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feedizer-php/htdocs/libraries/formsgeneration/form_crud.php

351 lines
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PHP
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2015-11-13 23:51:46 +01:00
<?php
/*
*
* @(#) $Id: form_crud.php,v 1.16 2014/02/07 06:29:57 mlemos Exp $
*
*/
class form_crud_data_source_class
{
var $crud = '';
var $scaffolding_input = '';
var $placeholder_start = '{';
var $placeholder_end = '}';
var $placeholder_section_end = '{/';
var $entry_template = 'the entry template was not defined';
var $entry_template_properties = array(
);
Function Initialize(&$form, $arguments)
{
return('');
}
Function Finalize(&$form)
{
}
Function GetListing(&$form, &$listing)
{
return('data source object does not implement the GetListing function');
}
Function InitializeEntry(&$form, &$entry, &$invalid, &$values)
{
$invalid = 0;
return('');
}
Function GetEntry(&$form, &$entry, &$invalid, &$values)
{
return('data source object does not implement the GetEntry function');
}
Function GetSaveInputs(&$form, &$inputs)
{
return($form->GetInputProperty($this->scaffolding_input, 'EntryFieldNames', $inputs));
}
Function SaveEntry(&$form, $creating, &$entry, &$values)
{
return('data source object does not implement the SaveEntry function');
}
Function ViewEntry(&$form, &$entry, &$values)
{
$output = $this->entry_template;
$s = $this->placeholder_start;
$e = $this->placeholder_end;
$se = $this->placeholder_section_end;
$properties = $this->entry_template_properties;
$tv = count($properties);
for($v = 0, Reset($properties); $v < $tv; Next($properties), ++$v)
{
$p = Key($properties);
if(IsSet($properties[$p]['ConditionalSection']))
$output = preg_replace('/'.str_replace('/', '\\/', preg_quote($s.$p.$e)).'(.*)'.str_replace('/', '\\/', preg_quote($se.$p.$e)).'/', IsSet($values[$p]) ? '\\1' : '', $output);
}
$tv = count($values);
for($v = 0, Reset($values); $v < $tv; Next($values), ++$v)
{
$placeholder = Key($values);
$value = $values[$placeholder];
if(!IsSet($properties[$placeholder]['HTML'])
|| $properties[$placeholder]['HTML'])
$value = nl2br(HtmlSpecialChars($value));
$output = str_replace($s.$placeholder.$e, $value, $output);
}
$entry['EntryOutput'] = $output;
return('');
}
Function DeleteEntry(&$form, &$entry)
{
return('data source object does not implement the DeleteEntry function');
}
};
class form_crud_class extends form_custom_class
{
var $source;
var $scaffolding_input;
var $server_validate=0;
Function SetInputProperties(&$form, $properties, $values)
{
$tp = count($properties);
for($p = 0; $p < $tp; ++$p)
{
$property = $properties[$p];
if(IsSet($values[$property])
&& strlen($error = $form->SetInputProperty($this->scaffolding_input, $property, $values[$property])))
return($error);
}
return('');
}
Function SaveEntry(&$form, $creating, $checkable, &$entry, &$values)
{
if(strlen($error_message = $form->Validate($verify, $this->scaffolding_input.'-submit')) == 0)
{
$tv = count($values);
for(Reset($values), $v = 0; $v < $tv; Next($values), ++$v)
{
$value = Key($values);
if(!IsSet($checkable[$value])
&& strlen($error = $form->GetCheckable($value, $checkable[$value])))
return($error);
$values[$value] = ($checkable[$value] ? $form->GetCheckedState($value) : $form->GetInputValue($value));
}
if(strlen($error = $this->source->SaveEntry($form, $creating, $entry, $values)))
return($error);
$properties = array(
$creating ? 'CreatedMessage' : 'UpdatedMessage',
);
$error = $this->SetInputProperties($form, $properties, $entry);
}
else
$error = '';
return($error);
}
Function AddInput(&$form, $arguments)
{
if(!IsSet($arguments['DataSourceClass']))
return('it was not defined the CRUD data source class');
if(function_exists('class_exists')
&& !class_exists($arguments['DataSourceClass']))
return('it was specified an inexisting CRUD data source class '.$arguments['DataSourceClass']);
$this->source = new $arguments['DataSourceClass'];
if(!IsSet($arguments['ScaffoldingInput']))
return('it was not specified the scaffolding input identifier');
$this->source->scaffolding_input = $this->scaffolding_input = $arguments['ScaffoldingInput'];
return($this->source->Initialize($form, $arguments));
}
Function PostMessage(&$form, $message, &$processed)
{
switch($message['Event'])
{
case 'listing':
$listing = array(
'Page'=>$message['Page'],
);
if(strlen($error = $this->source->GetListing($form, $listing)))
return($error);
$properties = array(
'Rows',
'IDColumn',
