[Haskell-cafe] ANN: Groundhog-inspector, a tool for generating datatypes from database

[Boris Lykah]

Thanks for the report. Can you please send the SQL definition of
public.itrd_test? Looking at the code I think that it might have indexes
with expressions.

On Sat, Dec 27, 2014 at 12:43 AM, <info at rotnetix.com> wrote:

> Looks like a great idea.  I tried it on one of my databases and got the
> following error:
>
> ** Exception: mkUniqueKeyPhantomName: (Just "public","itrd_test")uniques
> list must be not empty
>
> Do you know what that might mean?
>
> On Friday, December 5, 2014 4:07:34 AM UTC+11, Boris Lykah wrote:
>>
>> Hello everyone,
>>
>> I am pleased to announce groundhog-inspector. It analyzes database schema
>> and creates corresponding datatypes and mapping configuration for
>> Groundhog. It works with PostgreSQL, MySQL, and Sqlite. Composite keys,
>> constraints, references across schemas, and other details of schema are
>> reflected in the output. Groundhog-inspector can be used as a library and
>> provides a standalone tool for simple scenarios.
>>
>> Here is an example of the standalone tool usage. JSON mapping in the
>> output was manually converted to YAML for brevity.
>>
>> $ sqlite3 dbfile "CREATE TABLE mytable (id INTEGER PRIMARY KEY NOT NULL,
>> str VARCHAR NOT NULL, ref INTEGER references mytable)"
>>
>> $ groundhog_inspector sqlite dbfile
>>
>> data Mytable
>>     = Mytable {mytableStr :: String,
>>                mytableRef :: (Maybe (AutoKey Mytable))}
>>
>> - entity: "Mytable"
>>   dbName: "mytable"
>>   constructors:
>>     - name: "Mytable"
>>       fields:
>>         - name: "mytableStr"
>>           dbName: "str"
>>         - name: "mytableRef"
>>           dbName: "ref"
>>
>> * [Hackage] (http://hackage.haskell.org/package/groundhog-inspector)
>> * [GitHub] (https://github.com/lykahb/groundhog/tree/master/
>> groundhog-inspector/examples)
>>
>> I would be happy to answer the questions. Enjoy!
>>
>> Regards,
>> Boris Lykah
>>
>
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>


-- 
Regards,
Boris
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