<?php
/* ######################################################################
IML DEPLOYMENT
class formgen - (copied and improved from simap prototype project)
It generates Form elements. This class does what I need it is not
feature complete.
---------------------------------------------------------------------
2013-11-08 Axel <axel.hahn@iml.unibe.ch>
###################################################################### */
class formgen {
var $aForm = array();
var $sRequired = ' <span title="Eingabe ist erforderlich"><span style="color:#c00;">*</span></span>';
/**
* constructor
* @param array $aNewFormData
* @return boolean
*/
public function __construct($aNewFormData = array()) {
if (count($aNewFormData)){
return $this->setFormarray($aNewFormData);
}
return true;
}
/**
* set a new array
* @param array $aNewFormData
* @return boolean
*/
public function setFormarray($aNewFormData = array()) {
if (!is_array($aNewFormData) || !count($aNewFormData)) {
return false;
}
return $this->aForm = $aNewFormData;
}
/**
* get html code for a completely rendered form
* @param string $sFormId
* @return string html output
*/
public function renderHtml($sFormId) {
$sReturn = false;
if (!array_key_exists($sFormId, $this->aForm)) {
die("ERROR: " . __CLASS__ . ":" . __FUNCTION__ . " - form id " . $sFormId . " does not exist.");
}
// FORM tag
$sReturn.='<form ';
if (array_key_exists("meta", $this->aForm[$sFormId])) {
foreach (array("method", "action", "target", "accept-charset", "class", "id", "name") as $sAttr) {
if (array_key_exists($sAttr, $this->aForm[$sFormId]["meta"])) {
$sReturn.=$sAttr . '="' . $this->aForm[$sFormId]["meta"][$sAttr] . '" ';
}
}
}
$sReturn.='>';
// ... and all its elements
foreach ($this->aForm[$sFormId]["form"] as $elementKey => $elementData) {
$sReturn.=$this->renderHtmlElement($elementKey, $elementData);
}
$sReturn.='</form>';
return $sReturn;
}
/**
* add html attributes if they exist
* @param array $aAttributes list of attributes to search for
* @param array $elementData array of form element
* @return string
*/
private function _addHtmlAtrributes($aAttributes, $elementData) {
$sReturn = false;
foreach ($aAttributes as $sAtrr) {
if (array_key_exists($sAtrr, $elementData) && $elementData[$sAtrr]) {
if ($sReturn)
$sReturn.=' ';
$sReturn.=$sAtrr . '="' . $elementData[$sAtrr] . '"';
}
}
return $sReturn;
}
private function _addLabel($sLabel, $sFor, $sClass = false) {
$sReturn = false;
$sReturn = '<label for="' . $sFor . '"';
if ($sClass)
$sReturn.=' class="' . $sClass . '"';
$sReturn.='>' . $sLabel . '</label>';
$sReturn.="\n";
return $sReturn;
}
private function _checkReqiredKeys($aArray, $aRequiredKeys, $sLabel = false) {
$bReturn = true;
foreach ($aRequiredKeys as $sKey) {
if (!array_key_exists($sKey, $aArray)) {
die("ERROR: $sLabel<br>Missing key \"$sKey\" in the array of a form element:<pre>" . print_r($aArray, true) . "</pre>");
$bReturn = false;
}
}
return $bReturn;
}
/**
* render a single form element
* @param string $sId id of a form element
* @param array $elementData array of form element
* @return string html output
*/
public function renderHtmlElement($sId, $elementData) {
$sReturn = false;
$aAllowedHtmlAttributes = array();
$sDefaultAttributes = "class,onclick,onmouseover,onmouseout,title";
if (!array_key_exists("type", $elementData)) {
print_r($elementData);
die("ERROR: " . __CLASS__ . ":" . __FUNCTION__ . " - key "type" does not exist.");
}
$sFormElement = false;
$sLabelText = '';
$sLabelElement = false;
$sHtmlDefault = '';
$sHtmlTable = '';
if (array_key_exists("label", $elementData)) {
$sLabelText = $elementData["label"];
$sLabelText.=(array_key_exists("required", $elementData) && $elementData["required"]) ? $this->sRequired : '';
}
switch ($elementData["type"]) {
case "button":
$this->_checkReqiredKeys($elementData, array("value"));
