Hi Chuck,

I’ve also seen your post about subclassing JDBCPlugIn, which I’ll try shortly, 
but...

On 4 Mar 2016, at 5:31 pm, Paul Hoadley <[email protected]> wrote:
> 
> On 4 Mar 2016, at 4:59 pm, Chuck Hill <[email protected] 
> <mailto:[email protected]>> wrote:
> 
>> Ah, right, protected, I was going to mention that and got distracted.  :-)  
>> You will need to find a way to get it it to use a subclass of JDBCAdaptor.   
>> Wonder does this with ERXJDBCAdaptor.
> 
> Here’s another potential hack. I know what the keypath 
> ‘jdbc2Info.typeInfo.citext’ should look like in the connection dictionary, 
> because I can see it in there if I CREATE EXTENSION manually ahead of time. 
> Can I just pre-emptively stick that in the connection dictionary at runtime 
> if it’s not there? By which I mean I’ll try that—where and how would I do it? 
> It doesn’t have to be in the migration.

As far as I can tell, this works. This is in a migration’s upgrade() method, 
after I CREATE EXTENSION and ALTER TABLE:

// Get the model
EOModel model = ERXModelGroup.defaultGroup().modelNamed("Ident");
// Get jdbc2Info dictionary from connectionDictionary
NSMutableDictionary<String, Object> overrides = ((NSDictionary<String, Object>) 
model
                .connectionDictionary().valueForKey("jdbc2Info"))
                .mutableClone();
// Build the value we want for the typeInfo.citext key
NSDictionary<String, Object> citext = NSPropertyListSerialization
                .dictionaryForString("{defaultJDBCType = (\"OTHER\"); 
createParams = \"0\"; maxScale = \"0\"; minScale = \"0\"; isNullable = \"T\"; 
isSearchable = \"T\"; precision = \"0\"; }");
// Add the citext entry to overrides
overrides.takeValueForKeyPath(citext, "typeInfo.citext");
// Apply the overrides
EODatabaseContext.forceConnectionWithModel(model, overrides, editingContext);

Any comments on the safety/desirability of this approach, or where it sits on 
the scale of awful hacks?

Next up, PlugIn subclass.


-- 
Paul Hoadley
http://logicsquad.net/



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