'Columns',
'TotalEntries',
'PageEntries',
'Page',
'ListingMessage'
);
if(strlen($error = $this->SetInputProperties($form, $properties, $listing)))
return($error);
break;
case 'viewing':
$invalid = 0;
$entry = $values = array();
if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values))
|| (!$invalid
&& strlen($error = $this->source->ViewEntry($form, $entry, $values))))
return($error);
if($invalid)
{
$message['Cancel'] = 1;
break;
}
$properties = array(
'ViewingMessage',
'EntryOutput'
);
if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
if($invalid)
{
$message['Cancel'] = 1;
break;
}
break;
case 'creating':
$invalid = 0;
$entry = $values = array();
if(strlen($error = $this->source->InitializeEntry($form, $entry, $invalid, $values)))
return($error);
$properties = array(
'CreateCanceledMessage',
'CreateMessage',
);
if(count($entry)
&& strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
if($invalid)
{
$message['Cancel'] = 1;
break;
}
$tv = count($values);
$checkable = array();
for(Reset($values), $v = 0; $v < $tv; Next($values), ++$v)
{
$value = Key($values);
if(strlen($error = $form->GetCheckable($value, $checkable[$value]))
|| strlen($error = ($checkable[$value] ? $form->SetCheckedState($value, $values[$value]) : $form->SetInputValue($value, $values[$value]))))
return($error);
}
if(strlen($error = $form->LoadInputValues(strlen($form->WasSubmitted('')) != 0)))
return($error);
break;
case 'created':
$invalid = 0;
$entry = $values = array();
if(strlen($error = $this->source->InitializeEntry($form, $entry, $invalid, $values)))
return($error);
$properties = array(
'CreateCanceledMessage',
'CreatedMessage',
);
if(count($entry)
&& strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
if($invalid)
{
$message['Cancel'] = 1;
break;
}
if(strlen($error = $this->source->GetSaveInputs($form, $inputs)))
return($error);
$values = array();
$tv = count($inputs);
for($v = 0; $v < $tv; ++$v)
$values[$inputs[$v]] = '';
$checkable = array();
$properties = array(
'CreatedMessage',
);
if(strlen($error = $this->SaveEntry($form, 1, $checkable, $entry, $values))
|| strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
break;
case 'updating':
case 'updated':
$invalid = 0;
$entry = $values = array();
if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values)))
return($error);
$properties = array(
'UpdateCanceledMessage',
'UpdateMessage',
'UpdatedMessage',
);
if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
if($invalid)
{
$message['Cancel'] = 1;
break;
}
$tv = count($values);
$checkable = array();
for(Reset($values), $v = 0; $v < $tv; Next($values), ++$v)
{
$value = Key($values);
if(strlen($error = $form->GetCheckable($value, $checkable[$value]))
|| strlen($error = ($checkable[$value] ? $form->SetCheckedState($value, $values[$value]) : $form->SetInputValue($value, $values[$value]))))
return($error);
}
if(strlen($error = $form->LoadInputValues(strlen($form->WasSubmitted('')) != 0)))
return($error);
if(!strcmp($message['Event'], 'updated'))
{
$properties = array(
'UpdatedMessage',
);
if(strlen($error = $this->SaveEntry($form, 0, $checkable, $entry, $values))
|| strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
}
break;
case 'deleted':
case 'deleting':
$invalid = 0;
$entry = $values = array();
if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values)))
return($error);
$properties = array(
'DeleteMessage',
'DeleteCanceledMessage',
'DeletedMessage',
);
if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
if($invalid)
{
$message['Cancel'] = 1;
break;
}
if(strlen($error_message = $form->Validate($verify, $this->scaffolding_input.'-delete')) == 0
&& !strcmp($message['Event'], 'deleted'))
{
$properties = array(
'DeletedMessage',
);
if(strlen($error = $this->source->DeleteEntry($form, $entry))
|| strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
}
break;
case 'update_canceled':
case 'delete_canceled':
if(strlen($error = $form->GetInputProperty($this->scaffolding_input, 'Entry', $entry['ID']))
|| strlen($error = $this->source->GetEntry($form, $entry, $invalid, $values)))
return($error);
$properties = array(
'DeleteMessage',
'DeleteCanceledMessage',
'DeletedMessage',
);
if(strlen($error = $this->SetInputProperties($form, $properties, $entry)))
return($error);
case 'create_canceled':
break;
default:
return($form->OutputError('form custom input is not yet ready to handle '.$message['Event'].' events', $this->input));
}
return($form->ReplyMessage($message, $processed));
}
};
?>