Peter M. Groen / knowledgetree

{literal}
<style>

.active { 
	background: transparent; 
}

.inactive {
	background: #ccc;
}

.inactive .fieldselection {
	display: none;
}

.currentmaster .editbutton { display: none; }
.savebutton { display: none; }
.currentmaster .savebutton { display: block; }
.active .activity_message { display: none; }
.inactive .savebutton { display: none; }

</style>

<!-- include the mochikit js -->
<script language="javascript" src="/thirdpartyjs/MochiKit/Base.js"> </script>
<script language="javascript" src="/thirdpartyjs/MochiKit/Iter.js"> </script>
<script language="javascript" src="/thirdpartyjs/MochiKit/Async.js"> </script>
<script language="javascript" src="/thirdpartyjs/MochiKit/DOM.js"> </script>




<!-- custom JS -->

<script language="javascript">

function str_startswith(source, contents) {
     var clen = contents.length;
	 if (source.length < clen) { 
	     return false;
     } else {
	     var matcher = source.substr(0, clen);
		 if (matcher == contents) { 
		     return true;
		 } else {
		     return false;
		 }
	 }
	 
}

/*
 *  Basic workflow on this page is incredibly simple.
 *  At each stage there is:
 *    1. an "active" set of fields
 *    2. an "inactive" set of fields.
 * 
 *  Essentially, the backend needs to provide a limited set
 *  of operations:
 *    1. Save a selection (active sets)
 *    2. Edit a new "master column".
 */

/*
 * function saveSimpleEditSelection();
 *
 * 1. find all "active" columns, and which field is "master".
 * 2. create the "save" request (question:  how do we build a POST ... the GET is now too long, since IE dies past 1024 chars (or is it 256?)
 * 3. submit.
 */ 
function saveSimpleEditSelection (save_button) {
    var formKeys = Array();
    var formValues = Array();
	// these need to be "pushed" simultanously.
	var activeColumns = getElementsByTagAndClassName("td","active");
	
	/* the submitted form has a simple set of variables.
	 *
     * fields[][] - two-dimensional array:
	 * [field_id] => [array(active values)].
     * fieldset_id - integer fieldset id.
	 *    
	 * master_field - integer master-field id.
     */
	 
	formKeys.push('action');
	formValues.push('saveSimpleEdit'); 
	 for (index in activeColumns) {
	     var t = DIV(null);
		 var obj = activeColumns[index];
		 if (typeof(obj) == typeof(t)) {
		     var oclass = obj.getAttribute('class');
			 var oid = obj.getAttribute('id');
			 
		     // we can extract the field name from this quite simply
			 // by removing 
			 var cs_len = 'contain_select_'.length;
			 if (str_startswith(oid, 'contain_select_')) {
				var str_end = oid.substr(cs_len, oid.length);
				formKeys.push('fields[]');
				formValues.push(str_end);

				
				// FIXME handle Trees.
				
				// since we are active, we can also get the select.
				var selection = getElementsByTagAndClassName("select","fieldselection", obj);
				// MUST be only 1.
				if (selection.length != 0) {
				    var selObj = selection[0];
					var key = 'fields['+str_end+'][]';
					// there can be multiple matches here.
					for (selindex in selObj.options) {
					    var subobj = selObj.options[selindex];
						if (typeof(subobj) == typeof(t)) {
						    if (subobj.selected) {
						        formKeys.push(key);
								formValues.push(subobj.value);
							}
						}
					}
				}
		     // handle the case where this is a buttongroup - find the "master".
			 } else {
			    if (hasElementClass(obj, 'currentmaster')) {
				    var cs_len = 'contain_buttons_'.length;
				    var str_end = oid.substr(cs_len, oid.length);
					formKeys.push('master_field');
					formValues.push(str_end);
				}
			 }
		 }
	 }
	 // finally.
	 var POSTval = queryString(formKeys, formValues);
	 
	 var targeturl = 'manageConditionals.php';
	 var req = getXMLHttpRequest();
	 req.open("POST", targeturl, true);
	 req.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	 var deferred = sendXMLHttpRequest(req, POSTval);
	 deferred.addCallback(partial(do_saveSimpleRelation, save_button));
	 deferred.addErrback(partial(do_handleAjaxError, save_button,
'save'));
	 // indicate to the user that we are saved.
	 save_button.disabled = true;
	 save_button.value = "saving...";
}

// intentionally stubbed - we don't actually act here.
// at most we need a "kill saving".
function do_saveSimpleRelation(button, req) {
	//alert('saved '+req.responseText);
	button.disabled = false;
	button.value = "save";
}

function do_handleAjaxError(button, button_val, err) {
	alert('failed while trying to '+button_val);
	button.disabled = false;
	button.value = button_val;
}

function getSubSelect(obj) {
   return getElementsByTagAndClassName('select','fieldselection', obj);
}
/* 
 * function editNewSimpleSelection(int field_id) 
 *
 * 1. initiate an XMLHTTPRequest to get the "controlled fields".
 * 2. change all to be either "active" or "inactive"
 * 3. add "save" to the appropriate column.
 *
 */
function editNewSimpleSelection(field_id) {
   var active_fields = Array();
   // DEBUG CODE
   if (field_id == '8') {
       active_fields.push('8');
	   active_fields.push('9');
   } else {
       active_fields.push('5');
	   active_fields.push('8');	   
   }
   
   var edit_columns = getElementsByTagAndClassName('td','editable');
   var button_columns = getElementsByTagAndClassName('td','buttons');
   
