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    <p><strong>It is possible.</strong></p> <p>You have to manually do something that :include does internally. It means integrating with AR internal API, which is not something you normally wish to do - it can break at any time when you're upgrading Rails. </p> <p>This means you should:</p> <ol> <li>instantiate Conversation objects manually from query result</li> <li>attach loaded Conversation objects to the association in Message objects</li> </ol> <p>Altough I suggest splitting into two queries, so that the you load Conversation objects through a second query - based on the conversation ids you get in the first query. It is better for performance in most cases. After that you just need attach loaded objects into association of Message objects.</p> <p>To give you a rough example of the logic:</p> <pre><code># complex query to load messages and conversation ids messages = Message.find(...) # parse the loaded conversation ids out of resulting Message objects con_ids = messages.map {...} # load conversation objects through 2nd query conversations = Conversations.find(con_ids) # group conversations by message id con_by_message = conversations.group_by(&amp;:message_id) # attach conversations into associations of Message objects messages.each {|m| m.conversations.target = con_by_message[m.id] || [] } </code></pre> <p>This is something that worked for has_many associations in Rails. I can't tell you if setting association.target is enough for habtm associations - you should digg up that in the source...</p>
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    1. POLoad several ActiveRecord models in one query
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    1. USjurglic
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    1. COSure, that's what I'm doing actually. But I'm afraid about some Rails treatment on big datas (like group_by)... This is why I was looking for some function of ActiveRecord, which can instanciate an already-existing object. `new` can not work (it will be a new_record) ; `create` either (will create an other objet)...
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    2. COTry looking at what Rails is doing... https://github.com/rails/rails/blob/2-3-stable/activerecord/lib/active_record/base.rb If you could do something that #find_by_sql does: connection.select_all(sanitize_sql(sql), "#{name} Load").collect! { |record| instantiate(record) }
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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