/**
* defines the default image
*
* @param string $image path to the default image file, relative to the WP root
*/
public function set_default_image($image = false)
{
if (!$image) {
$this->default_image = Participants_Db::$plugin_options['default_image'];
} else {
$this->default_image = $image;
}
$default_image = trailingslashit(PDb_Path::base_url()) . ltrim($this->default_image, '/');
// error_log(__METHOD__.' setting: '.$this->default_image.' full: '.$default_image);
if (!empty($this->default_image) and @getimagesize($default_image)) {
$this->default_image = $default_image;
} else {
$this->default_image = false;
}
}
/**
* handles a file upload
*
* @param string $name the name of the current field
* @param array $file the $_FILES array element corresponding to one file
* @param int|bool record id if the action is an update
*
* @return string the path to the uploaded file or false if error
*/
private static function _handle_file_upload($field_name, $file, $id = false)
{
$field_atts = self::get_field_atts($field_name);
$type = 'image-upload' == $field_atts->form_element ? 'image' : 'file';
$delete_checked = (bool) (isset($_POST[$field_name . '-deletefile']) and $_POST[$field_name . '-deletefile'] == 'delete');
$_POST[$field_name . '-deletefile'] = '';
// attempt to create the target directory if it does not exist
if (!is_dir(PDb_Path::files_path())) {
if (false === PDb_Path::_make_uploads_dir()) {
return false;
}
}
if (!is_uploaded_file(realpath($file['tmp_name']))) {
self::_show_validation_error(__('There is something wrong with the file you tried to upload. Try another.', 'participants-database'), $field_name);
return false;
}
/* get the allowed file types and test the uploaded file for an allowed file
* extension
*/
$extensions = empty($field_atts->values) ? self::$plugin_options['allowed_file_types'] : implode(',', self::unserialize_array($field_atts->values));
$test = preg_match('#^(.+)\\.(' . implode('|', array_map('trim', explode(',', str_replace('.', '', strtolower($extensions))))) . ')$#', strtolower($file['name']), $matches);
//error_log(__METHOD__.' ext:'.$extensions.' test:'. $test.' matches:'.print_r($matches,1));
if (0 === $test) {
if ($type == 'image' && empty($field_atts->values)) {
self::_show_validation_error(sprintf(__('For "%s", you may only upload image files like JPEGs, GIFs or PNGs.', 'participants-database'), $field_atts->title), $field_name);
} else {
self::_show_validation_error(sprintf(__('The file selected for "%s" must be one of these types: %s. ', 'participants-database'), $field_atts->title, preg_replace('#(,)(?=[^,])#U', ', ', $extensions)), $field_name);
}
return false;
} else {
// validate and construct the new filename using only the allowed file extension
$new_filename = preg_replace(array('#\\.#', "/\\s+/", "/[^-\\.\\w]+/"), array("-", "_", ""), $matches[1]) . '.' . $matches[2];
// now make sure the name is unique by adding an index if needed
$index = 1;
while (file_exists(PDb_Path::files_path() . $new_filename)) {
$filename_parts = pathinfo($new_filename);
$new_filename = preg_replace(array('#_[0-9]+$#'), array(''), $filename_parts['filename']) . '_' . $index . '.' . $filename_parts['extension'];
$index++;
}
}
if ($type == 'image') {
/*
* we perform a validity check on the image files, this also makes sure only
* images are uploaded in image upload fields
*/
$fileinfo = getimagesize($file['tmp_name']);
$valid_image = in_array($fileinfo[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG, IMAGETYPE_WBMP));
if (!$valid_image) {
self::_show_validation_error(sprintf(__('For "%s", you may only upload image files like JPEGs, GIFs or PNGs.', 'participants-database'), $field_atts->title), $field_name);
return false;
}
}
if ($file['size'] > self::$plugin_options['image_upload_limit'] * 1024) {
self::_show_validation_error(sprintf(__('The file you tried to upload is too large. The file must be smaller than %sK.', 'participants-database'), self::$plugin_options['image_upload_limit']), $field_name);
return false;
}
if (false === move_uploaded_file($file['tmp_name'], PDb_Path::files_path() . $new_filename)) {
self::_show_validation_error(__('The file could not be saved.', 'participants-database'));
return false;
}
/*
* if a previously uploaded file exists and the preference is to allow user deletes,
* the previously uploaded file is deleted. If an admin wants to delete a file while
* user deletes are not allowed, they must check the delete box.
