Functions Reference

Container functions
F
ILEMAKER FUNCTIONS REFERENCE 41
GetContainerAttribute
Purpose
Returns the file metadata of the specified container field.
Format
GetContainerAttribute(sourceField;attributeName)
Parameters
sourceField - the name of a container field.
attributeName - the name of a supported attribute (see below).
Data type returned
text, number, date, time, timestamp, container
Originated in
FileMaker Pro 13.0
Description
Some attributes may not return a result. For example, the values for the latitude and longitude of a
photo may not be available, or some audio metadata like album art may not be available because
the metadata is stored outside the audio file. Some individual attributes in the group attribute
all
may not be applicable in some circumstances.
Tip To minimize the frequency with which FileMaker Pro analyzes container data, use
GetContainerAttribute in a field's auto-enter calculation and deselect Do not replace existing value
of field (if any). In this case, GetContainerAttribute will update only when the contents of the
specified container field change. If GetContainerAttribute is used in a calculation field definition, the
calculation may update each time the current record changes, reducing the performance of your
solution.
Attributes
Attribute Returns Data type returned
General
filename The name of the file inserted into the container field. text
MD5 The result of applying the cryptographic hash function MD5
to a file inserted into the container field or a file referenced by
a container field.
text
storageType The method used to store the data in the container field:
Embedded, External (Secure), External (Open), File
Reference, Text.
text
fileSize The size (in bytes) of the file inserted into the container field. number
internalSize The amount (in bytes) of the space inside the database file
that is occupied by the container field.
number