AtkDummyAttribute

Attribute: atkDummyAttribute API docs | Flags

List of other attributes

atkDummyAttribute screenshot

it is possible to use this attribute among other things to give a dynamic non edit field. a none dynamic string from other attributes should use atkParserAttribute instead.

for example:

  $this->add(new atkAttribute("first_name", AF_HIDE_LIST|AF_FORCE_LOAD));
  $this->add(new atkAttribute("last_name", AF_HIDE_LIST|AF_FORCE_LOAD));
  $this->add(new atkDummyAttribute("name_citation"));

  function name_citation_display($record) 
  {
    if (strlen($record["last_name"]) <> 0) 
    {
      $string = $record["last_name"] . ", ". $record["first_name"];
    } 
    else 
    { 
      $string = $record["first_name"];
    }
  
    return $string;
  }

Note the AF_FORCE_LOAD without it the fields wont be in the returned result if AF_HIDE_LIST is used

from a table of:

John	Doe
Jane

This should produce:

Doe, John

Jane

FAQ

Where are the attribute labels?

The atkDummyAttribute defaults to no label. If you wish to reinstate the label, configure it as follows:

  public static function meta(atkMetaPolicy $policy) {
    $policy->add("additional_price", "atkDummyAttribute", array(null, AF_DUMMY_SHOW_LABEL));
  }

(Do not attempt to set the flag using the third argument to add(), and do not attempt to remove the label afterwards; it must be passed through to the atkDummyAttribute constructor, as above.)

See Also

• Usage without DB I/O Polymorphism - prevent an attribute from attempting to access the database; useful if you want to create a dummy "structured" attribute, such as a date attribute
• AtkExpressionAttribute - value is an SQL expression
• AtkParserAttribute - value is derived from other attributes