE, |
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| 434 | 'There is no default readonly value available for the locale "'.$lang.'", using default locale "C" instead.' |
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| 435 | ); |
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| 436 | |
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| 437 | return $this->defaultReadonlyValue['C']; |
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| 438 | } |
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| 439 | |
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| 440 | return $this->defaultReadonlyValue[$lang]; |
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| 441 | } |
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| 442 | |
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| 443 | /** |
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| 444 | * validates the element. |
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| 445 | * |
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| 446 | * @access public |
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| 447 | * @param mixed value of the element |
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| 448 | * @return bool $isValid True if element could be validated, false otherwise. |
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| 449 | */ |
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| 450 | function validateElement( $value ) |
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| 451 | { |
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| 452 | $values = $this->getValues(); |
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| 453 | |
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| 454 | if( $values === false ) |
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| 455 | { |
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| 456 | $this->valid = false; |
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| 457 | return false; |
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| 458 | } |
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| 459 | |
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| 460 | // required & empty |
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| 461 | if( isset( $this->attributes["required"] ) && $this->attributes["required"] == "yes" && strlen( $value ) == 0 ) |
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| 462 | { |
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| 463 | $this->addValidationError( 1 ); |
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| 464 | return false; |
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| 465 | } |
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| 466 | |
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| 467 | // is value in values list? |
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| 468 | $found = false; |
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| 469 | foreach( $values as $line => $optionDef ) |
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| 470 | { |
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| 471 | if( $optionDef["value"] == $value ) |
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| 472 | { |
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| 473 | $found = true; |
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| 474 | } |
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| 475 | } |
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| 476 | |
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| 477 | if( !$found ) |
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| 478 | { |
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| 479 | $this->addValidationError( 2 ); |
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| 480 | return false; |
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| 481 | } |
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| 482 | |
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| 483 | return true; |
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| 484 | } |
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| 485 | |
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| 486 | /** |
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| 487 | * create XML representation of the element |
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| 488 | * |
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| 489 | * This can be used when you need to store the structure |
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| 490 | * of your form in flat files or create form templates that can |
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| 491 | * be read by patForms_Parser at a later point. |
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| 492 | * |
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| 493 | * @access public |
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| 494 | * @param string namespace |
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| 495 | * @uses getElementName() |
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| 496 | * @see patForms_Parser |
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| 497 | */ |
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| 498 | function toXML( $namespace = null ) |
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| 499 | { |
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| 500 | $tagName = $this->getElementName(); |
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| 501 | |
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| 502 | // prepend Namespace |
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| 503 | if( $namespace != null ) |
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| 504 | { |
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| 505 | $tagName = "$namespace:$tagName"; |
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| 506 | $optName = "$namespace:Option"; |
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| 507 | } |
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| 508 | else |
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| 509 | $optName = "Option"; |
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| 510 | |
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| 511 | // get all attributes |
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| 512 | $attributes = $this->getAttributes(); |
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| 513 | $options = $attributes['values']; |
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| 514 | unset( $attributes['values'] ); |
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| 515 | |
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| 516 | // create valid XML attributes |
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| 517 | foreach( $attributes as $key => $value ) |
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| 518 | { |
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| 519 | $attributes[$key] = strtr( $value, $this->xmlEntities ); |
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| 520 | } |
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| 521 | |
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| 522 | $tag = $this->createTag( $tagName, "opening", $attributes ); |
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| 523 | foreach( $options as $opt) |
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| 524 | { |
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| 525 | $tag .= $this->createTag( $optName, "empty", $opt ); |
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| 526 | } |
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| 527 | $tag .= $this->createTag( $tagName, "closing" ); |
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| 528 | |
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| 529 | return $tag; |
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| 530 | } |
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| 531 | |
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| 532 | /** |
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| 533 | * convert a value to a human readable version |
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| 534 | * |
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| 535 | * This method should be redefined in the actual element classes. |
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| 536 | * |
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| 537 | * @access public |
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| 538 | * @param mixed value to convert |
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| 539 | * @return string converted value |
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| 540 | */ |
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| 541 | function convertValueToHumanReadable($value) |
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| 542 | { |
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| 543 | $values = $this->getValues(); |
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| 544 | foreach ($values as $optionDef) { |
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| 545 | if ($optionDef['value'] == $value) { |
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| 546 | return $optionDef['label']; |
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| 547 | } |
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| 548 | } |
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| 549 | return $value; |
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| 550 | } |
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| 551 | } |
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| 552 | ?> |
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