The Forms API

The Files That Make Up Your Form

In order to implement a form, you provide a series of files. These files are placed into a subdirectory of the interface/forms/ directory of your OpenEMR install.

Required Files

Forms written to use the Forms API MUST provide the following files:

Name	Function	Called by
new.php	Draw a form for users to input data into.	dropdown box on right hand of encounters page
view.php	Draw a form with data in it, allowing users to edit.	selecting a form in an encounter, (optionally) show.php
report.php	Draw part of a form displaying a simple 'report' of the form data.	encounters.php and the medical records report function
table.sql	Perform all of the SQL setup of the form (table creation, list insertion, etc)	Executed by library/registry.inc's installSQL function, called when you hit the 'register' link for a form on the 'forms admin' page.

Optional Files

Other files can exist in your form's directory to provide additional funcionality, EG, a printing function, or a non-encounter form, or just to contain common code used by multiple files in your forms. the following is a list of common file names, and their functions (by convention).

Forms written to use the encounters form API MAY provide the following files:

Name	Function	Called by
info.txt	A more user friendly name for your form. if present, displayed in forms admin page, and used as the name when referring to the form.	library/registry.inc and interface/forms_admin/forms_admin.php
save.php	Save the submitted form data to the database.	new.php and view.php
print.php	Print the current form, with the contents pulled from the database.	view.php
show.php	Show a the most recent (and optionally signed) form of this type(if applicable).	left_nav.php(with modifications)

PHP Files to Include

interface/globals.php

Including globals.php (which is required) brings in many variables which are useful for finding components of openemr, or for inheriting the look and feel of other openemr code.

The preferred method of including globals.php from your form is to use require_once to include, and dirname() to find the current location. For instance: require_once(dirname(__FILE__) . '/../../globals.php');.

Variables

Forms written to use the encounters form API MAY use the following variables after they have included global.php:

Variable	Used For	common value(s) or equivalance.
$GLOBALS['athletic_team']	not false if we need to check squads. part of 'sports team' functionality.	True or False
$GLOBALS['concurrent_layout']	decide on target of back action in a form.	True or False
$GLOBALS['encounter']	the ID of the current encounter, or empty for none.	is_numeric() or ""
$GLOBALS['fileroot']	the path to the top of openemr in the filesystem.	/var/www/openemr/
$GLOBALS['phone_country_code']	calendar code.
$GLOBALS['pid']	The unique identifier of the current patient.	is_numeric(), or empty.
$GLOBALS['srcdir']	find files for inclusion.	/var/www/openemr/library/
$GLOBALS['style']
$GLOBALS['webroot']	the path of the top of openemr, when generating URIs.	/openemr/
$css_header	include the global css stylesheet.
$tmore	the text string that should be the label next to the page name, on a show form page.

The following variables are old, and depreciated.

Variable	Use	Reason for Depreciation
$top_bg_line	colour selection.	the same function can be accomplished by editing the global openemr CSS stylesheet.
$srcdir	find includes.	replaced by $GLOBALS['srcdir']

library/api.inc

This is the file defining the OpenEMR core APIs, including the third party forms API.

for information about the core APIs, please see The OpenEMR API.

The preferred method of including api.inc from your form is to use require_once. for instance: require_once($GLOBALS['srcdir'].'/api.inc');.

Form Functions

Function	Use	Returns
formFetch	retrieve encounter based form contents from the sql engine	results of mysql_fetch_array
formSubmit	save encounter based form contents to the sql engine
formJump	redirect the browser to either the top of the current encounter, or an optional URL.

library/options.inc.php

This file contains functions for rendering form objects.

Functions

• generate_form_field()

library/forms.inc

forms.inc contains the 'addForm' function, for linking a form into an encounter.

library/sql.inc

Function	Use	Returns
sqlInsert	perform insert query	the id of the newly inserted row.
sqlStatement	perform query	result of mysql_query
sqlQuery	perform query	result of mysql_fetch_array

Files commonly referenced in HTML output

Referenced	Used For
library/dialog.js
library/js/jquery.js	jquery
library/textformat.js
$css_header	the css theme of the site
../../forms/$form_folder/style.css	the css theme of this form
library/dynarch_calendar.css	the css theme of calendar objects
library/dynarch_calendar.js	calendar base code
library/dynarch_calendar_en.js	english calendar code
library/dynarch_calendar_setup.js

Depreciated:

Function	From	Reason	Returns
formHeader		display a header for the form.
html_header_show	library/translation.inc.php	NO-OP; depreciated
formFooter	display a form footer