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20 lines
944 B
SQL
20 lines
944 B
SQL
create view community_view as
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select *,
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(select name from user_ u where c.creator_id = u.id) as creator_name,
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(select name from category ct where c.category_id = ct.id) as category_name,
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(select count(*) from community_follower cf where cf.community_id = c.id) as number_of_subscribers,
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(select count(*) from post p where p.community_id = c.id) as number_of_posts,
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(select count(*) from comment co, post p where c.id = p.community_id and p.id = co.post_id) as number_of_comments
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from community c;
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create view community_moderator_view as
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select *,
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(select name from user_ u where cm.user_id = u.id) as user_name,
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(select name from community c where cm.community_id = c.id) as community_name
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from community_moderator cm;
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create view community_follower_view as
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select *,
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(select name from user_ u where cf.user_id = u.id) as user_name,
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(select name from community c where cf.community_id = c.id) as community_name
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from community_follower cf;
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