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class views_php_handler_field in Views PHP 7.2

Same name and namespace in other branches
  1. 6 plugins/views/views_php_handler_field.inc \views_php_handler_field
  2. 7 plugins/views/views_php_handler_field.inc \views_php_handler_field

A handler to provide a field that is constructed by the administrator using PHP.

Hierarchy

Expanded class hierarchy of views_php_handler_field

1 string reference to 'views_php_handler_field'
views_php_views_data in ./views_php.views.inc
Implements hook_views_data().

File

plugins/views/views_php_handler_field.inc, line 8

View source 
class views_php_handler_field extends views_handler_field {
  const CLICK_SORT_DISABLED = 0;
  const CLICK_SORT_NUMERIC = 1;
  const CLICK_SORT_ALPHA = 2;
  const CLICK_SORT_ALPHA_CASE = 3;
  const CLICK_SORT_NAT = 4;
  const CLICK_SORT_NAT_CASE = 5;
  const CLICK_SORT_PHP = 6;
  protected $php_static_variable = NULL;

  /**
   * Implements views_object#option_definition().
   */
  function option_definition() {
    $options = parent::option_definition();
    $options['use_php_setup'] = array(
      'default' => FALSE,
    );
    $options['php_setup'] = array(
      'default' => '',
    );
    $options['php_value'] = array(
      'default' => '',
    );
    $options['php_output'] = array(
      'default' => '',
    );
    $options['use_php_click_sortable'] = array(
      'default' => self::CLICK_SORT_DISABLED,
    );
    $options['php_click_sortable'] = array(
      'default' => FALSE,
    );
    return $options;
  }

  /**
   * Implements views_handler#options_form().
   */
  function options_form(&$form, &$form_state) {
    parent::options_form($form, $form_state);
    $form += views_php_form_element($this, array(
      'use_php_setup',
      t('Use setup code'),
      t('If checked, you can provide PHP code to be run once right before execution of the view. This may be useful to define functions to be re-used in the value and/or output code.'),
    ), array(
      'php_setup',
      t('Setup code'),
      t('Code to run right before execution of the view.'),
      FALSE,
    ), array(
      '$view',
      '$handler',
      '$static',
    ));
    $form += views_php_form_element($this, FALSE, array(
      'php_value',
      t('Value code'),
      t('Code to construct the value of this field.'),
      FALSE,
    ), array(
      '$view',
      '$handler',
      '$static',
      '$row',
    ));
    $form += views_php_form_element($this, array(
      'use_php_click_sortable',
      t('Enable click sort'),
      t('If checked, you can use PHP code to enable click sort on the field.'),
    ), array(
      'php_click_sortable',
      t('Click sort code'),
      t('The comparison code must return an integer less than, equal to, or greater than zero if the first row should respectively appear before, stay where it was compared to, or appear after the second row.'),
      FALSE,
    ), array(
      '$view',
      '$handler',
      '$static',
      '$row1' => t('Data of row.'),
      '$row2' => t('Data of row to compare against.'),
    ));
    $form['use_php_click_sortable']['#type'] = 'select';
    $form['use_php_click_sortable']['#options'] = array(
      self::CLICK_SORT_DISABLED => t('No'),
      self::CLICK_SORT_NUMERIC => t('Sort numerically'),
      self::CLICK_SORT_ALPHA => t('Sort alphabetically'),
      self::CLICK_SORT_ALPHA_CASE => t('Sort alphabetically (case insensitive)'),
      self::CLICK_SORT_NAT => t('Sort using a "natural order" algorithm'),
      self::CLICK_SORT_NAT_CASE => t('Sort using a "natural order" algorithm (case insensitive)'),
      self::CLICK_SORT_PHP => t('Sort using custom PHP code'),
    );
    $form['use_php_click_sortable']['#default_value'] = $this->options['use_php_click_sortable'];
    $form['php_click_sortable']['#states'] = array(
      'visible' => array(
        ':input[name="options[use_php_click_sortable]"]' => array(
          'value' => (string) self::CLICK_SORT_PHP,
        ),
      ),
    );
    $form += views_php_form_element($this, FALSE, array(
      'php_output',
      t('Output code'),
      t('Code to construct the output of this field.'),
      TRUE,
    ), array(
      '$view',
      '$handler',
      '$static',
      '$row',
      '$data',
      '$value' => t('Value of this field.'),
    ));
  }

  /**
   * Implements views_handler_field#query().
   *
   * @see views_php_views_pre_execute()
   */
  function query() {

    // Provide an field alias but don't actually alter the query.
    $this->field_alias = 'views_php_' . $this->position;

    // Inform views_php_views_pre_execute() to seize control over the query.
    $this->view->views_php = TRUE;
  }

