Difference between revisions of "Functions"

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'''Designer > Logic > Functions'''
{{Deprecated AJAX API}}


{{Deprecated|Functions have been deprecated. Existing functions can be edited, but it is no longer possible to create them. Instead of writing functions, the recommended practice is to write methods in Java [[Classes]], in order to gain the benefits of an improved [[Development Experience]].}}
{{Deprecated_page|8.0|80}}
 
A ''function'' is reusable Java code that can be called from:
:* Standard Java classes, to create custom business logic.
:* Data policies, to do sophisticated processing.
:* JSP pages, to enhance the operation of the page.
 
==Writing Functions==
Functions work exactly like methods in Java code, and are written as if coding a method body in a Java class. You can consider functions as your own personal library of Java code.
 
Functions are written as if you are writing the body of a method. The platform injects the code you write into a Java [[Classes|class]], adds a method signature, compiles it, and stores the bytecode.
 
The following Java API classes are implicitly imported into functions:
 
:* [[Support_Classes_and_Objects#Result_Class|Result]]
:* [[Support_Classes_and_Objects#Parameters_Class|Parameters]]
:* [[Support_Classes_and_Objects#ParametersIterator_Class|ParametersIterator]]
:* [[Support_Classes_and_Objects#HttpConnection_Class|HttpConnection]]
:* [[Support_Classes_and_Objects#functionParams Object|functionParams Object]]
 
==Accessing Parameters==
 
The [[functionParams Object|Java API <tt>functionParams</tt>]] object contains key-value pairs for the parameters passed to the current function:
:* When making a <tt>[[exec]]</tt> call, it is possible to specify a [[Parameters Class|<tt>Parameters</tt>]] object as an argument
 
Within a called function, access to the parameters is through the <tt>functionParams</tt> object. This example gets a parameter named <tt>number</tt> that was passed to the current function:
 
<pre>
String accountNumber = functionParams.get("number");
</pre>
 
==Restrictions==
 
The Java code in functions follows the same restrictions as in [[Classes|classes]]. A complete list of restrictions is available in the [[Governors]] section.
 
==Calling a Function==
Functions are invoked via [[Utility Calls#exec|exec]], and take arguments passed in [[functionParams Object]]s.
 
Functions can be invoked from:
 
* [[Utility Calls#exec|<tt>exec</tt>]] calls when you [[Invoke a Java Method From a Data Policy]]
* [[Utility Calls#exec|<tt>exec</tt>]] call from Java [[Classes]]
* From JSP [[Pages]]:
** Using <tt>[[Utility Calls#exec|exec]]</tt> calls from embedded Java code
 
 
=== Calling a Function from a Data Policy ===
 
This example calls a function named <tt>calculate_estimated_profit</tt> which takes in account’s revenue and calculates the profit as 30% of the revenue.
 
<pre>
float revenue = params.getFloat("revenue", 0.0);
Parameters params = Functions.getParametersInstance();
params.add("revenue", revenue);
float profit = Functions.exec("calculate_estimated_profit", params);
</pre>
 
=== Calling a Function from a JSP Page ===
This example calls a <tt>someFunction</tt> from Java code embedded in a JSP page.
 
<pre>
<%
  String result = someFunction();
%>
</pre>
 
===Calling a Function from a Class===
 
This example shows calling a function named <tt>add_task</tt> from a class.
 
:<syntaxhighlight lang="java" enclose="div">
import com.platform.api.*;
 
 
import java.util.*;
 
