Commit c12bd5e8 authored by blackst0ne's avatar blackst0ne

[Rails5] Update ar5_batching initializer

parent 5ae91f32
# Port ActiveRecord::Relation#in_batches from ActiveRecord 5. # Remove this file when upgraded to rails 5.0.
# https://github.com/rails/rails/blob/ac027338e4a165273607dccee49a3d38bc836794/activerecord/lib/active_record/relation/batches.rb#L184 unless Gitlab.rails5?
# TODO: this can be removed once we're using AR5. module ActiveRecord
raise "Vendored ActiveRecord 5 code! Delete #{__FILE__}!" if ActiveRecord::VERSION::MAJOR >= 5 module Batches
# Differences from upstream: enumerator support was removed, and custom
module ActiveRecord # order/limit clauses are ignored without a warning.
module Batches def in_batches(of: 1000, start: nil, finish: nil, load: false)
# Differences from upstream: enumerator support was removed, and custom raise "Must provide a block" unless block_given?
# order/limit clauses are ignored without a warning.
def in_batches(of: 1000, start: nil, finish: nil, load: false) relation = self.reorder(batch_order).limit(of)
raise "Must provide a block" unless block_given? relation = relation.where(arel_table[primary_key].gteq(start)) if start
relation = relation.where(arel_table[primary_key].lteq(finish)) if finish
relation = self.reorder(batch_order).limit(of) batch_relation = relation
relation = relation.where(arel_table[primary_key].gteq(start)) if start
relation = relation.where(arel_table[primary_key].lteq(finish)) if finish loop do
batch_relation = relation if load
records = batch_relation.records
loop do ids = records.map(&:id)
if load yielded_relation = self.where(primary_key => ids)
records = batch_relation.records yielded_relation.load_records(records)
ids = records.map(&:id) else
yielded_relation = self.where(primary_key => ids) ids = batch_relation.pluck(primary_key)
yielded_relation.load_records(records) yielded_relation = self.where(primary_key => ids)
else end
ids = batch_relation.pluck(primary_key)
yielded_relation = self.where(primary_key => ids) break if ids.empty?
primary_key_offset = ids.last
raise ArgumentError.new("Primary key not included in the custom select clause") unless primary_key_offset
yield yielded_relation
break if ids.length < of
batch_relation = relation.where(arel_table[primary_key].gt(primary_key_offset))
end end
break if ids.empty?
primary_key_offset = ids.last
raise ArgumentError.new("Primary key not included in the custom select clause") unless primary_key_offset
yield yielded_relation
break if ids.length < of
batch_relation = relation.where(arel_table[primary_key].gt(primary_key_offset))
end end
end end
end end
......
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