Develop JavaScript to Block Analyses Based on Criteria

Whenever a user tries to run an analysis, Oracle Analytics invokes the function validateAnalysisCriteria. You can customize validateAnalysisCriteria to validate and block queries based on your own specific criteria. If the function returns true, the query runs. If the function returns false or displays a message, the query is blocked.

For example, the following is sample code for a JavaScript program called myblocking.js.

// This is a blocking function. It ensures that users select what 
// the designer wants them to.
function validateAnalysisCriteria(analysisXml)
{
   // Create the helper object
   var tValidator = new CriteriaValidator(analysisXml);
   // Validation Logic
   if (tValidator.getSubjectArea() != "Sample Sales")
      return "Try Sample Sales?";
   if (!tValidator.dependentColumnExists("Markets","Region","Markets","District"))
   {
      // If validation script notifies user, then return false
      alert("Region and District are well suited, do you think?");
      return false;
   }
   if (!tValidator.dependentColumnExists("Sales Measures","","Periods","Year"))
   return "You selected a measure so pick Year!";
   if (!tValidator.filterExists("Sales Measures","Dollars"))
   return "Maybe filter on Dollars?";
   if (!tValidator.dependentFilterExists("Markets","Market","Markets"))
   return "Since you are showing specific Markets, filter the markets.";
   var n = tValidator.filterCount("Markets","Region");
   if ((n <= 0) || (n > 3))
      return "Select 3 or fewer specific Regions";
   return true;
}

If the function returns anything other than false, the criteria is considered to be valid and the analysis runs. The function is also use to validate criteria for preview and save operations.