Class: Tasker::WorkflowStepEdge

Inherits:
ApplicationRecord show all
Defined in:
app/models/tasker/workflow_step_edge.rb

Class Method Summary collapse

Methods inherited from ApplicationRecord

configure_database_connections, database_configuration_exists?

Class Method Details

.create_edge!(from_step, to_step, name) ⇒ Object



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# File 'app/models/tasker/workflow_step_edge.rb', line 18

def self.create_edge!(from_step, to_step, name)
  create!(from_step: from_step, to_step: to_step, name: name)
end

.sibling_sql(step_id) ⇒ Object



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# File 'app/models/tasker/workflow_step_edge.rb', line 22

def self.sibling_sql(step_id)
  sanitized_id = connection.quote(step_id)
  "    WITH step_parents AS (\n      SELECT from_step_id\n      FROM tasker_workflow_step_edges\n      WHERE to_step_id = \#{sanitized_id}\n    ),\n    potential_siblings AS (\n      SELECT to_step_id\n      FROM tasker_workflow_step_edges\n      WHERE from_step_id IN (SELECT from_step_id FROM step_parents)\n      AND to_step_id != \#{sanitized_id}\n    ),\n    siblings AS (\n      SELECT to_step_id\n      FROM tasker_workflow_step_edges\n      WHERE to_step_id IN (SELECT to_step_id FROM potential_siblings)\n      GROUP BY to_step_id\n      HAVING ARRAY_AGG(from_step_id ORDER BY from_step_id) =\n            (SELECT ARRAY_AGG(from_step_id ORDER BY from_step_id) FROM step_parents)\n    )\n    SELECT e.*\n    FROM tasker_workflow_step_edges e\n    JOIN siblings ON e.to_step_id = siblings.to_step_id\n  SQL\nend\n".squish