Amazing! Thanks!
On Tuesday, November 8, 2016 at 10:35:49 AM UTC-5, Jeremy Evans wrote:
>
> On Tuesday, November 8, 2016 at 7:30:07 AM UTC-8, David Lazar wrote:
>>
>> Hi,
>>
>> I have a JSONB column in my model. in that column I store a hash. An ID
>> points to a value. So a basic example of my Hash is...
>>
>> '{ "111' => 1, '2222' => 2, '321' => 33 }'
>>
>> The messy part for me is getting at the values... by searching for the
>> key. I am not sure I am liking my approach, so am looking for something
>> clean...
>>
>> My JSONB Column is :number_sold, so I start with a simple assignment:
>>
>> *jb = Sequel.pg_jsonb_op(:number_sold)*
>>
>> Now I want to do a query on my Model for the key I am interested in, say
>> '2222', and I want that value, 2.
>>
>> If I run the following query it works where an item.product_id will be
>> 2222.
>>
>>
>> *MyModel.select(jb.get_text(item.product_id.to_s)).first!.values[:"?column?"]*
>>
>> Sequel returns an object with @values set to :"?column?" => "2"
>>
>> So this is now... ugly as heck in my books... is there a more elegant way
>> to store a key:value pair in PG and use Sequel to view/update the hash...
>> it seems to work fine... but I am not comfortable with this
>> .first!.values[;"?column?"] business.
>>
>
> Just alias the column:
>
>
> *MyModel.select(jb.get_text(item.product_id.to_s).as(:foo)).first!.values[:foo]*
>
> *However, it may be better to just use #get:*
>
> *MyModel.get(jb.get_text(item.product_id.to_s))*
>
> Thanks,
> Jeremy
>
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