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Name	Description
File interface	Common file handling functions.

Functions that call file_save_upload()

Name	Location	Description
aggregator_form_opml_submit	drupal/modules/aggregator/aggregator.admin.inc	Process aggregator_form_opml form submissions.
fileupload_submit	contributions/docs/developer/examples/fileupload.module	Implementation of hook_submit().
hook_prepare	drupal/modules/node/node.api.php	This is a hook used by node modules. It is called after load but before the node is shown on the add/edit form.
locale_translate_import_form_submit	drupal/includes/locale.inc	Process the locale import form submission.
system_theme_settings	drupal/modules/system/system.admin.inc	Form builder; display theme configuration for entire site and individual themes.
upload_node_form_submit	drupal/modules/upload/upload.module	Save new uploads and store them in the session to be associated to the node on upload_save.
_file_test_form_submit	drupal/modules/simpletest/tests/file_test.module	Process the upload.

Functions called by file_save_upload()

Name	Location	Description
db_last_insert_id	drupal/includes/database/database.inc	Returns the last insert id.
db_query	drupal/includes/database/database.inc	Execute an arbitrary query string against the active database.
drupal_set_message	drupal/includes/bootstrap.inc	Set a message which reflects the status of the performed operation.
drupal_write_record	drupal/includes/common.inc	Save a record to the database based upon the schema.
file_check_path	drupal/includes/file.inc	Checks path to see if it is a directory, or a directory/file.
file_create_path	drupal/includes/file.inc	Make sure the destination is a complete path and resides in the file system directory, if it is not prepend the file system directory.
file_destination	drupal/includes/file.inc	Determines the destination path for a file depending on how replacement of existing files should be handled.
file_directory_temp	drupal/includes/file.inc	Determine the default temporary directory.
file_get_mimetype	drupal/includes/file.inc	Determine an Internet Media Type, or MIME type from a filename.
file_move	drupal/includes/file.inc	Move a file to a new location and update the file's database entry.
file_munge_filename	drupal/includes/file.inc	Munge the filename as needed for security purposes.
file_save	drupal/includes/file.inc	Save a file object to the database.
file_upload_max_size	drupal/includes/file.inc	Determine the maximum file upload size by querying the PHP settings.
file_validate	drupal/includes/file.inc	Check that a file meets the criteria specified by the validators.
format_size	drupal/includes/common.inc	Generate a string representation for the given byte count.
form_set_error	drupal/includes/form.inc	File an error against a form element.
t	drupal/includes/common.inc	Translate strings to the page language or a given language.
theme	drupal/includes/theme.inc	Generate the themed output.
variable_get	drupal/includes/bootstrap.inc	Return a persistent variable.
watchdog	drupal/includes/bootstrap.inc	Log a system message.