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  1: <?php
  2: /**
  3:  * This file contains the frontend list class.
  4:  *
  5:  * @package          Core
  6:  * @subpackage       Backend
  7:  * @version          SVN Revision $Rev:$
  8:  *
  9:  * @author           Timo Hummel
 10:  * @copyright        four for business AG <www.4fb.de>
 11:  * @license          http://www.contenido.org/license/LIZENZ.txt
 12:  * @link             http://www.4fb.de
 13:  * @link             http://www.contenido.org
 14:  */
 15: 
 16: 
 17: defined('CON_FRAMEWORK') || die('Illegal call: Missing framework initialization - request aborted.');
 18: 
 19: /**
 20:  * Class FrontendList
 21:  * Class for scrollable frontend lists
 22:  *
 23:  * @package          Core
 24:  * @subpackage       Backend
 25:  */
 26: class FrontendList {
 27: 
 28:     /**
 29:      * Wrap for a single item
 30:      *
 31:      * @var string
 32:      */
 33:     var $itemwrap;
 34: 
 35:     /**
 36:      * Wrap for table start
 37:      *
 38:      * @var string
 39:      */
 40:     var $startwrap;
 41: 
 42:     /**
 43:      * Wrap for table end
 44:      *
 45:      * @var string
 46:      */
 47:     var $endwrap;
 48: 
 49:     /**
 50:      * Data container
 51:      *
 52:      * @var array
 53:      */
 54:     var $data = Array();
 55: 
 56:     /**
 57:      * Number of records displayed per page
 58:      *
 59:      * @var string
 60:      */
 61:     var $resultsPerPage;
 62: 
 63:     /**
 64:      * Start page
 65:      *
 66:      * @var string
 67:      */
 68:     var $listStart;
 69: 
 70:     /**
 71:      * Creates a new FrontendList object.
 72:      *
 73:      * The placeholder for item wraps are the same as for
 74:      * sprintf. See the documentation for sprintf.
 75:      *
 76:      * Caution: Make sure that percentage signs are written as %%.
 77:      *
 78:      * @param $startwrap Wrap for the list start
 79:      * @param $endwrap Wrap for the list end
 80:      * @param $itemwrap Wrap for a single item
 81:      */
 82:     function FrontendList($startwrap, $endwrap, $itemwrap) {
 83:         $this->resultsPerPage = 0;
 84:         $this->listStart = 1;
 85: 
 86:         $this->itemwrap = $itemwrap;
 87:         $this->startwrap = $startwrap;
 88:         $this->endwrap = $endwrap;
 89:     }
 90: 
 91:     /**
 92:      * Sets data.
 93:      *
 94:      * Note: This function eats as many parameters as you specify.
 95:      *
 96:      * Example:
 97:      * $obj->setData(0, "foo", "bar");
 98:      *
 99:      * Make sure that the amount of parameters stays the same for all
100:      * setData calls in a single object.
101:      *
102:      * @param $index int Numeric index
103:      * @param ... Additional parameters (data)
104:      */
105:     function setData($index) {
106:         $numargs = func_num_args();
107: 
108:         for ($i = 1; $i < $numargs; $i++) {
109:             $this->data[$index][$i] = func_get_arg($i);
110:         }
111:     }
112: 
113:     /**
114:      * Sets the number of records per page.
115:      *
116:      * @param $numresults int Amount of records per page
117:      */
118:     function setResultsPerPage($numresults) {
119:         $this->resultsPerPage = $numresults;
120:     }
121: 
122:     /**
123:      * Sets the starting page number.
124:      *
125:      * @param $startpage int Page number on which the list display starts
126:      */
127:     function setListStart($startpage) {
128:         $this->listStart = $startpage;
129:     }
130: 
131:     /**
132:      * Returns the current page.
133:      *
134:      * @return int Current page number
135:      */
136:     function getCurrentPage() {
137:         if ($this->resultsPerPage == 0) {
138:             return 1;
139:         }
140: 
141:         return ($this->listStart);
142:     }
143: 
144:     /**
145:      * Returns the amount of pages.
146:      *
147:      * @return int Amount of pages
148:      */
149:     function getNumPages() {
150:         return (ceil(count($this->data) / $this->resultsPerPage));
151:     }
152: 
153:     /**
154:      * Sorts the list by a given field and a given order.
155:      *
156:      * @param $field Field index
157:      * @param $order Sort order (see php's sort documentation)
158:      */
159:     function sort($field, $order) {
160:         $this->data = cArray::csort($this->data, "$field", $order);
161:     }
162: 
163:     /**
164:      * Field converting facility.
165:      * Needs to be overridden in the child class to work properbly.
166:      *
167:      * @param $field Field index
168:      * @param $value Field value
169:      */
170:     function convert($field, $value) {
171:         return $value;
172:     }
173: 
174:     /**
175:      * Outputs or optionally returns
176:      *
177:      * @param $return If true, returns the list
178:      */
179:     function output($return = false) {
180:         $output = $this->startwrap;
181: 
182:         $currentpage = $this->getCurrentPage();
183: 
184:         $itemstart = (($currentpage - 1) * $this->resultsPerPage) + 1;
185: 
186:         if ($this->resultsPerPage == 0) {
187:             $itemend = count($this->data) - ($itemstart - 1);
188:         } else {
189:             $itemend = $currentpage * $this->resultsPerPage;
190:         }
191: 
192:         if ($itemend > count($this->data)) {
193:             $itemend = count($this->data);
194:         }
195: 
196:         for ($i = $itemstart; $i < $itemend + 1; $i++) {
197:             if (is_array($this->data[$i - 1])) {
198:                 $items = "";
199:                 foreach ($this->data[$i - 1] as $key => $value) {
200:                     $items .= ", '" . addslashes($this->convert($key, $value)) . "'";
201:                 }
202: 
203:                 $execute = '$output .= sprintf($this->itemwrap ' . $items . ');';
204:                 eval($execute);
205:             }
206:         }
207: 
208:         $output .= $this->endwrap;
209: 
210:         $output = stripslashes($output);
211: 
212:         if ($return == true) {
213:             return $output;
214:         } else {
215:             echo $output;
216:         }
217:     }
218: 
219: }
220: 
CMS CONTENIDO 4.9.7 API documentation generated by ApiGen