<?
class form_template {
var $conf_file_name = '';
var $conf_file_text = '';
var $data = '';
var $parameter = array('validation' => '');
var $field = '';
var $field_delimiter = ':'; //delimiter used in config file to seperate field parameters.
var $attribute_delimiter = ','; //delimiter used in field definition to seperate attributes.
// default parameters for display
var $cell_content = ' ';
var $cell_style = 'VALIGN="top"';
var $table_style = 'BORDER="0" CELLPADDING="2" CELLSPACING="1" VALIGN="top"';
var $class_field_input = 'formInput'; // class for input fields.
var $class_field_name = 'formName'; // class for field names.
var $class_seperator = 'formSeperator'; // class for table cell that seperates name and input fields.
var $class_button = 'formButton'; // class for form button.
var $class_error = 'formError'; // class for validation errors.
// parameters for "pretty" table.
var $background = 'CLASS="formBackground"';
var $border_width = '';
var $border_color = '';
// javascript array of fields to validate along with validation information. used for client-side validation
var $javascript_validation_array = '';
function initialise() {
//$this->conf_file = '';
$this->grab_conf_file();
$this->grab_parameters();
} // end of function initialise.
function grab_conf_file() {
if (file_exists($this->conf_file_name)) {
$file_pointer = fopen($this->conf_file_name, "r");
while ($buffer = fgets($file_pointer, 255)) {
$buffer = chop($buffer); //remove any whitespace from end of string.
if (empty($buffer)) continue; //check for blank item.
if (ereg('^#',$buffer,$temp)) continue; // check for comment.
$this->conf_file_text[] = $buffer;
}
fclose($file_pointer);
//} else handle_error(129,'file not found: '.$this->conf_file_name);
} else die('config file not found');
} // end of function grab_conf_file.
function grab_parameters() {
$i = 0;
$javascript_validation_array = '';
reset($this->conf_file_text);
foreach ($this->conf_file_text as $line_num => $line_text) {
if (preg_match('/^\$(\w+)\s*:\s*(.*)\s*$/U', $line_text, $match)) {
if (empty($this->parameter[$match[1]])) $this->parameter[$match[1]] = chop($match[2]);
else $this->parameter[$match[1]] .= chop($match[2]);
} else { // we have field description
$item = explode($this->field_delimiter, $line_text);
$name = trim($item[0]);
@set_var($this->field[$name]['type'], trim($item[1]), '');
@set_var($this->field[$name]['description'], trim($item[2]), $name);
@set_var($this->field[$name]['value'], trim($item[3]), '');
@set_var($this->field[$name]['html_display_options'], trim($item[4]), '');
@set_var($this->field[$name]['valid_entry_regexp'], trim($item[5]), '');
@set_var($this->field[$name]['valid_entry_prompt'], trim($item[6]), '');
@set_var($this->field[$name]['selection_option_id'], trim($item[7]), '');
@set_var($this->field[$name]['selection_option_text'], trim($item[8]), $this->field[$name]['selection_option_id']);
if ($this->parameter['validation']=='client') {
$type = $this->field[$name]['type'];
$description = $this->field[$name]['description'];
$valid_entry_regexp = $this->field[$name]['valid_entry_regexp'];
$valid_entry_prompt = $this->field[$name]['valid_entry_prompt'];
$number_options = sizeof(split(',', $this->field[$name]['selection_option_id']));
$javascript_validation_array .= "field[$i] = Array('$name', '$type', '$description', ";
$javascript_validation_array .= "$valid_entry_regexp, '$valid_entry_prompt', '$number_options');\n";
$i++;
}
}
}
if ($this->parameter['validation']=='client') {
$this->javascript_validation_array = '<SCRIPT LANGUAGE="JavaScript1.2" TYPE="text/javascript">'."\n";
$this->javascript_validation_array .= $javascript_validation_array;
$this->javascript_validation_array .= '</SCRIPT>'."\n";
}
//unset($this->conf_file);
} //end of function grab_parameters.
function validate($data) {
//$this->data = $data;
unset($this->validation_error);
foreach($this->field as $name => $field) {
@set_var($value, $data[$name], '');
@set_var($valid, $this->field[$name]['valid_entry_regexp'], '/.*/');
switch ($this->field[$name]['type']) {
case 'text' :
$test_value = $value;
break;
case 'box' :
$test_value = $value;
break;
case 'select' :
$test_value = @sizeof($data[$name]);
break;
case 'multi' :
$test_value = @sizeof($data[$name]);
@set_var($value, implode(',', $value), '');
break;
case 'radio' :
$test_value = @sizeof($data[$name]);
break;
case 'check' :
$test_value = @sizeof($data[$name]);
@set_var($value, implode(',', $value), '');
break;
}
if (preg_match($valid, $test_value)) $this->field[$name]['value'] = $value;
else {
$this->field[$name]['value'] = $value;
$this->field[$name]['validation_error'] = true;
$this->field[$name]['validation_error_msg'] = $this->field[$name]['valid_entry_prompt'];
$this->validation_error = true;
}
}
} // end of function validate.
