Comments on: Full Text Search on Heroku

By: sausheong

sausheong — Sat, 27 Feb 2010 13:09:22 +0000

Nice! I was wondering if this works with something other than ActiveRecord, for example does it work with DataMapper?

By: William

William — Wed, 10 Feb 2010 09:11:57 +0000

I get the same error as “dud3″ above, but with the model name “Address” instead of what I assume is “Business”. It seems there’s something that doesn’t like class names that end in two “s”es.

I get:
rake aborted!
uninitialized constant Addres

Any ideas?

By: mtraven

mtraven — Sun, 07 Feb 2010 17:32:24 +0000

I’m having my own problem: the migration generates but doesn’t run successfully:

mt@laptop /misc/sourceforge/oscurrency$ heroku rake db:migrate
rake aborted!
PGError: ERROR: invalid input syntax for integer: “”:
CREATE index communications_fts_idx
ON communications
USING gin((to_tsvector(‘english’, coalesce(communications.subject, ”) || ‘ ‘ || coalesce(communications.content, ”) || ‘ ‘ || coalesce(communications.recipient_id, ”))))

Hm, it this is for a class that is not indexed. It looks like another problem in the rake task. Deleting the code for this class fixed the problem.

By: mtraven

mtraven — Sun, 07 Feb 2010 04:34:00 +0000

dud3 and aaron:

The fix for your problem is to change the tasks.rb file in the gem so that pluralize is called before classify, ie:
klass = File.basename(f, ‘.rb’).pluralize.classify.constantize

By: dud3

dud3 — Sat, 06 Feb 2010 03:20:50 +0000

How do you search nested objects?

example, products has many deals.

I want to return products if deals matches the search.

By: How to convert from MySQL to Postgres « Yangtheman

How to convert from MySQL to Postgres « Yangtheman — Sat, 30 Jan 2010 07:53:08 +0000

[...] full-text search and since Heroku uses Postgres, I could use other plug-ins like acts_as_tsearch or texticle for free. Free is important to me, since it’s not making any [...]

By: Yang

Yang — Fri, 22 Jan 2010 23:32:30 +0000

I am pretty new to Postgres, but this is driving me nuts.

Everything works on console, but it’s not working at all in rails app. I tried to use some bogus query string I know will return empty list. On console, it works fine, but in rails app, it returns results from previous query…. What could be different from console and rails app????

By: Yang

Yang — Fri, 22 Jan 2010 21:13:53 +0000

Hi, great tutorial! I almost got it to work except one part.

I can search for a query on console prompt just fine, but in rails app, it gives an error.

def search
@query = params[:query]
@posts = Post.search(@query)
@total_hits = @posts.size
end

When search is performed, I get the following error.

SQL (0.0ms) PGError: ERROR: syntax error at or near “as”
LINE 2: plainto_tsquery(E’google’)) as rank) AS count_po…
^
: SELECT count(posts.*, ts_rank_cd((to_tsvector(‘english’, coalesce(posts.title, ”) || ‘ ‘ || coalesce(posts.content, ”))),
plainto_tsquery(E’google’)) as rank) AS count_posts_all_ts_rank_cd_to_tsvector_english_coalesce_posts_t FROM “posts” WHERE (to_tsvector(‘english’, coalesce(posts.title, ”) || ‘ ‘ || coalesce(posts.content, ”)) @@ plainto_tsquery(E’google’))

ActiveRecord::StatementInvalid (PGError: ERROR: syntax error at or near “as”
LINE 2: plainto_tsquery(E’google’)) as rank) AS count_po…
^
: SELECT count(posts.*, ts_rank_cd((to_tsvector(‘english’, coalesce(posts.title, ”) || ‘ ‘ || coalesce(posts.content, ”))),
plainto_tsquery(E’google’)) as rank) AS count_posts_all_ts_rank_cd_to_tsvector_english_coalesce_posts_t FROM “posts” WHERE (to_tsvector(‘english’, coalesce(posts.title, ”) || ‘ ‘ || coalesce(posts.content, ”)) @@ plainto_tsquery(E’google’)) ):
(__DELEGATION__):2:in `__send__’
(__DELEGATION__):2:in `with_scope’
app/controllers/posts_controller.rb:146:in `search’

Any clues? Also, how would you incorporate paginate into search results?

Thank you in advance.

By: dud3

dud3 — Wed, 20 Jan 2010 03:12:22 +0000

I get an error when i try to run rake texticle:migration

~/rails/business$ rake texticle:migration –trace
(in /home/dude/rails/business)
** Invoke texticle:migration (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute texticle:migration
rake aborted!
uninitialized constant Busines
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:443:in `load_missing_constant’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in `const_missing’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:92:in `const_missing’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:361:in `constantize’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in `each’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in `constantize’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/string/inflections.rb:162:in `constantize’
/usr/local/lib/ruby/gems/1.8/gems/texticle-1.0.2/lib/texticle/tasks.rb:13
/usr/local/lib/ruby/gems/1.8/gems/texticle-1.0.2/lib/texticle/tasks.rb:12:in `each’
/usr/local/lib/ruby/gems/1.8/gems/texticle-1.0.2/lib/texticle/tasks.rb:12
/usr/local/lib/ruby/gems/1.8/gems/texticle-1.0.2/lib/texticle/tasks.rb:9:in `open’
/usr/local/lib/ruby/gems/1.8/gems/texticle-1.0.2/lib/texticle/tasks.rb:9
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain’
/usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run’
/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31
/usr/local/bin/rake:19:in `load’
/usr/local/bin/rake:19

By: Glenn Roberts

Glenn Roberts — Tue, 12 Jan 2010 09:13:37 +0000

Bloody great article – just spent the last few hours looking for exactly this. You’re a champion.

Love the mullet gravatar on github – lol.