*
* as of 1.5.5
*/
if ($id !== false) {
$record_data = self::get_participant($id);
if (!empty($record_data[$field_name])) {
$image_obj = new PDb_Image(array('filename' => $record_data[$field_name]));
if ($image_obj->image_defined and self::$plugin_options['file_delete'] == '1' || is_admin() && $delete_checked) {
self::delete_file($record_data[$field_name]);
}
}
}
/*
* as of 1.3.2 we save the image as filename only; the image is retrieved from
* the directory defined in the plugin setting using the self::get_image function
*/
return $new_filename;
}
/**
* returns an element value formatted for display or storage
*
* this supplants the function Participants_Db::prep_field_for_display
*
* @param object $field a Field_Item object
* @param bool $html if true, retuns the value wrapped in HTML, false returns
* the formatted value alone
* @return string the object's current value, formatted
*/
public static function get_field_value_display($field, $html = true)
{
$return = '';
/**
* filter: pdb-before_display_form_element
*
* @since 1.6
*
* @param string $return the value display
* @param object $field the field object
*
* formerly, this was set as "pdb-before_display_field" and included a more limited set of arguments
*/
if (has_filter(Participants_Db::$prefix . 'before_display_form_element')) {
$return = Participants_Db::set_filter('before_display_form_element', $return, $field);
} elseif (has_filter(Participants_Db::$prefix . 'before_display_field')) {
// provided for backward-compatibility
$return = Participants_Db::set_filter('before_display_field', $return, $field->value, $field->form_element);
}
if (empty($return)) {
switch ($field->form_element) {
case 'image-upload':
$image = new PDb_Image(array('filename' => $field->value, 'link' => isset($field->link) ? $field->link : false, 'mode' => 'both', 'module' => $field->module));
if ($html) {
if (isset($field->module) and in_array($field->module, array('single', 'list'))) {
$image->display_mode = 'image';
} elseif (isset($field->module) and in_array($field->module, array('signup'))) {
$image->display_mode = $image->image_defined ? 'both' : 'none';
$image->link = false;
}
$image->set_image_wrap();
$return = $image->get_image_html();
} elseif ($image->file_exists) {
$return = $image->get_image_file();
} else {
$return = $field->value;
}
break;
case 'file-upload':
if ($html and !empty($field->value)) {
if ($field->module == 'signup') {
$field->link = false;
$return = $field->value;
} else {
$field->link = PDb_Path::files_uri() . $field->value;
$return = self::make_link($field);
}
break;
} else {
$return = $field->value;
break;
}
case 'date':
case 'timestamp':
$return = '';
if (self::is_empty($field->value) === false) {
$date = Participants_Db::parse_date($field->value, $field);
$format = Participants_Db::$date_format;
if (Participants_Db::plugin_setting_is_true('show_time') and $field->form_element === 'timestamp') {
$format .= ' ' . get_option('time_format');
}
$return = date_i18n($format, $date);
} else {
$return = '';
}
break;
case 'multi-checkbox':
case 'multi-select-other':
/*
* these elements are stored as serialized arrays of values, the data is displayed
* a comma-separated string of the values, using the value titles if defined
*/
$return = self::array_display($field);
break;
case 'link':
$linkdata = maybe_unserialize($field->value);
if (!is_array($linkdata)) {
$return = '';
break;
}
if (empty($linkdata[1])) {
$linkdata[1] = str_replace('http://', '', $linkdata[0]);
}
if ($html) {
$return = vsprintf(empty($linkdata[0]) ? '%1$s%2$s' : '<a href="%1$s">%2$s</a>', $linkdata);
} else {
$return = $linkdata[0];
}
break;
case 'text-line':
if ($html) {
$field->value = self::get_value_title($field->value, $field->name);
$return = self::make_link($field);
break;
} else {
$return = $field->value;
break;
}
case 'text-area':
case 'textarea':
$pattern = $html ? '<span ' . self::class_attribute('textarea') . '>%s</span>' : '%s';
$return = sprintf($pattern, $field->value);
break;
case 'rich-text':
if ($html) {
$return = sprintf('<span ' . self::class_attribute('textarea richtext') . '>%s</span>', Participants_Db::process_rich_text($field->value));
} else {
$return = strip_tags($field->value);
}
break;
case 'dropdown':
case 'radio':
case 'checkbox':
case 'dropdown-other':
case 'select-other':
$field->value = self::array_display($field);
if ($html) {
$return = sprintf('<span %s>%s</span>', self::class_attribute($field->form_element), self::make_link($field));
} else {
$return = $field->value;
}
break;
case 'placeholder':
$field->value = $field->default;
$return = $html ? self::make_link($field) : $field->value;
break;
case 'hidden':
if ($field->value === $field->default) {
$field->value = '';
} elseif (!Participants_Db::is_dynamic_value($field->default)) {
$field->value = $field->default;
}
default:
$return = $html ? self::make_link($field) : $field->value;
}
}
return $return;
}
/**
* sets the uploads directory path
*
* @return bool true if the directory is located
*/
function _set_upload_dir()
{
$this->upload_directory = PDb_Path::files_location();
// check for the target directory; attept to create if it doesn't exist
return is_dir($this->root_path . $this->upload_directory) ? true : PDb_Path::_make_uploads_dir($this->upload_directory);
}
/**
* deletes a file
*
* this looks in the fie upload directory and deletes $filename if found
*
* @param string $filename
* @return bool success
*/
public static function delete_file($filename)
{
$current_dir = getcwd();
// save the cirrent dir
chdir(PDb_Path::files_path());
// set the plugin uploads dir
$result = unlink(basename($filename));
// delete the file
chdir($current_dir);
// change back to the previous directory
return $result;
}
