问题
I updated from RoR 4.0.4 to 4.1.1 to apply the latest security patch and it appears pg_search broke.
Here's a error:
PG::SyntaxError: ERROR: syntax error at or near "AS" LINE 1: ...sh', ''' ' || unaccent('banner') || ' ''')), 0))) AS pg_sear...
I'm searching via ajax but i don't think that is the issue based on the output above. I'm also using will_paginate but the branch I'm using is supposed to fix previous issues with rails 4.1.x and pg_search.
gem 'will_paginate', :git => 'https://github.com/nazgum/will_paginate.git' #until rails 4.1 will_paginate fixed
This is the code model where i'm executing the search:
include PgSearch
pg_search_scope :search, against: [:title, :body],
using: {tsearch: {dictionary: "english"}},
ignoring: :accents
def self.text_search(query)
if query.present?
search(query)
else
scoped
end
end
Everything was working prior to the RoR version bump - hoping someone might have some advice.
Here's the full stacktrace:
: SELECT COUNT("photos".*, ((ts_rank((to_tsvector('english', unaccent(coalesce("photos"."description"::text, ''))) || to_tsvector('english', unaccent(coalesce(pg_search_3b58f11462e6f0086ceffb.pg_search_dc60169d7766a303bd09de::text, '')))), (to_tsquery('english', ''' ' || unaccent('"banner"') || ' ''')), 0))) AS pg_search_rank) FROM "photos" LEFT OUTER JOIN (SELECT "photos"."id" AS id, string_agg("products"."name"::text, ' ') AS pg_search_dc60169d7766a303bd09de FROM "photos" INNER JOIN "products" ON "products"."id" = "photos"."product_id" GROUP BY "photos"."id") pg_search_3b58f11462e6f0086ceffb ON pg_search_3b58f11462e6f0086ceffb.id = "photos"."id" WHERE "photos"."placement" = 'showcase' AND (((to_tsvector('english', unaccent(coalesce("photos"."description"::text, ''))) || to_tsvector('english', unaccent(coalesce(pg_search_3b58f11462e6f0086ceffb.pg_search_dc60169d7766a303bd09de::text, '')))) @@ (to_tsquery('english', ''' ' || unaccent('"banner"') || ' ''')))) AND "photos"."is_active" = 't':
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回答1:
@supports.count(:all) should work, the @supports.count syntax got deprecated in rails 4.1.1
回答2:
There is a good conversation here to clarify the problem.
回答3:
This is weird - when i call
=@supports.count
the error is generated but it is a valid object. It's a bit hacky but this is working for now:
=@supports.to_a.count
来源：https://stackoverflow.com/questions/23523356/rails-4-1-1-w-pg-search-pgsyntaxerror-error-syntax-error-at-or-near-as