$sFormElement.=' <button id="' . $sId . '" class="btn btn-default"';
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes,checked,name"), $elementData);
$sFormElement.='>' . $elementData["value"] . '</button>';
$sFormElement.="\n";
$sHtmlDefault = $sFormElement;
break;
case "checkbox":
$this->_checkReqiredKeys($elementData, array("name"));
foreach ($elementData["options"] as $idOption => $aOptionData) {
$sFormElement.="\n".'<div class="checkbox">';
$s = preg_replace('/\W/iu', '', $sId . $idOption);
$sOptionId = preg_replace('/[äöüß]/i', '', $s);
$sFormElement.=' <input type="checkbox" id="' . $sOptionId . '" value="' . $idOption . '" ';
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes,checked"), $aOptionData);
$sFormElement.=' name="' . $elementData["name"] . '[]"';
$sFormElement.='/><label for="' . $sOptionId . '">' . $aOptionData["label"] . '</label></div>';
}
$sFormElement.="\n";
// $sLabelElement.='<span class="help-block">' . $sLabelText . '</span>';
$sLabelElement.='<div class="col-sm-2">' . $sLabelText . '</div>';
$sLabelElement.="\n";
// $sHtmlDefault = $sLabelElement . $sFormElement;
$sHtmlDefault = $sLabelElement . '<div class="col-sm-10">' . "\n" . $sFormElement . '</div>' . "\n";
$sHtmlTable = '<td>' . $sLabelText . '</td><td>' . $sFormElement . '</td>';
break;
case "hidden":
$this->_checkReqiredKeys($elementData, array("value"));
$sFormElement.=' <input type="hidden" id="' . $sId . '" ';
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "name,value"), $elementData);
$sFormElement.=" />";
$sFormElement.="\n";
$sHtmlDefault = $sFormElement . "\n";
break;
case "markup":
if (array_key_exists("value", $elementData))
$sHtmlDefault = $elementData["value"] . "\n";
break;
case "radio":
$this->_checkReqiredKeys($elementData, array("name"));
foreach ($elementData["options"] as $idOption => $aOptionData) {
$sFormElement.="\n".'<div class="radio">';
$s = preg_replace('/\W/iu', '', $sId . $idOption);
$sOptionId = preg_replace('/[äöüß]/i', '', $s);
$sFormElement.=' <input type="radio" id="' . $sOptionId . '" value="' . $idOption . '" ';
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes,checked"), $aOptionData);
$sFormElement.=" " . $this->_addHtmlAtrributes(explode(",", "name"), $elementData);
$sFormElement.='/><label for="' . $sOptionId . '">' . $aOptionData["label"] . '</label></div>';
}
$sFormElement.="\n";
if ($sLabelText) {
// $sLabelElement.='<span class="help-block">' . $sLabelText . '</span>' . "\n";
$sLabelElement = $this->_addLabel($sLabelText, $sId, "col-sm-2");
}
// $sHtmlDefault = $sLabelElement . $sFormElement;
$sHtmlDefault = $sLabelElement . '<div class="col-sm-10">' . "\n" . $sFormElement . '</div>' . "\n";
$sHtmlTable = '<td>' . $sLabelText . '</td><td>' . $sFormElement . '</td>';
// $sHtmlDefault = $sLabelElement . $sFormElement;
// $sReturn.=$this->_addLabel($sFormElement,$sId,"checkbox");
break;
case "select":
// HINWEIS optgroups werden nicht unterstuezt - nur einfache Listen
$this->_checkReqiredKeys($elementData, array("name"));
$sDivClass=(array_key_exists("inline", $elementData) && $elementData["inline"])?"form-group":"col-sm-10";
$sFormElement.='<div class="'.$sDivClass.'"><select id="' . $sId . '" class="form-control" ';
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes,name,onchange"), $elementData);
$sFormElement.=">\n";
foreach ($elementData["options"] as $idOption => $aOptionData) {
$s = preg_replace('/\W/iu', '', $sId . $idOption);
$sOptionId = preg_replace('/[äöüß]/i', '', $s);
$sFormElement.=' <option value="' . $idOption . '" ';
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes,selected"), $aOptionData);
$sFormElement.='>' . $aOptionData["label"] . '</option>' . "\n";
}
$sFormElement.="</select></div>\n";
if ($sLabelText) {
// $sLabelElement.='<span class="help-block">' . $sLabelText . '</span>' . "\n";
