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htdocs/libraries/formsgeneration
351
htdocs/libraries/formsgeneration/form_crud.php
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351
htdocs/libraries/formsgeneration/form_crud.php
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<?php
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/*
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*
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* @(#) $Id: form_crud.php,v 1.16 2014/02/07 06:29:57 mlemos Exp $
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*
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*/
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class form_crud_data_source_class
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{
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var $crud = '';
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var $scaffolding_input = '';
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var $placeholder_start = '{';
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var $placeholder_end = '}';
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var $placeholder_section_end = '{/';
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var $entry_template = 'the entry template was not defined';
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var $entry_template_properties = array(
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);
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Function Initialize(&$form, $arguments)
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{
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return('');
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}
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Function Finalize(&$form)
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{
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}
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Function GetListing(&$form, &$listing)
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{
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return('data source object does not implement the GetListing function');
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}
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Function InitializeEntry(&$form, &$entry, &$invalid, &$values)
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{
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$invalid = 0;
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return('');
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}
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Function GetEntry(&$form, &$entry, &$invalid, &$values)
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{
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return('data source object does not implement the GetEntry function');
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}
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Function GetSaveInputs(&$form, &$inputs)
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{
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return($form->GetInputProperty($this->scaffolding_input, 'EntryFieldNames', $inputs));
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}
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Function SaveEntry(&$form, $creating, &$entry, &$values)
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{
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return('data source object does not implement the SaveEntry function');
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}
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Function ViewEntry(&$form, &$entry, &$values)
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{
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$output = $this->entry_template;
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$s = $this->placeholder_start;
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$e = $this->placeholder_end;
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$se = $this->placeholder_section_end;
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$properties = $this->entry_template_properties;
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$tv = count($properties);
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for($v = 0, Reset($properties); $v < $tv; Next($properties), ++$v)
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{
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$p = Key($properties);
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if(IsSet($properties[$p]['ConditionalSection']))
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$output = preg_replace('/'.str_replace('/', '\\/', preg_quote($s.$p.$e)).'(.*)'.str_replace('/', '\\/', preg_quote($se.$p.$e)).'/', IsSet($values[$p]) ? '\\1' : '', $output);
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}
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$tv = count($values);
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for($v = 0, Reset($values); $v < $tv; Next($values), ++$v)
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{
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$placeholder = Key($values);
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$value = $values[$placeholder];
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if(!IsSet($properties[$placeholder]['HTML'])
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|| $properties[$placeholder]['HTML'])
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$value = nl2br(HtmlSpecialChars($value));
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$output = str_replace($s.$placeholder.$e, $value, $output);
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}
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$entry['EntryOutput'] = $output;
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return('');
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}
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Function DeleteEntry(&$form, &$entry)
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{
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return('data source object does not implement the DeleteEntry function');
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}
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};
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class form_crud_class extends form_custom_class
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{
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var $source;
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var $scaffolding_input;
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var $server_validate=0;
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Function SetInputProperties(&$form, $properties, $values)
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{
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$tp = count($properties);
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for($p = 0; $p < $tp; ++$p)
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{
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$property = $properties[$p];
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if(IsSet($values[$property])
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&& strlen($error = $form->SetInputProperty($this->scaffolding_input, $property, $values[$property])))
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return($error);
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}
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return('');
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}
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Function SaveEntry(&$form, $creating, $checkable, &$entry, &$values)
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{
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if(strlen($error_message = $form->Validate($verify, $this->scaffolding_input.'-submit')) == 0)
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{
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$tv = count($values);
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for(Reset($values), $v = 0; $v < $tv; Next($values), ++$v)
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{
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$value = Key($values);
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if(!IsSet($checkable[$value])
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&& strlen($error = $form->GetCheckable($value, $checkable[$value])))
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return($error);
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$values[$value] = ($checkable[$value] ? $form->GetCheckedState($value) : $form->GetInputValue($value));
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}
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if(strlen($error = $this->source->SaveEntry($form, $creating, $entry, $values)))
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return($error);
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$properties = array(
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$creating ? 'CreatedMessage' : 'UpdatedMessage',
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);
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$error = $this->SetInputProperties($form, $properties, $entry);
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}
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else
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$error = '';
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return($error);
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}
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Function AddInput(&$form, $arguments)
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{
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if(!IsSet($arguments['DataSourceClass']))
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return('it was not defined the CRUD data source class');
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if(function_exists('class_exists')
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&& !class_exists($arguments['DataSourceClass']))
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return('it was specified an inexisting CRUD data source class '.$arguments['DataSourceClass']);
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$this->source = new $arguments['DataSourceClass'];
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if(!IsSet($arguments['ScaffoldingInput']))
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return('it was not specified the scaffolding input identifier');
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$this->source->scaffolding_input = $this->scaffolding_input = $arguments['ScaffoldingInput'];
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return($this->source->Initialize($form, $arguments));
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}
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Function PostMessage(&$form, $message, &$processed)
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{
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switch($message['Event'])
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{
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case 'listing':
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$listing = array(
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'Page'=>$message['Page'],
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);
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if(strlen($error = $this->source->GetListing($form, $listing)))
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return($error);
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$properties = array(
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'Rows',
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'IDColumn',
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'Columns',
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'TotalEntries',
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'PageEntries',
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'Page',
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'ListingMessage'
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);
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if(strlen($error = $this->SetInputProperties($form, $properties, $listing)))
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return($error);
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break;
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case 'viewing':
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$invalid = 0;
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$entry = $values = array();
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if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