  /**
   * Implements views_handler_field#click_sortable().
   */
  function click_sortable() {
    return $this->options['use_php_click_sortable'] != self::CLICK_SORT_DISABLED;
  }

  /**
   * Implements views_handler_field#click_sort().
   *
   * @see self::php_post_execute()
   */
  function click_sort($order) {
    $this->php_click_sort_order = $order;
  }

  /**
   *
   * @see views_php_views_pre_execute()
   * @see self::php_post_execute()
   */
  function php_pre_execute() {

    // Execute static PHP code.
    if (!empty($this->options['php_setup'])) {
      $code = $this->options['php_setup'] . ';';
      $function = function ($view, $handler, &$static) use ($code) {
        eval($code);
      };
      ob_start();
      $function($this->view, $this, $this->php_static_variable);
      ob_end_clean();
    }
  }

  /**
   *
   * @see views_php_views_post_execute()
   */
  function php_post_execute() {

    // Execute value PHP code.
    if (!empty($this->options['php_value'])) {
      $code = $this->options['php_value'] . ';';
      $function = function ($view, $handler, &$static, $row) use ($code) {
        return eval($code);
      };
      ob_start();
      foreach ($this->view->result as $i => &$row) {
        $normalized_row = new stdClass();
        foreach ($this->view->display_handler
          ->get_handlers('field') as $field => $handler) {

          // Do not add our own field. Also, do not add other fields that have no data yet. This occurs because
          // the value code is evaluated in hook_views_post_execute(), but field data is made available in hook_views_pre_render(),
          // which is called after hook_views_post_execute().
          if ((empty($handler->aliases) || empty($handler->aliases['entity_type'])) && $handler->field_alias != $this->field_alias) {
            $normalized_row->{$field} = isset($row->{$handler->field_alias}) ? $row->{$handler->field_alias} : NULL;
          }
        }
        $row->{$this->field_alias} = $function($this->view, $this, $this->php_static_variable, $normalized_row);
      }
      ob_end_clean();
    }

    // If we're sorting, do the actual sorting then fix the results as per the pager info.
    if (!empty($this->options['use_php_click_sortable']) && !empty($this->php_click_sort_order)) {
      if ($this->options['use_php_click_sortable'] == self::CLICK_SORT_PHP) {
        if (!empty($this->options['php_click_sortable'])) {
          $this->php_click_sort_function = TRUE;
        }
      }
      else {
        $predefined = array(
          self::CLICK_SORT_NUMERIC => array(
            $this,
            'php_click_sort_numeric',
          ),
          self::CLICK_SORT_ALPHA => 'strcasecmp',
          self::CLICK_SORT_ALPHA_CASE => 'strcmp',
          self::CLICK_SORT_NAT => 'strnatcasecmp',
          self::CLICK_SORT_NAT_CASE => 'strnatcmp',
        );
        $this->php_click_sort_function = $predefined[$this->options['use_php_click_sortable']];
      }
      if (isset($this->php_click_sort_function)) {
        usort($this->view->result, array(
          $this,
          'php_click_sort',
        ));
      }
    }
  }

  /**
   * Helper function; usort() callback for click sort support.
   */
  function php_click_sort($row1, $row2) {
    $factor = strtoupper($this->php_click_sort_order) == 'ASC' ? 1 : -1;
    $function = $this->php_click_sort_function;
    if (is_bool($this->php_click_sort_function)) {
      $code = $this->options['php_click_sortable'] . ';';
      $function = function ($view, $handler, &$static, $row1, $row2) use ($code) {
        return eval($code);
      };
    }
    if ($this->options['use_php_click_sortable'] == self::CLICK_SORT_PHP) {
      foreach (array(
        'row1' => 'normalized_row1',
        'row2' => 'normalized_row2',
      ) as $name => $normalized_name) {
        ${$normalized_name} = new stdClass();
        foreach ($this->view->display_handler
          ->get_handlers('field') as $field => $handler) {
          ${$normalized_name}->{$field} = isset(${$name}->{$handler->field_alias}) ? ${$name}->{$handler->field_alias} : NULL;
        }
      }
      ob_start();
      $result = (int) $function($this->view, $this, $this->php_static_variable, $normalized_row1, $normalized_row2);
      ob_end_clean();
    }
    else {
      $result = $function($row1->{$this->field_alias}, $row2->{$this->field_alias});
    }
    return $factor * $result;
  }

  /**
   * Helper function; usort callback for numeric sort.
   */
  function php_click_sort_numeric($a, $b) {
    return $a - $b;
  }

