Module: Switchman::ActiveRecord::FinderMethods
- Defined in:
- lib/switchman/active_record/finder_methods.rb
Instance Method Summary collapse
- #exists?(conditions = :none) ⇒ Boolean
-
#find_one(id) ⇒ Object
find_one uses binds, so we can’t depend on QueryMethods catching it.
- #find_or_instantiator_by_attributes(match, attributes, *args) ⇒ Object
Instance Method Details
#exists?(conditions = :none) ⇒ Boolean
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# File 'lib/switchman/active_record/finder_methods.rb', line 29 def exists?(conditions = :none) conditions = conditions.id if ::ActiveRecord::Base === conditions return false if !conditions if ::Rails.version >= '4.1' relation = apply_join_dependency(self, construct_join_dependency) return false if ::ActiveRecord::NullRelation === relation else join_dependency = construct_join_dependency_for_association_find relation = construct_relation_for_association_find(join_dependency) end relation = relation.except(:select, :order).select("1 AS one").limit(1) case conditions when Array, Hash relation = relation.where(conditions) else relation = relation.where(table[primary_key].eq(conditions)) if conditions != :none end args = [relation, "#{name} Exists"] args << relation.bind_values if ::Rails.version >= '4.1' activate { return true if connection.select_value(*args) } false rescue raise if ::Rails.version >= '4.1' || !(::ActiveRecord::ThrowResult === $!) false end |
#find_one(id) ⇒ Object
find_one uses binds, so we can’t depend on QueryMethods catching it
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# File 'lib/switchman/active_record/finder_methods.rb', line 6 def find_one(id) if shard_source_value != :implicit return super(Shard.relative_id_for(id, Shard.current(klass.shard_category), primary_shard)) end local_id, shard = Shard.local_id_for(id) if shard begin old_shard_value = shard_value self.shard_value = shard super(local_id) ensure self.shard_value = old_shard_value end else super end end |
#find_or_instantiator_by_attributes(match, attributes, *args) ⇒ Object
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# File 'lib/switchman/active_record/finder_methods.rb', line 25 def find_or_instantiator_by_attributes(match, attributes, *args) primary_shard.activate { super } end |