Class: Gitlab::Analytics::CycleAnalytics::StageEvents::StageEvent

Inherits:
Object
  • Object
show all
Extended by:
Utils::Override
Includes:
CycleAnalytics::MetricsTables
Defined in:
lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb

Overview

Base class for expressing an event that can be used for a stage.

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Utils::Override

extended, extensions, included, method_added, override, prepended, queue_verification, verify!

Methods included from CycleAnalytics::MetricsTables

#build_table, #issue_metrics_table, #issue_table, #mr_closing_issues_table, #mr_diff_commits_table, #mr_diff_table, #mr_metrics_table, #mr_table, #projects_table, #routes_table, #user_table

Constructor Details

#initialize(params) ⇒ StageEvent

Returns a new instance of StageEvent.



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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 14

def initialize(params)
  @params = params
end

Class Method Details

.identifier ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 26

def self.identifier
  raise NotImplementedError
end

.label_based? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 68

def self.label_based?
  false
end

.name ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 18

def self.name
  raise NotImplementedError
end

Instance Method Details

#apply_negated_query_customization(query) ⇒ Object

rubocop: disable CodeReuse/ActiveRecord



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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 59

def apply_negated_query_customization(query)
  query.where(timestamp_projection.eq(nil))
end

#apply_query_customization(query) ⇒ Object

Optionally a StageEvent may apply additional filtering or join other tables on the base query.



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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 54

def apply_query_customization(query)
  query
end

#column_list ⇒ Object

List of columns that are referenced in the ‘timestamp_projection` expression Example timestamp projection: COALESCE(issue_metrics.created_at, issue_metrics.updated_at) Expected column list: issue_metrics.created_at, issue_metrics.updated_at

Raises:

  • (NotImplementedError) 


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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 49

def column_list
  raise NotImplementedError
end

#hash_code ⇒ Object 



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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 34

def hash_code
  Digest::SHA256.hexdigest(self.class.identifier.to_s)
end

#html_description(options = {}) ⇒ Object 



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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 22

def html_description(options = {})
  self.class.name
end

#include_in(query) ⇒ Object

rubocop: enable CodeReuse/ActiveRecord



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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 64

def include_in(query)
  query
end

#object_type ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 30

def object_type
  raise NotImplementedError
end

#timestamp_projection ⇒ Object

Each StageEvent must expose a timestamp or a timestamp like expression in order to build a range query. Example: get me all the Issue records between start event end end event



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# File 'lib/gitlab/analytics/cycle_analytics/stage_events/stage_event.rb', line 40

def timestamp_projection
  columns = column_list

  columns.one? ? columns.first : Arel::Nodes::NamedFunction.new('COALESCE', columns)
end