  /**
   * Implements views_handler_field#render().
   */
  function render($values) {
    if (!empty($this->options['php_output'])) {
      $normalized_row = new stdClass();
      if (empty($this->view->style_plugin->rendered_fields)) {
        foreach ($this->view->field as $id => $field) {
          if ($field->field_alias != $this->field_alias) {
            $normalized_row->{$id} = $field
              ->get_value($values);
          }
        }
      }
      else {
        foreach ($this->view->style_plugin->rendered_fields[$this->view->row_index] as $field => $value) {
          $normalized_row->{$field} = $value;
        }
      }
      $code = ' ?>' . $this->options['php_output'];
      $function = function ($view, $handler, &$static, $row, $data, $value) use ($code) {
        eval($code);
      };
      ob_start();
      $function($this->view, $this, $this->php_static_variable, $normalized_row, $values, isset($values->{$this->field_alias}) ? $values->{$this->field_alias} : NULL);
      $value = ob_get_clean();
    }
    else {
      if (isset($values->{$this->field_alias})) {
        $value = check_plain($values->{$this->field_alias});
      }
    }
    if (isset($value)) {
      return $value;
    }
  }

}

Members

Namesort descending Modifiers Type Description Overrides
views_handler::$handler_type public property The type of the handler, for example filter/footer/field.
views_handler::$query public property Where the $query object will reside:. 1
views_handler::$real_field public property The actual field in the database table, maybe different on other kind of query plugins/special handlers.
views_handler::$relationship public property The relationship used for this field.
views_handler::$table_alias public property The alias of the table of this handler which is used in the query.
views_handler::$view public property The top object of a view. Overrides views_object::$view
views_handler::accept_exposed_input public function Take input from exposed handlers and assign to this handler, if necessary. 1
views_handler::access public function Check whether current user has access to this handler. 10
views_handler::broken public function Determine if the handler is considered 'broken'. 6
views_handler::can_expose public function Determine if a handler can be exposed. 2
views_handler::case_transform public function Transform a string by a certain method.
views_handler::ensure_my_table public function Ensure the main table for this handler is in the query. This is used a lot. 8
views_handler::exposed_form public function Render our chunk of the exposed handler form when selecting. 1
views_handler::exposed_info public function Get information about the exposed form for the form renderer. 1
views_handler::exposed_submit public function Submit the exposed handler form.
views_handler::exposed_validate public function Validate the exposed handler form. 4
views_handler::expose_form public function Form for exposed handler options. 2
views_handler::expose_options public function Set new exposed option defaults when exposed setting is flipped on. 2
views_handler::expose_submit public function Perform any necessary changes to the form exposes prior to storage. There is no need for this function to actually store the data.
views_handler::expose_validate public function Validate the options form. 1
views_handler::extra_options public function Provide defaults for the handler.
views_handler::extra_options_form public function Provide a form for setting options. 1
views_handler::extra_options_submit public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data.
views_handler::extra_options_validate public function Validate the options form.
views_handler::get_field public function Shortcut to get a handler's raw field value.
views_handler::get_join public function Get the join object that should be used for this handler.
views_handler::groupby_form public function Provide a form for aggregation settings. 1
views_handler::groupby_form_submit public function Perform any necessary changes to the form values prior to storage. There is no need for this function to actually store the data. 1
views_handler::has_extra_options public function If a handler has 'extra options' it will get a little settings widget and another form called extra_options. 1
views_handler::is_a_group public function Returns TRUE if the exposed filter works like a grouped filter. 1
views_handler::is_exposed public function Determine if this item is 'exposed', meaning it provides form elements to let users modify the view.
views_handler::multiple_exposed_input public function Define if the exposed input has to be submitted multiple times. This is TRUE when exposed filters grouped are using checkboxes as widgets. 1
views_handler::needs_style_plugin public function Determine if the argument needs a style plugin. 1
views_handler::options_validate public function Validate the options form. 4
views_handler::placeholder public function Provides a unique placeholders for handlers.
views_handler::post_execute public function Run after the view is executed, before the result is cached. 1
views_handler::pre_query public function Run before the view is built. 1
views_handler::sanitize_value public function Sanitize the value for output.
views_handler::set_relationship public function Called just prior to query(), this lets a handler set up any relationship it needs.
views_handler::show_expose_button public function Shortcut to display the expose/hide button. 2
views_handler::show_expose_form public function Shortcut to display the exposed options form.
views_handler::store_exposed_input public function If set to remember exposed input in the session, store it there. 1
views_handler::use_group_by public function Provides the handler some groupby. 2
views_handler::validate public function Validates the handler against the complete View. 1
views_handler_field::$additional_fields public property Stores additional fields which get added to the query. The generated aliases are stored in $aliases.
views_handler_field::$aliases public property
views_handler_field::$field_alias public property
views_handler_field::$last_render_index protected property Keeps track of the last render index.