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|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values))
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|| (!$invalid
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&& strlen($error = $this->source->ViewEntry($form, $entry, $values))))
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return($error);
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if($invalid)
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{
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$message['Cancel'] = 1;
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break;
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}
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$properties = array(
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'ViewingMessage',
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'EntryOutput'
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);
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if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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if($invalid)
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{
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$message['Cancel'] = 1;
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break;
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}
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break;
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case 'creating':
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$invalid = 0;
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$entry = $values = array();
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if(strlen($error = $this->source->InitializeEntry($form, $entry, $invalid, $values)))
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return($error);
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$properties = array(
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'CreateCanceledMessage',
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'CreateMessage',
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);
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if(count($entry)
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&& strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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if($invalid)
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{
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$message['Cancel'] = 1;
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break;
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}
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$tv = count($values);
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$checkable = array();
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for(Reset($values), $v = 0; $v < $tv; Next($values), ++$v)
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{
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$value = Key($values);
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if(strlen($error = $form->GetCheckable($value, $checkable[$value]))
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|| strlen($error = ($checkable[$value] ? $form->SetCheckedState($value, $values[$value]) : $form->SetInputValue($value, $values[$value]))))
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return($error);
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}
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if(strlen($error = $form->LoadInputValues(strlen($form->WasSubmitted('')) != 0)))
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return($error);
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break;
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case 'created':
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$invalid = 0;
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$entry = $values = array();
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if(strlen($error = $this->source->InitializeEntry($form, $entry, $invalid, $values)))
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return($error);
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$properties = array(
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'CreateCanceledMessage',
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'CreatedMessage',
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);
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if(count($entry)
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&& strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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if($invalid)
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{
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$message['Cancel'] = 1;
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break;
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}
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if(strlen($error = $this->source->GetSaveInputs($form, $inputs)))
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return($error);
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$values = array();
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$tv = count($inputs);
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for($v = 0; $v < $tv; ++$v)
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$values[$inputs[$v]] = '';
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$checkable = array();
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$properties = array(
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'CreatedMessage',
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);
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if(strlen($error = $this->SaveEntry($form, 1, $checkable, $entry, $values))
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|| strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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break;
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case 'updating':
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case 'updated':
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$invalid = 0;
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$entry = $values = array();
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if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
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|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values)))
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return($error);
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$properties = array(
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'UpdateCanceledMessage',
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'UpdateMessage',
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'UpdatedMessage',
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);
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if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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if($invalid)
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{
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$message['Cancel'] = 1;
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break;
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}
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$tv = count($values);
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$checkable = array();
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for(Reset($values), $v = 0; $v < $tv; Next($values), ++$v)
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{
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$value = Key($values);
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if(strlen($error = $form->GetCheckable($value, $checkable[$value]))
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|| strlen($error = ($checkable[$value] ? $form->SetCheckedState($value, $values[$value]) : $form->SetInputValue($value, $values[$value]))))
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return($error);
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}
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if(strlen($error = $form->LoadInputValues(strlen($form->WasSubmitted('')) != 0)))
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return($error);
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if(!strcmp($message['Event'], 'updated'))
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{
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$properties = array(
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'UpdatedMessage',
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);
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if(strlen($error = $this->SaveEntry($form, 0, $checkable, $entry, $values))
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|| strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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}
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break;
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case 'deleted':
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case 'deleting':
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$invalid = 0;
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$entry = $values = array();
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if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
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|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values)))
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return($error);
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$properties = array(
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'DeleteMessage',
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'DeleteCanceledMessage',
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'DeletedMessage',
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);
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if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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if($invalid)
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{
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$message['Cancel'] = 1;
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break;
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}
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if(strlen($error_message = $form->Validate($verify, $this->scaffolding_input.'-delete')) == 0
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&& !strcmp($message['Event'], 'deleted'))
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{
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$properties = array(
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'DeletedMessage',
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);
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if(strlen($error = $this->source->DeleteEntry($form, $entry))
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|| strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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}
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break;
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case 'update_canceled':
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case 'delete_canceled':
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if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
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|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values)))
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return($error);
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$properties = array(
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'DeleteMessage',
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'DeleteCanceledMessage',
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'DeletedMessage',
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);
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if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
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return($error);
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case 'create_canceled':
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break;
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default:
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return($form->OutputError('form custom input is not yet ready to handle '.$message['Event'].' events', $this->input));
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}
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return($form->ReplyMessage($message, $processed));
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}
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};
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?>
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