MySQL Lookup on multiselect checkbox data

cpaschen
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6 years 3 months ago #307545 by cpaschen

MySQL Lookup on multiselect checkbox data was created by cpaschen

This is a bit 'side-related' to CB.
I have data in a field within the comprofiler table from a multiselect checkbox.

So the data looks something like this:

28|*|53|*|18

The data for this was provided from a lookup on an external table.

I need to 'convert' this data into the 'textual' labels which the user selected from; HOWEVER, I need to do it within a MYSQL query.

So the result of the query for this field needs to return something like:

President, Member, Accountant

Has anyone else every done this and made it work?

BTW ... I know how to handle this IF I could use PHP, but the project I'm working on right now doesn't have that ability. It must just be a MySQL query (and no mysql custom functions).

Any ideas would be appreciated.

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krileon
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6 years 3 months ago #307555 by krileon

Replied by krileon on topic MySQL Lookup on multiselect checkbox data

Probably just need a subquery to lookup the label. Example as follows.

Code:

SELECT cb.`FIELD_NAME`
 , ( 
  SELECT GROUP_CONCAT( IF( fv.`fieldlabel` != '', fv.`fieldlabel`, fv.`fieldtitle` ) SEPARATOR ', ' )
  FROM `#__comprofiler_field_values` AS fv
  INNER JOIN `#__comprofiler_fields` AS f
  ON f.`fieldid` = fv.`fieldid`
  WHERE f.`name` = 'FIELD_NAME'
  AND FIND_IN_SET( fv.`fieldtitle`, REPLACE( cb.`FIELD_NAME`, '|*|', ',' ) ) != 0
 ) AS 'FIELD_NAME_labels'
 FROM `#__comprofiler` AS cb

Basically you've a subquery that splits the field into comma separated values for a lookup check in the field values table. Replace FIELD_NAME with the name of your field and #_ with your database prefix to give it a test. Probably better ways to do it, but I'm no database expert. If you're using language strings as labels they won't translate though as language strings are file based storage.

Kyle (Krileon)
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cpaschen
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6 years 3 months ago #307646 by cpaschen

Replied by cpaschen on topic MySQL Lookup on multiselect checkbox data

Thanks. I tried doing that but the SQL was just getting too complex to maintain (multiple multi-select fields in the query), so I've just decided to use a CB List to handle the task.

However, it would be really helpful if the CB Lists had the ability to export the resulting list as a CSV (or other format) for use offline.

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