public class ExecAddTask implements Controller
{
  public ControllerResponse execute(HashMap params) throws Exception
  {
      String action = (String)params.get("action");
      if(action == null || action.equals(""))
      {
          return null;
      }
      else
      {
        return addTasks(params);
      }
  }
  private ControllerResponse addTasks(HashMap params) throws Exception
  {
      ControllerResponse cr = new ControllerResponse();
      Result result = null; 
      try
      {
        Parameters addOptions = Functions.getParametersInstance();
        addOptions.add("object_id", "CASE");
        String objectID = (String)params.get("objectID");
        String recordID = (String)params.get("recordID");
        if (objectID!= null && !objectID.equals("")
        &&  recordID!= null && !recordID.equals(""))
        {
                addOptions.add("object_id", objectID);
                addOptions.add("record_id", recordID);
          }
          Functions.exec("add_task", addOptions);
          Functions.debug("Message:" + result.getMessage());
          params.remove("action");
          cr.setData(result);
          cr.setTargetPage("ManageCases.jsp");
      }
      catch(Exception e)
      {
        cr.setTargetPage("ManageCases.jsp");
        cr.setMessage(e.getMessage());
        Functions.debug("Message:" + result.getMessage());       
      }
      return cr;
  }
}
</syntaxhighlight>
 
==Manage Functions==
 
{{permissions|Customize Objects|Edit or delete an existing Function}}
 
<!--
=== Add a Function ===
#Click '''Designer > Logic > Functions > New Function'''
#Complete the following required information
#;Title:Name of the Function
#;Function Name:Programmatic name of the Function; Only alphanumeric characters and underscore allowed; In this example, enter: add_task
#;Description:Description of the function, how it works, circumstances for use
#;Function Button: Optionally, add a function from a list of predefined functions, defined in [[Java API]]
#Enter the code into the editing area, then click the [Save] button to save the code
-->
=== Edit an Existing Function ===
# Click '''Designer > Logic > Functions'''
# Select the function to edit
#Edit the following fields:
#;Title:Name of the Function
#;Function Name:Programmatic name of the Function; Only alphanumeric characters and underscore allowed; In this example, enter: add_task
#;Description:Description of the function, how it works, circumstances for use
#;Function Button: Optionally, add a function from a list of predefined functions, defined in [[Java API]]
#Edit the code in the editing area, then click the [Save] button to save the code or click [Cancel] to stop the process
 
=== Delete an Existing Function ===
# Click '''Designer > Logic > Functions'''
# Click the name of the function to delete
# Click the [Delete] button or click [Cancel] to stop the process
 
== Function Code Samples ==
{{Deprecated|Functions have been deprecated. Use methods in Java [[Class]]es, instead.}}
 
These code samples illustrate Functions. The comments embedded in the code samples explain the functionality.
 
===Log Activity===
This example logs an activity for a given object identifier and activity identifier.
<syntaxhighlight lang="java" enclose="div">
Functions.debug("Function: logActivity");
Parameters params = Functions.getParametersInstance();
params.add("subject", "Subject : Adding log call via function");
params.add("description", " This is a log call added via function");
params.add("status", "In Progress");
params.add("sales_notes", "Confirmed the project amount with the contact");
params.add("action_type", "Email");
params.add("contact_id", "2015353331");
//If you had a custom field in your Task object
//Go to the link Objects » Tasks to get the field name
//The display name of the custom field should not be used to update the field
//Get the name of custom field to udpate the field
params.add("custom11", "custom field update using function");
params.add("activity_type", "Fax");
params.add("notes", "Functions - logactivity");
Result result = Functions.logActivity("Adding an activity using logActivity via Custom Code", functionParams.get("object_id"), functionParams.get("id"),getEnv(ENV.USER.ID), params);
Functions.debug("Result from logActivity:" + result.getMessage());
return result.getMessage();
</syntaxhighlight>
 
 
===Close Tasks with Status Equal to In Progress===
This example finds all the tasks whose <tt>status</tt> field contains "In Progress" for a given record identifier and changes the status to "Completed".
 
