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From "Sethuraman Ramasubramanian (JIRA)" <j...@apache.org>
Subject [jira] Created: (TORQUE-142) MYSQL - default timestamp set to current_timestamp generates classes incorrectly
Date Fri, 13 Aug 2010 09:55:17 GMT
MYSQL - default timestamp set to current_timestamp generates classes incorrectly
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                 Key: TORQUE-142
                 URL: https://issues.apache.org/jira/browse/TORQUE-142
             Project: Torque
          Issue Type: Bug
          Components: Generator
    Affects Versions: 3.3
         Environment: Windows
            Reporter: Sethuraman Ramasubramanian


Recently I changed all the tables in my database to include an updated_ts column.

I have the timestamp column in mysql defined as 
`updated_ts` TIMESTAMP NOT NULL DEFAULT now() ON UPDATE NOW(), this is the same as 
`updated_ts` TIMESTAMP NOT NULL DEFAULT current_timestamp ON UPDATE current_timestamp

When I generate the XML from the DB, I get the below generated. Please look at the last column.
<table name="address">
        <column name="address_id" primaryKey="true" required="true"
            size="20" type="VARCHAR"/>
        <column name="address_ln_1" required="true" size="150" type="VARCHAR"/>
        <column name="address_ln_2" size="150" type="VARCHAR"/>
        <column name="city" required="true" size="100" type="VARCHAR"/>
        <column name="state" required="true" size="2" type="CHAR"/>
        <column name="pincode" required="true" size="8" type="CHAR"/>
        <column name="email_id" size="100" type="VARCHAR"/>
        <column default="India" name="country" required="true" size="45" type="VARCHAR"/>
        <column default="CURRENT_TIMESTAMP" name="updated_ts"
            required="true" type="TIMESTAMP"/>
    </table>

Now when I generate the OM classes I get the Address object generated with the below line:
 private Date updatedTs = new Date(CURRENT_TIMESTAMP);

This results in a compilation error. 

My questions are:
1. Are default timestamp values supported in Torque?
2. How about the "on update" clause? If a column has an on update clause, will Torque ignore
it and just send an update statement with the column to the database. This would result in
some issues, for example if I selected a row from the table and changed some values. I then
call save(), then the updated timestamp will not get updated because it already has a value
in it. Is there anyway I can change Torque in a common place to set the value to be null,
if the column name is updated_ts. This would solve this problem.

Any help is highly appreciated.


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