rhymix/classes/xml/xmlquery/queryargument/QueryArgument.class.php
2011-10-13 14:53:30 +00:00

104 lines
No EOL
4.2 KiB
PHP

<?php
class QueryArgument {
var $argument_name;
var $variable_name;
var $argument_validator;
var $column_name;
var $operation;
var $ignore_value;
function QueryArgument($tag, $ignore_value = false){
static $number_of_arguments = 0;
$this->argument_name = $tag->attrs->var;
if(!$this->argument_name) $this->argument_name = str_replace('.', '_',$tag->attrs->name);
if(!$this->argument_name) $this->argument_name = str_replace('.', '_',$tag->attrs->column);
$this->variable_name = $this->argument_name;
$number_of_arguments++;
$this->argument_name .= $number_of_arguments;
$name = $tag->attrs->name;
if(!$name) $name = $tag->attrs->column;
if(strpos($name, '.') === false) $this->column_name = $name;
else {
list($prefix, $name) = explode('.', $name);
$this->column_name = $name;
}
if($tag->attrs->operation) $this->operation = $tag->attrs->operation;
$this->argument_validator = new QueryArgumentValidator($tag, $this);
$this->ignore_value = $ignore_value;
}
function getArgumentName(){
return $this->argument_name;
}
function getColumnName(){
return $this->column_name;
}
function getValidatorString(){
return $this->argument_validator->toString();
}
function isConditionArgument(){
if($this->operation) return true;
return false;
}
function toString(){
if($this->isConditionArgument()){
// Instantiation
$arg = sprintf("\n$%s_argument = new ConditionArgument('%s', %s, '%s');\n"
, $this->argument_name
, $this->variable_name
, '$args->'.$this->variable_name
, $this->operation
);
// Call methods to validate argument and ensure default value
$arg .= $this->argument_validator->toString();
// Prepare condition string
$arg .= sprintf("$%s_argument->createConditionValue();\n"
, $this->argument_name
);
// Check that argument passed validation, else return
$arg .= sprintf("if(!$%s_argument->isValid()) return $%s_argument->getErrorMessage();\n"
, $this->argument_name
, $this->argument_name
);
}
else {
$arg = sprintf("\n$%s_argument = new Argument('%s', %s);\n"
, $this->argument_name
, $this->variable_name
, $this->ignore_value ? 'null' : '$args->'.$this->variable_name);
$arg .= $this->argument_validator->toString();
$arg .= sprintf("if(!$%s_argument->isValid()) return $%s_argument->getErrorMessage();\n"
, $this->argument_name
, $this->argument_name
);
}
// If the argument is null, skip it
if($this->argument_validator->isIgnorable()){
$arg = sprintf("if(isset(%s)) {", '$args->'.$this->variable_name)
. $arg
. sprintf("} else \n$%s_argument = null;", $this->argument_name);
}
return $arg;
}
}
?>