<syntaxhighlight lang="java" enclose="div">
//This function closes tasks related to any record in any object
Functions.debug("Object :" + functionParams.get("object_id")+
    "\n Function : Search And Update Tasks for :"+ functionParams.get("record_id"));
String recId = functionParams.get("record_id");
//Search for all tasks that are associated with the CASE object
//The search filter is hard coded here to look for case
//But you can pass the search string dynamically to your Parameters
//object when you call this function   
Result result = Functions.searchRecords("TASK", "record_id,subject,status", "reference_type contains 'CASE'");
int resultCode = result.getCode();
Functions.debug(functionParams.get("object_id")+":Result message for searching TASKS is " + result.getMessage());
Functions.debug(functionParams.get("object_id")+" :Result code for searching TASKS is " + resultCode);
if(resultCode < 0)
{
    // Some error happened.
    String msg = "Related Tasks could not be retrieved";
    Functions.debug(msg + ":\n" + result.getMessage());  // Log details
    Functions.throwError(msg + ".");                    // Error dialog
}
else if(resultCode == 0)
{
  // No records found. Take action according to your business logic
  Functions.debug(functionParams.get("object_id")+" : No TASKS found using the search function.");
}
else
{
    //Records retrieved successfully
    Functions.debug("Number of tasks found using search function:" + resultCode);
    //Iterate through the set of records found
    ParametersIterator iterator = result.getIterator();
    //Work with all the records retrieved using searchRecords API in a while loop
    while(iterator.hasNext())
    {
      // Take action according to your business logic
      //Get the records using the Iterator object in to Parameter object
 
      Parameters params = iterator.next();
      String taskID = params.get("record_id");
      Functions.debug(" TASK: TASKID is " + taskID);
      String subjectInfo = params.get("subject");
      Functions.debug(" Task Subject is: " + subjectInfo);
      String taskStatus = params.get("status");
      Functions.debug(" Task Status is " + taskStatus);
      //We need to check for the status of the task
      //If the task is 'In Progress', we will update it
      if(taskStatus.equals("In Progress")) {
        Result getRecordResult = Functions.getRecord("TASK", "subject,status,reference_id,reference_type", taskID);   
        Functions.debug("Result from getRecord:\n" + getRecordResult.getMessage());
        Functions.debug("Reference Id from getRecord: " + (getRecordResult.getParameters()).get("reference_id"));
        params.add("status", "Completed");
        params.add("end_flag", 1);
        params.add("ownerID", Functions.getEnv(ENV.USER.ID));
        params.add("assigned_id", Functions.getEnv(ENV.USER.ID));
        params.add("description", "Check Activity history for Completed tasks. ");
        params.add("subject", "Completing Tasks on Case Close!");   
        params.add("date_modified", new Date());
        params.add("action_type", "Email");
        //Check to see if the reference ID of the task
        //Update the task only if the reference Id matches the current record ID       
        if(((getRecordResult.getParameters()).get("reference_id")).equals(recId))
        {
          Functions.debug("Related Task found!");
          Result updateTaskResult = Functions.updateRecord("TASK", taskID, params);   
          Functions.debug("Update Task Result:" + updateTaskResult.getMessage());
        }
      }
  }
}
</syntaxhighlight>
 
 
===Add and Update an Event===
This example adds an event for a given object identifier.
 
<syntaxhighlight lang="java" enclose="div">
Functions.debug("Function : Add & Update Event");
Parameters params = Functions.getParametersInstance();
params.add("reference_id", functionParams.get("record_id"));
params.add("reference_type", functionParams.get("object_id"));
params.add("description", "Check your calendar to make sure the event is recorded.");
params.add("start_date", new Date());
params.add("subject", "Calender - adding an appointment");
// the following line is optional;
// it demonstrates how you can use the getEnv function to retrieve the USER values
params.add("assigned_to", Functions.getEnv(ENV.USER.ID));
 
Result result = Functions.addEvent("Meeting! " + functionParams.get("object_id"),
    Functions.getEnv(ENV.USER.ID), new Date(), 11, 15, 30, params);
Functions.debug("Result of addEvent: " + result.getMessage());
 
if(result.getCode() != -1)
{
  // Some code to populate the eventID. 
  //eventId is required to use updateEvent
  String eventID = result.getID();
  Functions.debug("Event ID for event added using addEvent:" + eventID);
  // code to add description to the Event.
  params.add("subject", "Weekly status meeting!!");
  Result result2 = Functions.updateEvent(eventID, params);
  Functions.debug("Result from updateEvent:" + result2.getMessage());
}
else
{
  Functions.debug("Error in adding event" + result.getID());
}
</syntaxhighlight>
 
 
===Add an Opportunity===
This example adds an opportunity record.
 