function make_table() {
global $PHP_SELF;
$javascript_validation_array = '';
$table = new html_table_pretty;
$table->background = $this->background;
$table->border_width = $this->border_width;
$table->border_color = $this->border_color;
//$table = new html_table;
$table->cell_content = $this->cell_content;
$table->cell_style = $this->cell_style;
$table->table_style = $this->table_style;
if (isset($this->validation_error)) {
$table->init(array("cols"=>4));
$table->col_style[4] = 'CLASS="'.$this->class_error.'" VALIGN="top"';
} else {
$table->init(array("cols"=>3));
}
$table->col_style[1] = 'CLASS="'.$this->class_field_name.'" VALIGN="top"';
$table->col_style[2] = 'CLASS="'.$this->class_seperator.'"';
$table->col_style[3] = 'CLASS="'.$this->class_field_input.'" VALIGN="top"';
$row = 0;
reset($this->field);
foreach ($this->field as $name => $field) {
$row++;
$table->add_rows(1);
$table->cell[$row][1]['content'] = $field['description'];
$table->cell[$row][3]['content'] = $this->html_form_element($name);
if (isset($field['validation_error'])) {
if (isset($this->parameter['validation_error_label']))
$table->cell[$row][4]['content'] = $this->parameter['validation_error_label'];
$table->cell[$row][4]['content'] .= $field['validation_error_msg'];
}
}
$row++;
$table->add_rows(1);
if (isset($this->parameter['update_buttons'])) {
$update_buttons = $this->parameter['update_buttons'];
} else {
if ($this->parameter['validation']=='client') {
$update_buttons = '<INPUT TYPE="hidden" NAME="form_action" VALUE="">';
$update_buttons .= '<INPUT CLASS="'.$this->class_button.'" TYPE="button" VALUE="ok" onClick="javascript:validate(\'ok\');">';
$update_buttons .= ' <INPUT CLASS="'.$this->class_button.'" TYPE="button" VALUE="cancel" onClick="javascript:validate(\'cancel\');">';
$update_buttons .= ' <INPUT CLASS="'.$this->class_button.'" TYPE="button" VALUE="apply" onClick="javascript:validate(\'apply\');">';
} else {
$update_buttons = '<INPUT CLASS="'.$this->class_button.'" TYPE="submit" VALUE="ok" NAME="form_action">';
$update_buttons .= ' <INPUT CLASS="'.$this->class_button.'" TYPE="submit" VALUE="cancel" NAME="form_action">';
$update_buttons .= ' <INPUT CLASS="'.$this->class_button.'" TYPE="submit" VALUE="apply" NAME="form_action">';
}
}
$table->cell[$row][3]['content'] = $update_buttons;
//$table->code();
$table->code_pretty();
//$this->table = '<FORM '.$this->parameter['form_html'].'>'.$table->html.'</FORM>';
$this->table = '<FORM '.$this->parameter['form_html'].'>'.$table->html_pretty.'</FORM>';
} //end of function draw.
function html_form_element($name) {
$html = '';
$type = $this->field[$name]['type'];
$value = $this->field[$name]['value'];
$html_display_options = $this->field[$name]['html_display_options'];
$extra_html = "CLASS=\"$this->class_field_input\"";
switch ($type) {
case 'text' :
$html = "<INPUT TYPE=\"text\" NAME=\"$name\" VALUE=\"$value\" $html_display_options $extra_html >";
break;
case 'box' :
$html = "<TEXTAREA NAME=\"$name\" $html_display_options $extra_html>$value</TEXTAREA>";
break;
case 'select' :
$html = "<SELECT NAME=\"$name\" $html_display_options $extra_html>";
$option_id = explode(',', $this->field[$name]['selection_option_id']);
$option_text = explode(',', $this->field[$name]['selection_option_text']);
foreach ($option_id as $key => $id) {
if ($id==$value) $html .= "<OPTION VALUE=\"$id\" SELECTED>$option_text[$key]</OPTION>";
else $html .= "<OPTION VALUE=\"$id\">$option_text[$key]</OPTION>";
}
$html .= '</SELECT>';
break;
case 'multi' :
$html = "<SELECT NAME=\"{$name}[]\" MULTIPLE $html_display_options $extra_html>";
$option_id = explode(',', $this->field[$name]['selection_option_id']);
$option_text = explode(',', $this->field[$name]['selection_option_text']);
$selected = explode(',', $value);
foreach ($option_id as $key => $id) {
$is_selected = false;
foreach ($selected as $valid_selected) if ($id==$valid_selected) $is_selected = true;
if ($is_selected) $html .= "<OPTION VALUE=\"$id\" SELECTED>$option_text[$key]</OPTION>";
else $html .= "<OPTION VALUE=\"$id\">$option_text[$key]</OPTION>";
}
$html .= '</SELECT>';
break;
case 'radio' :
$option_id = explode(',', $this->field[$name]['selection_option_id']);
$option_text = explode(',', $this->field[$name]['selection_option_text']);
while (list($key, $id) = each($option_id)) {
if ($id==$value) $html .= "<INPUT TYPE=\"radio\" NAME=\"$name\" VALUE=\"$id\" CHECKED>$option_text[$key]</INPUT>$html_display_options";
else $html .= "<INPUT TYPE=\"radio\" NAME=\"$name\" VALUE=\"$id\">$option_text[$key]</INPUT>$html_display_options";
}
break;
case 'check' :
$option_id = explode(',', $this->field[$name]['selection_option_id']);
$option_text = explode(',', $this->field[$name]['selection_option_text']);
$selected = explode(',', $value);
$index = 0; // need to keep track of individual checkboxes.
foreach ($option_id as $key => $id) {
$is_selected = false;
foreach ($selected as $valid_selected) if ($id==$valid_selected) $is_selected = true;
if ($is_selected) $html .= "<INPUT TYPE=\"checkbox\" NAME=\"{$name}[{$index}]\" VALUE=\"$id\" CHECKED>$option_text[$key]</INPUT>$html_display_options";
else $html .= "<INPUT TYPE=\"checkbox\" NAME=\"{$name}[{$index}]\" VALUE=\"$id\">$option_text[$key]</INPUT>$html_display_options";
$index++;
}
break;
} // end switch.
return $html;
} // end of function html_form_element.
} // end class form_template.
?>
|
Download
