Thanks
I have each field as unique so they are not composite that means I am in
right direction.
Now what you say about composite key I think that will be valid for
primary key also. I also have primary key in the table 'id' which user
doesn't have to enter. To ensure any sql exception in createCustomer()
method I am catching SQLException and throwing new custom exception. In
my calling action class I am mapping error message for this exception.
But when I call this action class using AJAX its always returning as
success case even when I sending duplicate ID (I am not sending this id
from form. I have hardcoded). I think this is because action call
doesn't send failure status if exception occur. Am i correct? If no what
I am missing? If yes then what will be solutionfor these problems?
Anjib
On 12/14/2011 3:31 PM, Eric Reed wrote:
By saying both code and name are unique... is this a composite key that must be
unique or do both fields have to be unique? If it is the composite key that
must be unique than I would skip the checks and catch the exception when
thrown. Otherwise if each field must be unique then you need to validate each
one and your design/logic is fine.
Anjib Mulepati<anji...@hotmail.com> 12/14/2011 3:21 PM>>>
Hi All,
I have question regarding use of validate() method in Struts 1.3.8.
I have simple form to collect couple of information (e.g. code and name)
and have to add them to the Database. All database operations are
handled by my DAO layer.
Both code and name are unique in Database. So I want to validate code
and name before calling INSERT SQL statement.
Three methods I have in DAO layer are
- Cutomer findByCode(String code);
- Customer findByName (String name);
- void createCustomer (Cutomer cust);
So I am calling first two methods in validate() method and third one in
execute() method.
Is this a good way to do validation before inserting the record? Or
there is better logic/design than this?
I will be glad if anyone can answer my curiosity.
Thanks,
Anjib
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