Overview

The Patient Flags module allows users to create "flags" that generate warning messages in the Patient Dashboard.

A flag is simply some criteria (stored in a string), and an associated message string. The patient flag module computes the flags for a patient (or a group of patients) when in form submission or do this as AOP for data submitted outside of forms and save the results in the database table. Whenever a Patient Dashboard is loaded, it loads the pre-computed patient flags in the database table and the associated message string is displayed. The message string can be simple string, or a code for a localized message stored in message.properties.

All flags can be evaluate against all patients in the system via on the Administration page.

In OpenMRS 2.x, the flags are shown in the patient dashboard under the patient flag section,

Open

patient flags shown in patient dashboard 2.x UI

In the Legacy UI of OpenMRS, flag messages can be configured to be displayed in two primary locations,

1. patient header

2. patient overview section

An example of a patient flag displayed in the patient header:

:

An example of flags displayed in the Overview section:

Open

Download

• Download the Patient Flags module

• View/download the source code from GitHub 

User Guide

On the Administration page, the Patient Flags section provides options to Manage Flags, Manage Tags, Manage Priorities, Manage Flag Display, and Find Flagged Patients.

Use the Manage Flags option to create new flags, and to edit and remove existing ones.

When creating or editing a flag, it may be assigned a priority, which determines the order of flags the style of text when flag messages are displayed on the patient dashboard.  Priority levels and display styles can be set via the Manage Priorities page. A style for a priority can be any valid attribute that can be used within an HTML <span> tag. For example, to create priority where message text appears in red, set the style property to:

Flags can also be associated with one or more tags, which are used to group flags together and to control what specific users (based on role) will see a flag, as well as where the flags are displayed. Use the Manage Tags options to create and edit tags. A tag can be associated with one or more roles and one or more display locations (i.e. the patient dashboard header or patient dashboard overview). Any flag that is associated with a tag will only be displayed in the location(s) associated with the tag, and to a user who has a role associated with the tag.

Note that if a flag has no tags associated with it, it defaults to a "global" flag and is visible to all users in all locations.

The Find Flagged Patients allows one to test a flag, or set of flags, against all Patients in the system.

Flag Types

The module provides for the creation of four types of flags:

Groovy Flag

This flag takes a Groovy script as it's criteria. The script should return a Cohort of all the Patients that should evaluate to "true" for the given flag.

Before execution, the Cohort to test is bound to the variable "testCohort". The shell is configured so that the major OpenMRS services are bound to a variable of the same name, as in the Groovy Module (i.e. the patient service is bound to "patient"). Also, org.openmrs.* is imported by default.

As an example, the following script will flag all female patients in the test Cohort:

Note that the evaluator implicitly intersects the results returned by script with the test Cohort so the above script could simply be written as:return patientSet.getPatientsByCharacteristics("f", null, null);

Security issues with Groovy scripts

SQL Flag

A SQL flag takes a SQL statement as it's criteria. The SQL should be a SELECT that returns all Patients that match the specific criteria. For example, to flag all Patients that have an upcoming encounter scheduled, the criteria would be:

The evaluator implicitly intersects the results returned by the SQL statement with the set of patients being tested.

Note that the SQL statement MUST include ".patient_id" somewhere within the query (where "" can be any non-whitespace characters--for instance, the "e.patient" in the above query fulfils this requirement); the evaluator parses out this substring and uses it to append a WHERE (or AND) to the end of the query statement to restrict the query to a single patient when testing against a single patient. For instance, when attempting to test the above criteria against the patient with patient_id 2, the evaluator executes the following criteria: SELECT e.patient_id FROM encounter e WHERE e.encounter_datetime > now() AND e.patient_id=2
Note that when executing the SQL statement, the evaluator sets the selectOnly parameter of the Administration Service's executeSQL method to "true", so that users can't modify the database. Also, while any user should be able to execute a SQL flag, only those users with the SQL Level Access privilege are able to create or modify SQL flags.

Logic Flag

A logic flag takes as it's criteria a logic string compatible with OpenMRS logic. For instance, the criteria "CD4 COUNT" > 200 AFTER 2009-10-01 will flag all Patients who have a CD4 Count greater than 200 after October 1st, 2009.

Custom Flag

Custom flags can be defined by writing a custom flag evaluator. A custom flag evaluator is any class that implements the FlagEvaluator interface:

Display Points

Currently flags can be configured to display in the patient dashboard header and patient dashboard overview. However, it is possible to create new display points in other modules.

First, the display point should be added to the database:

Then to retrieve a list of flags for a specified patient, user, and display point combination:

Finally, you can loop through the result set and display the flags as you like. For example:

Global Properties

• patientflags.defaultPatientLink - when viewing a list of patients generated using the "Preview" functionality, this defines the link that will be anchored to each patient.  The patient id will be appended to end of the link in the format "patientId=123". If no value is specified, it links to the patient dashboard by default.

Required Privileges

• Manage Flags and Manage Tags require "Manage Flags" privilege

• Find Flagged Patients requires "Test Flags" privilege

Developer Guide

Get the Code

• The module can be checked out through git at https://github.com/openmrs/openmrs-module-patientflags

• You can build the module like any other mavenized module by doing a mvn clean install in the root module package.

REST endpoints

Release Notes

• Version 3.0.7

• Version 3.0.6

• Version 3.0.5

• Version 3.0.4

• Version 3.0.3

• Version 3.0.2

• Version 3.0.1

• Version 3.0.0

• Version 2.1.0

• Version 2.0.0

• Version 1.3.4

• Version 1.3.3

• Version 1.3.2

  • Reverted change made in 1.3.1 since excluding antlr and asm jars was causing problems with executing Groovy flags

  • Added maven plugin to add svn revision number to module version number

• Version 1.3.1

  • Fixed issue in 1.3.0 where antlr and asm jars were being included in the lib folder of the module (this is redundant since they are being provided by OpenMRS core)

• Version 1.3.0

  • Updated to use OpenmrsClassLoader when instantiating an evaluator (to facilitate the use of custom evaluators in other modules)

  • Mavenized codebase

• Version 1.2.9

  • Modified implementation so that flags and associated metadata can be shared using the Sync module

  • Removed auto-creation of default priorities (to facilitate sync)

• Version 1.2.8.1

  • Removed "spring-form.tld" from jsp pages to make module compatible with OpenMRS 1.7, since "spring-form.tld" is included in the OpenMRS header as of 1.7

• Version 1.2.7.1

  • Modified SQL Evaluator so that it will not return voided patients

• Version 1.2.7

  • Fixed ticket http://dev.openmrs.org/ticket/2264

• Version 1.2.6

  • Updated to be compatible with OpenMRS 1.6

• Version 1.2.5

  • Improved Groovy flag evaluator so that privileges given to Groovy scripts can be better customized

  • Fixed SQL flag evaluator so that users without SQL Level Access privilege can still execute (but not create or edit) SQL flags

  • Added convenience method generateFlagsForPatient(Patient patient, Set<Role> roles, String displayPointName)

• Version 1.2.1

  • Fixed typo in patientflags_tag_displaypoint table

• Version 1.2.0

  • Added ability to control flag display based on location and a User's role

  • Added ability to specify custom evaluator types

  • Misc bug fixes/tweaks

• Version 1.1.0

  • Added ability to display flags in the patient header

  • Added UI for modifying priority levels

  • Misc bug fixes/tweaks

• Version 1.0.0

  • Added priority functionality

  • Fixed bugs with SQL evaluator criteria handling

• Version 0.9.0

  • Initial version with basic functionality

Developers

• Mark Goodrich