<syntaxhighlight lang="java" enclose="div">
//An opportunity can be added to an account or to a contact or prospect
Parameters params = Functions.getParametersInstance();
params.add("name", "Opportunity-" + new Date());
params.add("close_date", new Date());
params.add("stage","Prospecting");
//Associating the opportunity with a contact
//Make sure you modify the record ID in the next line
//of code to match your CONTACT's record ID
params.add("contact_id", "1072726531");
 
//The following lines of code show how to update lookup fields
//Lookup fields can be updated
//during an add operation but the key-value pair should be the
//lookup field name and the record ID of the record
//'lookuptotestcustomizations' is the record identifier of a user-defined lookup field
//'account_id' is the record identifier of a system-defined lookup field
params.add("lookuptotestcustomizations", "1637926708");
params.add("account_id", "2101896782");
 
//Relate the opportunity to the ACCOUNT object using the function
params.add("related_to_type", "ACCOUNT");
 
//The record ID of the ACCOUNT object is being hard coded here
params.add("related_to_id", "2101896782");
 
if(!params.equals(""))
{
  Result addRecResult = Functions.addRecord("OPPORTUNITY_V2", params);
  Functions.debug("Opportunity Add Record:" + addRecResult);
  if(addRecResult.getCode() != 0)
  {
      String msg = "Error adding Opportunity";
      Functions.debug(msg + ":\n" + addRecResult.getMessage());  // Log details
      Functions.throwError(msg + ".");                    // Error dialog
  }
  else
  {
      Functions.debug("Success on adding an Opportunity");
      requestParams.add("opportunity_id",addRecResult.getID());
  }
}
else
{
Functions.debug("Parameters object is null.");
}
</syntaxhighlight>
 
===Send an Email Message with a Template===
This example shows how to use the <tt>sendEmailUsingTemplate</tt> Java API call to send an email message with a template.
 
<syntaxhighlight lang="java" enclose="div">
String attachmentIdList = "";
Functions.debug("Within contract object");
 
// To associate the sendEmail activity to a particular record
//Retrieve the record ID from the functionParams object
String recordID = functionParams.get("id");
 
//Retrieve the object ID from the funtionParams object
String objectID = functionParams.get("object_id");
 
//Log the record ID to the log
Functions.debug("Record ID of record from current object : " + recordID);
 
//Make the API call by passing the appropriate parameters
//For parameter explanations, check the JAVA API
Result result = Functions.sendEmailUsingTemplate(objectID, recordID, "mia@financiocorp.com", "mia@financiocorp.com", "Testing sendEmail Using Template", "1869974057twn1678149854", "", "");
 
Functions.debug("Post sendEmail API call from current object: " + objectID);
if(result.getCode() != 0)
    Functions.debug("Error in sending email!" + result.getMessage());
else
    Functions.debug("Success on sendEmail, check inbox : " + result.getMessage());
</syntaxhighlight >
 
===Add Note and Relate it to a Record===
This function adds a note to a record in an object.
 
<syntaxhighlight lang="java" enclose="div">
Parameters noteParams = Functions.getParametersInstance();
noteParams.add("description", "Very important to keep track of what is going on using Notes.");
noteParams.add("title", "Add Notes!");
noteParams.add("reference_id", requestParams.get("record_id"));
noteParams.add("reference_type", requestParams.get("object_id");
 
//Currently the sample is relating the note to an object which has 'name' as an identifier field, for example, the 'name' field in the Account object
noteParams.add("reference_name", requestParams.get("name");
Result addNote = Functions.addRecord("NOTE", noteParams);
Functions.debug("Result of adding a NOTE:" + addNote.getMessage());
Functions.debug("Code from adding a note:" + addNote.getCode());
</syntaxhighlight >

Revision as of 00:26, 9 February 2012

Warn.png

DEPRECATED: The AJAX APIs are deprecated. They continue to work, for backward compatibility, but they are not being extended or enhanced. (Web pages should use AJAX and REST to carry on a conversation with the server, rather than the deprecated AJAX APIs.)


For information on this deprecated functionality, see the version 8.0 platform docs:
https://agileappscloud.info/lj80/index.php?title=Functions