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PONested searching in SunSpot Solr
 

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    <p>I am trying to implement a Solr based search for a message thread. Each message can have many replies(The replies can be ONLY one level deep.). I want to retrieve the parent messages with content matching the search key OR replies matching the search key.</p> <p>E.g:</p> <pre><code>Hello Jack Hello Janice How are you? .. I am Janice How are you? Welcome to the Jungle Nothing better to do. </code></pre> <p>Searching for <code>Janice</code> should return the following resultset:</p> <pre><code>Hello Jack # one of the child messages matches the key word I am Janice # parent message matched the keyword) </code></pre> <p>My model is as follows:</p> <pre><code>class Message &lt; ActiveRecord::Base belongs_to :parent, :class_name =&gt; "Message" has_many :replies, :class_name =&gt; "Message", :foreign_key =&gt; :parent_id # content searchable do text :content integer :parent_id end end </code></pre> <p>What is the DSL syntax for specifying nested subquery like conditions?</p> <p><strong>Edit 1</strong></p> <p>I considered creating a compound text index field for holding all the indexes. But this approach is not viable in my scenario as I have to ensure that replies match certain additional criteria.</p> <pre><code>class Message &lt; ActiveRecord::Base belongs_to :parent, :class_name =&gt; "Message" has_many :replies, :class_name =&gt; "Message", :foreign_key =&gt; :parent_id belongs_to :category # content searchable do text :content integer :category_id integer :parent_id end end </code></pre> <p>In the above model, I want to restrict the text search to a given category.</p>
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