$sLabelClass=(array_key_exists("inline", $elementData) && $elementData["inline"])?"":"col-sm-2";
$sLabelElement = $this->_addLabel($sLabelText, $sId, $sLabelClass);
}
$sHtmlTable = '<td>' . $sLabelText . '</td><td>' . $sFormElement . '</td>';
$sHtmlDefault = $sLabelElement . $sFormElement;
// $sReturn.=$this->_addLabel($sFormElement,$sId,"checkbox");
break;
case "submit":
$this->_checkReqiredKeys($elementData, array("value"));
$sClass="btn btn-primary ";
if (array_key_exists("class", $elementData)){
$sClass.=$elementData["class"];
}
$elementData["class"]=$sClass;
$sFormElement.=' <button id="' . $sId . '" type="submit" ';
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes"), $elementData);
$sFormElement.='>' . $elementData["value"] . '</button>';
$sFormElement.="\n";
$sHtmlDefault = $sFormElement;
break;
case "text":
case "password":
$this->_checkReqiredKeys($elementData, array("name"));
$sFormElement.=' <input type="'.$elementData["type"].'" id="' . $sId . '" class="form-control col-sm-10" ';
$aAllowedHtmlAttributes["text"] = explode(",", "");
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes,name,autofocus,list,disabled,onkeyup,onkeydown,onchange,pattern,placeholder,required,size,value"), $elementData);
// $sFormElement.=$this->_addHtmlAtrributes(array("name", "value", "size", "placeholder", "required"), $elementData);
// IE: Return abfangen lassen
// $sFormElement.=' onkeypress="return checkKey(event);"';
$sFormElement.=' />';
$sFormElement.="\n";
if (array_key_exists("inline", $elementData) && $elementData["inline"]){
$sLabelElement = $this->_addLabel($sLabelText, $sId, "col-sm-2");
// $sHtmlDefault = $sLabelElement . "\n" . $sFormElement . "\n";
$sHtmlDefault = $sLabelElement . '<div class="col-sm-2">' . "\n" . $sFormElement . '</div>' . "\n";
} else {
$sLabelElement = $this->_addLabel($sLabelText, $sId, "col-sm-2");
// $sHtmlDefault = $sLabelElement . '<div class="controls">' . "\n" . $sFormElement . '</div>' . "\n";
$sHtmlDefault = $sLabelElement . '<div class="col-sm-10">' . "\n" . $sFormElement . '</div>' . "\n";
}
$sHtmlTable = '<td>' . $sLabelText . '</td><td>' . $sFormElement . '</td>';
break;
case "textarea":
$this->_checkReqiredKeys($elementData, array("name"));
$sFormElement.=' <textarea id="' . $sId . '" ';
$aAllowedHtmlAttributes["text"] = explode(",", "");
$sFormElement.=$this->_addHtmlAtrributes(explode(",", "$sDefaultAttributes,name,onkeyup,onkeydown,onchange,placeholder,required,cols,rows"), $elementData);
// $sFormElement.=$this->_addHtmlAtrributes(array("name", "value", "size", "placeholder", "required"), $elementData);
$sFormElement.='></textarea>';
$sFormElement.="\n";
$sLabelElement = $this->_addLabel($sLabelText, $sId, "control-label col-sm-2");
// $sHtmlDefault = $sLabelElement . '<div class="controls">' . "\n" . $sFormElement . '</div>' . "\n";
$sHtmlDefault = $sLabelElement . '<div class=" col-sm-10">' . "\n" . $sFormElement . '</div>' . "\n";
$sHtmlTable = '<td>' . $sLabelElement . '</td><td>' . $sFormElement . '</td>';
break;
default:
die("ERROR: " . __CLASS__ . ":" . __FUNCTION__ . " - formelement type " . $elementData["type"] . " ist not supported (yet).");
break;
}
// Default or table mode?
if (array_key_exists("mode", $elementData) && $elementData["mode"] == 'table' && $sHtmlTable) {
$sHtmlDefault = $sHtmlTable;
} else {
if ($elementData["type"] != "button" && $elementData["type"] != "fieldset" && $elementData["type"] != "markup") {
if (!array_key_exists("inline", $elementData) || !$elementData["inline"]){
// $sHtmlDefault = "<fieldset>" . $sHtmlDefault . "</fieldset>\n";
$sHtmlDefault = '<div class="form-group">' . $sHtmlDefault . '</div>'."\n";
}
}
}
$sReturn.="<!-- " . $elementData["type"] . " -->\n";
$sReturn.=$sHtmlDefault . "\n";
return $sReturn;
}
}
?>