Apple

On Nov 1, 2011, at 8:32 AM, Ramsey Gurley wrote:

I think this is commonly handled in a post migration

http://webobjects.mdimension.com/hudson/job/Wonder/javadoc/er/extensions/migration/IERXPostMigration.html

Just make your migration implement that interface, and the post migration method will be called after the tables are created. From the package documentation:
To perform a "post op", your migration can implement IERXPostMigration instead of IERXMigration, and this adds the additional method:
public void postUpgrade(EOEditingContext editingContext, EOModel model) throws Throwable;
So as migrations are running in dependency order, ERXMigrator keeps track of "Post Migrations", which will themselves execute in dependency order, but only after a completely successful model migration. So by the time IERXPostMigrations begin to run, all of your EOModels will match the database tables. postUpgrades also each run in a transaction. editingContext.saveChanges() will be called for you after postUpgrade is done.
Ramsey

On Nov 1, 2011, at 7:06 AM, Theodore Petrosky wrote:

I use migrations for all of my company stuff. They are great!!!!

I am running into a problem:

public void upgrade(EOEditingContext editingContext, ERXMigrationDatabase database) throws Throwable {

ERXMigrationTable workingTable = database.existingTableNamed("t_employee");

workingTable.newLargeStringColumn("c_password", true);
workingTable.newLargeStringColumn("c_user_name", true);

ERXJDBCUtilities.executeUpdate(database.adaptorChannel(), "update t_employee " +
"set c_password = '4004'");

ERXJDBCUtilities.executeUpdate(database.adaptorChannel(), "update t_employee " +
"set c_user_name = 'theuser'");

workingTable.existingColumnNamed("c_password").setAllowsNull(false);
workingTable.existingColumnNamed("c_user_name").setAllowsNull(false);

}

I get an error:

ERROR: cannot ALTER TABLE "t_employee" because it has pending trigger events

migrations doesn't like it when I try to update these two columns in one pass.

My solution is to create a migration after this one and put (obviously commenting out those lines in the first migration):

public void upgrade(EOEditingContext editingContext, ERXMigrationDatabase database) throws Throwable {

ERXMigrationTable workingTable = database.existingTableNamed("t_employee");

ERXJDBCUtilities.executeUpdate(database.adaptorChannel(), "update t_employee " +
"set c_user_name = 'theuser'");

workingTable.existingColumnNamed("c_user_name").setAllowsNull(false);

}

can this be done in one pass?

Ted

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References:
	>migrations error (From: Theodore Petrosky <email@hidden>)
	>Re: migrations error (From: Ramsey Gurley <email@hidden>)
	>Re: migrations error (From: Ramsey Gurley <email@hidden>)