Setting Priority field value based on customfield value

As the users are neglecting the description of the Priority field, a more detail custom field is created to represent the Priority field. Depending on the radio button custom field selected, the Priority field value is set.

1. Create a customfield name "Severity" at Browse >> Administration >> Issue Fields >> Custom Fields
2. Configure the radio button custom field to have a field options
3. Check the customfield ID in the Customfield table from the database by using the following SQL query:

   SELECT id FROM customfield WHERE cfname="Severity";
   

4. Modify the following javascript code so that <id> will be replaced with the id of the custom field found from the first step:

   <script type="text/javascript" charset="utf-8" id="priorityCustomFieldScript">
       function setIssuePriorityAndSubmit(e)
       {
           // set the value of the priority field here:
   	if(document.getElementById("customfield_<id>_1").checked)
   	{
   		document.getElementById("priority").selectedIndex = 0;
   	}
   	else if(document.getElementById("customfield_<id>_2").checked)
   	{
   		document.getElementById("priority").selectedIndex = 1;
   	}
   	else if(document.getElementById("customfield_<id>_3").checked)
   	{
   		document.getElementById("priority").selectedIndex = 2;
   	}
   	else if(document.getElementById("customfield_<id>_4").checked)
   	{
   		document.getElementById("priority").selectedIndex = 3;
   	}
   	else if(document.getElementById("customfield_<id>_5").checked)
   	{
   		document.getElementById("priority").selectedIndex = 4;
   	}
       }
   
       function hidePriorityAndAddSeverityHook()
       {
   	var row = document.getElementById("priorityFieldArea");
   	row.style.display = 'none';
   
   	AJS.$("#customfield_<id>_1").parents('form').submit(setIssuePriorityAndSubmit);
       }
   
       var currentLocation = window.location.href;
       if (currentLocation.indexOf('CreateIssue') > -1 || currentLocation.indexOf('EditIssue') > -1) {
           AJS.$(document).ready(hidePriorityAndAddSeverityHook);
       }
   </script>
   

5. Paste the javascript into the description of the "Severity" customfield at Browse >> Administration >> Issue Fields >> Custom Fields.

There is no need to hide or remove the 'Priority' field from the screen. The javascript code will hide the Priority field by itself.