file_manage_form_submit in modules/file/file.pages.inc

Form submission handler for the 'Save' button for file_manage_form().

file_move in includes/file.inc

Moves a file to a new location and update the file's database entry.

FilePrivateTestCase::testPrivateFileDownloadAccessGranted in modules/file/tests/file.test

Tests file access for private nodes when file download access is granted.

FileUnmanagedMoveTest::testMissing in modules/simpletest/tests/file.test

Try to move a missing file.

FileUnmanagedMoveTest::testNormal in modules/simpletest/tests/file.test

Move a normal file.

FileUnmanagedMoveTest::testOverwriteSelf in modules/simpletest/tests/file.test

Try to move a file onto itself.

file_unmanaged_save_data in includes/file.inc

Saves a file to the specified destination without invoking file API.

_image_field_default_image_validate in modules/image/image.field.inc

Element validation function for setting a default image.

image_field_update_field in modules/image/image.module

Implements hook_field_update_field().

image_gd_save in modules/system/image.gd.inc

GD helper to write an image resource to a destination file.