request Object
From AgileApps Support Wiki
Revision as of 02:20, 18 February 2012 by imported>Aeric
The request object is available in any JSP Page. It contains information provided when the HTTP request is made. The information it contains can be used with the REST record Resource or Java Record Handling APIs to get further information from the record.
When a JSP page is invoked by an active record, the request object contains record identifiers.
Record-identifying information is available when:
- The JSP page is acting as a Print Template.
- The JSP page is acting as a Custom Control on a record form.
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>
To obtain a record identifier from a request object sent by a Custom Action button:
- 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>