method
find
v4.2.1 -
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Class: ClassMethods
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find(*ids)
public
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# File activerecord/lib/active_record/core.rb, line 126 def find(*ids) # :nodoc: # We don't have cache keys for this stuff yet return super unless ids.length == 1 # Allow symbols to super to maintain compatibility for deprecated finders until Rails 5 return super if ids.first.kind_of?(Symbol) return super if block_given? || primary_key.nil? || default_scopes.any? || current_scope || columns_hash.include?(inheritance_column) || ids.first.kind_of?(Array) id = ids.first if ActiveRecord::Base === id id = id.id ActiveSupport::Deprecation.warn( You are passing an instance of ActiveRecord::Base to `find`. Please pass the id of the object by calling `.id`.squish) end key = primary_key s = find_by_statement_cache[key] || find_by_statement_cache.synchronize { find_by_statement_cache[key] ||= StatementCache.create(connection) { |params| where(key => params.bind).limit(1) } } record = s.execute([id], self, connection).first unless record raise RecordNotFound, "Couldn't find #{name} with '#{primary_key}'=#{id}" end record rescue RangeError raise RecordNotFound, "Couldn't find #{name} with an out of range value for '#{primary_key}'" end