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Modeling bidirectional graph edges in Rails

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Duncan Beevers

Posts: 68
Nickname: dbeevers
Registered: May, 2008

Duncan Beevers is a hack and jester building shiny baubles from bytes and tears.
Modeling bidirectional graph edges in Rails Posted: Nov 5, 2008 1:46 PM
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This post originated from an RSS feed registered with Ruby Buzz by Duncan Beevers.
Original Post: Modeling bidirectional graph edges in Rails
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It is frequently desirable to represent bidirectional relationships in web applications, and simple databases are not immediately suitable for this information. Let’s start with a simple unidirectional example that a database like MySQL handles well. User 1 wants to be friends with User 2. A row is inserted into the befriendings table with User 1 as the initiator [...]

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