Difference between revisions of "Using the request Object"

From AgileApps Support Wiki
imported>Aeric
imported>Aeric
Line 12: Line 12:


'''To obtain a record identifier from a <tt>request</tt> object sent by the platform:'''
'''To obtain a record identifier from a <tt>request</tt> object sent by the platform:'''
:With the object ID and record ID, use the [[Java_API:Record_Handling#getRecord|getRecord]] API to retrieve the record.
:<syntaxhighlight lang="java" enclose="div">
:<syntaxhighlight lang="java" enclose="div">
<%
<%

Revision as of 20:45, 11 January 2013

To get all of the parameters available in the request object, and their values:

<syntaxhighlight lang="java" enclose="div">

<%

 String[] params = request.getParameterValues();
 for (int i=0; i<params.length; i++)
 {
   String paramName = params[i];
   String paramValue = request.getParameter( paramName );
 }

%> </syntaxhighlight>

To obtain a record identifier from a request object sent by the platform:

With the object ID and record ID, use the getRecord API to retrieve the record.
<syntaxhighlight lang="java" enclose="div">

<%

 String object_id = request.getParameter("object_id");
 String record_id = request.getParameter("record_id");

%> </syntaxhighlight>

Notepad.png

Note: Although the object_id is alphanumeric, it can be used in any API that requires an object name.

To obtain a record identifier from a request object sent by a Custom Action button:

A Custom Action button can be applied to one record, or it can be applied to several records at one time if the user took advantage of the More Actions feature in the record list view.
This code gets the record IDs and uses the searchRecords API to retrieve the records:
<syntaxhighlight lang="java" enclose="div">

<%

 // Get the object ID and the comma separated list of record IDs
 String object_id = request.getParameter("object_id");
 String selectedRecords = request.getParameter("selectedRecords"); 
 // Break the comma-separated list into record IDs. 
 // Join them with "OR" operands for use when searching for the records
 String filterCriteria = "";
 if (selectedRecords != null)
 {
   StringTokenizer st = new StringTokenizer(selectedRecords,",");
   while (st.hasMoreTokens())
   {
     if ( !"".equals(filterCriteria.trim()))
     {
        // Criteria string isn't empty, and we're adding another expression
        // Prefix the new expression with a boolean OR operator
        filterCriteria += " OR "
     }
     filterCriteria += "record_id = "+ st.nextToken();
   }
 }
 // Use the filter criteria to fetch the selected records
 // Here, we ask for the record_id and name fields
 Result results;
 results = Functions.searchRecords(object_id , "record_id,name", filterCriteria);
 int resultCode = results.getCode();
 if (resultCode < 0)
 {
    // Error occurred
 }
 else if (resultCode == 0)
 {
   // No records found. (This situation should never occur.)
 }
 else
 {
   // Records retrieved successfully
   // Process them here
   ParametersIterator iterator = results.getIterator();
   while(iterator.hasNext())
   {
     Parameters params = iterator.next();
     String recordID = params.get("record_id");
     String recordName = params.get("name");
     // Take additional action according to your business logic
   }
 }

%> </syntaxhighlight>