   for (var i=0; i<edit_columns.length; i++) {
      var obj = edit_columns[i];
	  var cs_len = 'contain_select_'.length; // horrid.
	  var col_num = obj.id.substr(cs_len, obj.id.length);
	  
	  setElementClass(obj, 'inactive editable');
	  // sigh.  we want to know if this is "active" ...
	  for (var j=0; j<active_fields.length; j++)
	  {
          if (col_num == active_fields[j]) {
		      setElementClass(obj, 'active editable');
			  // urgh.  we now need to set the master column's select to not be multiple.
			  var slist = getSubSelect(obj);
			  for (var k=0; k<slist.length; k++) {
				 if (col_num == field_id) {
				     slist[k].multiple = false;
				 } else {
				    slist[k].multiple = true;
				 }
			  }
		  } 
	  }
   }
   
   for (var i=0; i<button_columns.length; i++) {
      var obj = button_columns[i];
	  var cs_len = 'contain_buttons_'.length; // horrid.
	  var col_num = obj.id.substr(cs_len, obj.id.length);
	  
	  setElementClass(obj, 'inactive buttons');
	  // sigh.  we want to know if this is "active" ...
	  for (var j=0; j<active_fields.length; j++)
	  {
          if (col_num == active_fields[j]) {
		      if (col_num == field_id) {
		          setElementClass(obj, 'active buttons currentmaster');
		      } else {
			     setElementClass(obj, 'active buttons');
			  }
		  } 
	  }
   }
}

function getMasterField() {
    var cols = getElementsByTagAndClassName('td','buttons');
	var mf = null;
	for (var i=0; i<cols.length; i++) {
	    var c = cols[i];
		if (hasElementClass(c, 'currentmaster')) {
		    mf = c.id.substr('contain_buttons_'.length,c.id.length);
		}
	}
	return mf;
}

/* function getExistingFieldsForVal
 *
 * FIXME we need to add XML function here.
 */
function getExistingFieldsForVal(field_id) {
    // DEBUG
	if ((getMasterField() == field_id) && (field_id == "1")) {
        alert('updating selections');
	    var preoptions = Array();
	
	    // 1 get the value for field field_id.
	    var f = getElement('sel_'+field_id);
	    var active_val = f.value; // this is the active value of the field.
	
	    // 2 fetch the option-array.  this should be a list of "<opt num="3" active="{1,0}" />
		// DEBUG HACK.
		availcols = Array();
		availcols.push("2");
		availcols.push("3");
		preoptions["2"] = Array();
		preoptions["3"] = Array();
		preoptions["2"]["4"] = true;
		preoptions["2"]["5"] = true;		
		preoptions["2"]["6"] = false;
		preoptions["3"]["7"] = true;		
		preoptions["3"]["8"] = false;
		preoptions["3"]["9"] = true;		
		
		// 3 get and update from the preoption array
		//     to do this, grab the "sel" and walk its options.
		for (var i=0; i<availcols.length; i++) {
		   var colid = availcols[i];
		   var selid = 'sel_'+colid;
		   var selection = getElement(selid);
		   for (var k=0; k<selection.options.length; k++) {
			   selection.options[k].selected = preoptions[colid][selection.options[k].value];
		   }
		}
	}
	
}

</script>

{/literal}


<h2>Editing Fieldset Rules (Simple)</h2>

<!-- by default, we start by editing the _first_ column.
  after that, we need to update / get the "active columns" ids. -->

<table>
	<tr>
{foreach from=$aFields item=oField}
		<th><span title="Field {$oField->getId()}">{$oField->getName()}</span></th>
{/foreach}
	</tr>
	<tr valign="top">

{foreach from=$aFields item=oField}
{assign var=sMultiple value=""}
{assign var="sActive" value="inactive"}
{if $oField->getParentFieldId()}
  {assign var=sMultiple value='multiple="true"'}
  {if $oField->getParentFieldId() == $iMasterFieldId}
    {assign var="sActive" value="active"}
  {/if}
{else}
  {assign var="sActive" value="active"}
{/if}
		<td class="{$sActive} editable" id="contain_select_{$oField->getId()}">
 			<p class="activity_message">This field is not controlled by the currently active group.</p>
			<select name="column_{$oField->getId()}" {$sMultiple} class="fieldselection" id="sel_{$oField->getId()}" onchange="getExistingFieldsForVal({$oField->getId()});">

  {foreach from=$oField->getValues() item=oMetaData}
				<option value="{$oMetaData->getId()}">{$oMetaData->getName()|escape}</option>
  {/foreach}
			</select>
		</td>
{/foreach}
        </tr>	
	<tr>

{foreach from=$aFields item=oField}

{assign var="sActive" value="inactive"}
{if $oField->getParentFieldId()}
  {assign var=sMultiple value='multiple="true"'}
  {if $oField->getParentFieldId() == $iMasterFieldId}
    {assign var="sActive" value="active"}
  {/if}
{else}
  {assign var="sActive" value="active currentmaster"}
{/if}

<td class="{$sActive} buttons" id="contain_buttons_{$oField->getId()}">
  {if $oField->hasChildren()}
        <input type="button" onclick="editNewSimpleSelection({$oField->getId()});" value="Edit" class="editbutton" />
		
        <input type="button" onclick="saveSimpleEditSelection(this);" value="Save" class="savebutton" />
  {/if}
</td>
{/foreach}
	</tr>
</table>