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janko.io | ||
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blog.arkency.com
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| | | | | [AI summary] The authors explain how they discovered that using Ruby's built-in .hash method for PostgreSQL advisory locks was unreliable across separate MRI processes, leading to race conditions, and detail their solution of creating a custom PostgreSQL function to generate consistent 64-bit keys. | |
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samsaffron.com
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| | | | | Sam's Spot - Sam saffron's web log | |
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tenderlovemaking.com
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| | | | | File.open('somefile.txt', 'wb') do |fh| # Open the file fh.write "hello world" # Do some work with the file end # Close file when block returns ActiveRecord::Base.establish_connection( :adapter => "sqlite", :database => "path/to/dbfile") connection_handle = ActiveRecord::Base.connection def retrieve_connection_pool(klass) pool = @connection_pools[klass.name] return pool if pool return nil if ActiveRecord::Base == klass retrieve_connection_pool klass.superclass end spec = ActiveRecord::Base.specificiation ActiveRecord::ConnectionPool.open(spec) do |conn| ... end spec = database_a ActiveRecord::ConnectionPool.open(spec) do |conn| User.find_all end spec = database_b ActiveRecord::ConnectionPool.open(spec) do |conn| User.find_all end # Retrieve the connection as... | |
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johna.compoutpost.com
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| | | With the release of Bootstrap Icons v1.2, there is now an easy-to-use web font. Here's how you can use the new web font in your web pages. | ||
