Module: Legion::Extensions::Apollo::Helpers::GraphQuery

Defined in:
lib/legion/extensions/apollo/helpers/graph_query.rb

Constant Summary collapse

SPREAD_FACTOR = 
0.6
DEFAULT_DEPTH = 
2
MIN_ACTIVATION = 
0.1

Class Method Summary collapse

Class Method Details

.build_semantic_search_sql(limit: 10, min_confidence: 0.3, statuses: nil, tags: nil, domain: nil) ⇒ Object 



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# File 'lib/legion/extensions/apollo/helpers/graph_query.rb', line 47

def build_semantic_search_sql(limit: 10, min_confidence: 0.3, statuses: nil, tags: nil, domain: nil, **)
  conditions = ["e.confidence >= #{min_confidence}"]

  if statuses&.any?
    status_list = statuses.map { |s| "'#{s}'" }.join(', ')
    conditions << "e.status IN (#{status_list})"
  end

  if tags&.any?
    tag_list = tags.map { |t| "'#{t}'" }.join(', ')
    conditions << "e.tags && ARRAY[#{tag_list}]::text[]"
  end

  conditions << "e.knowledge_domain = '#{domain}'" if domain

  where_clause = conditions.join(' AND ')

  <<~SQL
    SELECT e.id, e.content, e.content_type, e.confidence, e.tags, e.source_agent,
           e.access_count, e.created_at, e.knowledge_domain,
           (e.embedding <=> $embedding) AS distance
    FROM apollo_entries e
    WHERE #{where_clause}
      AND e.embedding IS NOT NULL
    ORDER BY e.embedding <=> $embedding
    LIMIT #{limit}
  SQL
end

.build_traversal_sql(depth: DEFAULT_DEPTH, relation_types: nil, min_activation: MIN_ACTIVATION) ⇒ Object 



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# File 'lib/legion/extensions/apollo/helpers/graph_query.rb', line 14

def build_traversal_sql(depth: DEFAULT_DEPTH, relation_types: nil, min_activation: MIN_ACTIVATION, **)
  type_filter = if relation_types&.any?
                  types = relation_types.map { |t| "'#{t}'" }.join(', ')
                  "AND r.relation_type IN (#{types})"
                else
                  ''
                end

  <<~SQL
    WITH RECURSIVE graph AS (
      SELECT e.id, e.content, e.content_type, e.confidence, e.tags, e.source_agent,
             0 AS depth, 1.0::float AS activation
      FROM apollo_entries e
      WHERE e.id = $entry_id

      UNION ALL

      SELECT e.id, e.content, e.content_type, e.confidence, e.tags, e.source_agent,
             g.depth + 1,
             (g.activation * #{SPREAD_FACTOR} * r.weight)::float
      FROM graph g
      JOIN apollo_relations r ON r.from_entry_id = g.id #{type_filter}
      JOIN apollo_entries e ON e.id = r.to_entry_id
      WHERE g.depth < #{depth}
        AND g.activation * #{SPREAD_FACTOR} * r.weight > #{min_activation}
    )
    SELECT DISTINCT ON (id) id, content, content_type, confidence, tags, source_agent,
           depth, activation
    FROM graph
    ORDER BY id, activation DESC
  SQL
end