Module: Riveter::Query

Extended by:
ActiveSupport::Concern
Included in:
Base
Defined in:
lib/riveter/query.rb

Defined Under Namespace

Classes: Base

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/riveter/query.rb', line 6

def options
  @options
end

#query_filter ⇒ Object (readonly)

Returns the value of attribute query_filter.



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# File 'lib/riveter/query.rb', line 5

def query_filter
  @query_filter
end

#relation ⇒ Object (readonly)

Returns the value of attribute relation.



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# File 'lib/riveter/query.rb', line 7

def relation
  @relation
end

Instance Method Details

#find_each(&block) ⇒ Object

enumerates the resultset in batch mode



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# File 'lib/riveter/query.rb', line 16

def find_each(&block)
  relation.find_each_with_order(&block) if has_data?
end

#has_data? ⇒ Boolean

override if necessary in derived classes

Returns:

  • (Boolean) 


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# File 'lib/riveter/query.rb', line 21

def has_data?
  @has_data ||= relation.count() > 0
end

#initialize(query_filter, options = {}) ⇒ Object 



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# File 'lib/riveter/query.rb', line 9

def initialize(query_filter, options={})
  @query_filter = query_filter
  @options = options
  @relation = build_relation(@query_filter)
end