How to condition SQL WHERE - mysql

Question

I would like to condition when to GROUP_CONCAT my results. I can't figure out the way how to separate my 'category' and 'condition' results.
SELECT d.company_name AS 'organisation name',
GROUP_CONCAT(DISTINCT tag.tag) AS 'category',
GROUP_CONCAT(DISTINCT tag.tag) AS 'conditions', d.contact_describtion AS 'description', d.tel, d.tel2, d.mobile, d.email, d.email2, d.web, d.web2, d.address, d.town, d.county, d.post_code AS 'post code', IF(d.state = 1, "published", "unpublished") AS 'status',d.contact_page_notes AS 'contact history', d.last_contacted_date AS 'last contacted', d.last_updated_date AS 'last updated'
FROM jds4a_directory d INNER JOIN
jds4a_tags_resources res
on d.id = res.resource_id INNER JOIN
jds4a_tags tag
on tag.id = res.tag_id
WHERE tag.category = 'condition' OR tag.category = 'category'
GROUP BY res.resource_id
What I want to achieve is to only display category tags under the category and only display condition tags under conditions

Answer 1

Use case. You are also returning way too many columns, I think:
SELECT d.company_name AS organisation_name,
GROUP_CONCAT(DISTINCT (CASE WHEN tag.category = 'condition' THEN tag.tag END)) AS categories,
GROUP_CONCAT(DISTINCT (CASE WHEN tag.category = 'category' THEN tag.tag END)) AS conditions
FROM jds4a_directory d INNER JOIN
jds4a_tags_resources res
on d.id = res.resource_id INNER JOIN
jds4a_tags tag
on tag.id = res.tag_id
WHERE tag.category IN ('condition', 'category')
GROUP BY d.company_name;
Notes:
The SELECT columns should be consistent with the GROUP BY columns. Don't overload with extraneous columns.
GROUP BY should match the unaggregated keys/expressions in the SELECT.
Use IN instead of a bunch of ORs -- easier to maintain, write, and less prone to error.
Use single quotes for string and date constants. Don't use them for column aliases.

Answer 2

You can try below Query:
SELECT d.company_name AS 'organisation name',
GROUP_CONCAT(DISTINCT tag.tag) AS 'category',
GROUP_CONCAT(DISTINCT tag1.tag) AS 'conditions', d.contact_describtion AS 'description', d.tel, d.tel2, d.mobile, d.email, d.email2, d.web, d.web2, d.address, d.town, d.county, d.post_code AS 'post code', IF(d.state = 1, "published", "unpublished") AS 'status',d.contact_page_notes AS 'contact history', d.last_contacted_date AS 'last contacted', d.last_updated_date AS 'last updated'
FROM jds4a_directory d
INNER JOIN jds4a_tags_resources res
on d.id = res.resource_id
LEFT JOIN jds4a_tags tag
on tag.id = res.tag_id AND tag.category = 'category'
LEFT JOIN jds4a_tags tag1
on tag1.id = res.tag_id AND tag1.category = 'condition'
GROUP BY res.resource_id
Have not tried this query. But it should work. Basically you need to join on jds4a_tags table one more time with conditional tag name