views_handler_field::$original_value public property The field value prior to any rewriting.
views_handler_field::add_additional_fields public function Add 'additional' fields to the query.
views_handler_field::add_self_tokens public function Add any special tokens this field might use for itself. 4
views_handler_field::admin_summary public function Provide extra data to the administration form Overrides views_handler::admin_summary
views_handler_field::advanced_render public function Render a field using advanced settings.
views_handler_field::allow_advanced_render public function Determine if this field can allow advanced rendering. 1
views_handler_field::construct public function Construct a new field handler. Overrides views_object::construct 17
views_handler_field::document_self_tokens public function Document any special tokens this field might use for itself. 4
views_handler_field::element_classes public function Return the class of the field.
views_handler_field::element_label_classes public function Return the class of the field's label.
views_handler_field::element_label_type public function Return an HTML element for the label based upon the field's element type.
views_handler_field::element_type public function Return an HTML element based upon the field's element type. 2
views_handler_field::element_wrapper_classes public function Return the class of the field's wrapper.
views_handler_field::element_wrapper_type public function Return an HTML element for the wrapper based upon the field's element type.
views_handler_field::get_elements public function Provide a list of elements valid for field HTML.
views_handler_field::get_render_tokens public function Get the 'render' tokens to use for advanced rendering.
views_handler_field::get_token_values_recursive public function Recursive function to add replacements for nested query string parameters.
views_handler_field::get_value public function Get the value that's supposed to be rendered. 3
views_handler_field::init public function Init the handler with necessary data. Overrides views_handler::init 11
views_handler_field::is_value_empty public function Checks if a field value is empty.
views_handler_field::label public function Get this field's label.
views_handler_field::options_submit public function Performs some cleanup tasks on the options array before saving it. Overrides views_handler::options_submit 1
views_handler_field::pre_render public function Run before any fields are rendered. 8
views_handler_field::render_altered public function Render this field as altered text, from a fieldset set by the user.
views_handler_field::render_as_link public function Render this field as a link, with info from a fieldset set by the user.
views_handler_field::render_text public function Perform an advanced text render for the item.
views_handler_field::render_trim_text public function Trim the field down to the specified length.
views_handler_field::theme public function Call out to the theme() function.
views_handler_field::theme_functions public function Build a list of suitable theme functions for this view.
views_handler_field::tokenize_value public function Replace a value with tokens from the last field.
views_handler_field::ui_name public function Return a string representing this handler's name in the UI. Overrides views_handler::ui_name 1
views_handler_field::use_string_group_by public function Determines if this field will be available as an option to group the result by in the style settings.
views_object::$definition public property Handler's definition.
views_object::$options public property Except for displays, options for the object will be held here. 1
views_object::altered_option_definition function Collect this handler's option definition and alter them, ready for use.
views_object::destroy public function Destructor. 2
views_object::export_option public function 1
views_object::export_options public function
views_object::export_option_always public function Always exports the option, regardless of the default value.
views_object::options Deprecated public function Set default options on this object. 1
views_object::set_default_options public function Set default options.
views_object::set_definition public function Let the handler know what its full definition is.
views_object::unpack_options public function Unpack options over our existing defaults, drilling down into arrays so that defaults don't get totally blown away.
views_object::unpack_translatable public function Unpack a single option definition.
views_object::unpack_translatables public function Unpacks each handler to store translatable texts.
views_object::_set_option_defaults public function
views_php_handler_field::$php_static_variable protected property
views_php_handler_field::click_sort function Implements views_handler_field#click_sort(). Overrides views_handler_field::click_sort
views_php_handler_field::click_sortable function Implements views_handler_field#click_sortable(). Overrides views_handler_field::click_sortable
views_php_handler_field::CLICK_SORT_ALPHA constant
views_php_handler_field::CLICK_SORT_ALPHA_CASE constant
views_php_handler_field::CLICK_SORT_DISABLED constant
views_php_handler_field::CLICK_SORT_NAT constant
views_php_handler_field::CLICK_SORT_NAT_CASE constant
views_php_handler_field::CLICK_SORT_NUMERIC constant
views_php_handler_field::CLICK_SORT_PHP constant
views_php_handler_field::options_form function Implements views_handler#options_form(). Overrides views_handler_field::options_form
views_php_handler_field::option_definition function Implements views_object#option_definition(). Overrides views_handler_field::option_definition
views_php_handler_field::php_click_sort function Helper function; usort() callback for click sort support.
views_php_handler_field::php_click_sort_numeric function Helper function; usort callback for numeric sort.
views_php_handler_field::php_post_execute function
views_php_handler_field::php_pre_execute function
views_php_handler_field::query function Implements views_handler_field#query(). Overrides views_handler_field::query
views_php_handler_field::render function Implements views_handler_field#render(). Overrides views_handler_field::render