When i run the external method in plone site, it shows errors.
 
The error shows.
 

Site Error

An error was encountered while publishing this resource.

Error Type: AttributeError
Error Value: portal_memberdata

 

The following is the codings used in external methon.
 
    # make heading row
    row = makeRow()
    row[0] = 'member_id'
    row[1] = 'password'
    writer.writerow(row)
   
    for member in self.portal_membership.listMembers():
       
        # make row for each member full of blank values
        row = makeRow()
        member_id = member.getId()
        user = acl_users.getUser(name=member_id)
        password = user._getPassword()
        row[0] = member_id
        row[1] = password
        writer.writerow(row)

    request.RESPONSE.setHeader('Content-Type','application/csv')
    request.RESPONSE.setHeader('Content-Length',len(text.getvalue()))
    request.RESPONSE.setHeader('Content-Disposition','inline;filename=%smembers.csv' %
                                time.strftime("%Y%m%d-%H%M%S-",time.localtime()))
    return text.getvalue()
 
 
 


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