rails-postgresql

I want to do a batch insert of few thousand records into the database (POSTGRES in my case) from within my Rails App. What would be the "Rails way" of doing it? Something which is fast and also correct way of doing it. I know I can create the SQL query by string concatenation of the attributes but I want a better approach. ActiveRecord .create method supports bulk creation. The method emulates the feature if the DB doesn't support it and uses the underlying DB engine if the feature is supported. Just pass an array of options. # Create an Array of new objects User.create([{ :first_name =>

I am trying to configure PostgreSQL to use fulltext search in my rails app as mentioned in this Railscast . I am using a fresh Ubuntu 12.04 server running PostgreSQL 9.1.5 installed using apt-get with the ppa:pitti/postgresql with precise . I get the following error when trying to run the migration and when I try the same command in the psql console with the peer postgres user: postgres=# CREATE EXTENSION unaccent; ERROR: could not open extension control file "/usr/share/postgresql/9.1/extension/unaccent.control": No such file or directory In my local box running Ubuntu 10.04 desktop I use the

I get this error every this I run my Rails app (It cannot connect to my local Postgresql ) /Users/leonardo/.rvm/gems/ruby-1.9.3-p362/gems/activerecord-3.2.11/lib/ active_record/connection_adapters/postgresql_adapter.rb:1208:in `initialize': could not connect to server: No such file or directory (PG::Error) Is the server running locally and accepting connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"? I'm using Postgres.app that it's correctly running. If I run $ psql I can login properly to Postgresql console. $ which psql /Applications/Postgres.app/Contents/MacOS/bin/psql

I am working on a Ruby on Rails app. We are using a PostgreSQL database. There is a table named scores with the following columns: Column | Type --------------+----------------------- id | integer value | double precision ran_at | timestamp active | boolean build_id | bigint metric_id | integer platform_id | integer mode_id | integer machine_id | integer higher_better | boolean job_id | integer variation_id | integer step | character varying(255) I need to add a sequence to job_id (note: there is no model for job ). How do I create this sequence? Use CREATE SEQUENCE : CREATE SEQUENCE scores

I am using Postgres' json data type but want to do a query/ordering with data that is nested within the json. I want to order or query with .where on the json data type. For example, I want to query for users that have a follower count > 500 or I want to order by follower or following count. Thanks! Example: model User data: { "photos"=>[ {"type"=>"facebook", "type_id"=>"facebook", "type_name"=>"Facebook", "url"=>"facebook.com"} ], "social_profiles"=>[ {"type"=>"vimeo", "type_id"=>"vimeo", "type_name"=>"Vimeo", "url"=>"http://vimeo.com/", "username"=>"v", "id"=>"1"}, {"bio"=>"I am not a person

Everytime I run my rails 4.0 server, I get this output. Started GET "/" for 127.0.0.1 at 2013-11-06 23:56:36 -0500 PG::ConnectionBad - could not connect to server: Connection refused Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5432? could not connect to server: Connection refused Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5432? could not connect to server: Connection refused Is the server running on host "localhost" (fe80::1) and accepting TCP/IP connections on port 5432? : activerecord (4.0.0) lib