I am trying to decrement a number field. I am trying to use the following script to do so as a post function. However, the number is not decrementing. What am I doing wrong?
import com.atlassian.jira.ComponentManager;
import com.atlassian.jira.issue.CustomFieldManager;
import com.atlassian.jira.issue.fields.CustomField;
import com.atlassian.jira.issue.IssueManager;
import com.atlassian.jira.issue.Issue;
com.atlassian.jira.issue.MutableIssue;
// gets a reference to the IssueManager and CustomFieldManager manager classes
IssueManager issueManager = ComponentManager.getInstance().getIssueManager();
CustomFieldManager customFieldManager = ComponentManager.getInstance().getCustomFieldManager();
// gets a reference to the desired issue and custom field
CustomField customField_count1 = customFieldManager.getCustomFieldObjectByName( "Number of Code Defects" );
CustomField customField_count2 = customFieldManager.getCustomFieldObjectByName( "Number of Requirement Defects" );
// retrieves the custom field value object from the issue
Object count1 = issue.getCustomFieldValue( customField_count1 ) - 1;
Object count2 = issue.getCustomFieldValue( customField_count2 ) - 1;
issue.setCustomFieldValue(customField_count1, count1);
issue.setCustomFieldValue(customField_count2, count2);