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-rw-r--r--activerecord/lib/active_record/relation/finder_methods.rb15
1 files changed, 12 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 8fa315bdf3..aae257a0e7 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -309,9 +309,18 @@ module ActiveRecord
def find_one(id)
id = id.id if ActiveRecord::Base === id
+ if IdentityMap.enabled? && where_values.blank? &&
+ limit_value.blank? && order_values.blank? &&
+ includes_values.blank? && preload_values.blank? &&
+ readonly_value.nil? && joins_values.blank? &&
+ !@klass.locking_enabled? &&
+ record = IdentityMap.get(@klass, id)
+ return record
+ end
+
column = columns_hash[primary_key]
- substitute = connection.substitute_for(column, @bind_values)
+ substitute = connection.substitute_at(column, @bind_values.length)
relation = where(table[primary_key].eq(substitute))
relation.bind_values = [[column, id]]
record = relation.first
@@ -343,8 +352,8 @@ module ActiveRecord
if result.size == expected_size
result
else
- conditions = arel.wheres.map { |x| x.value }.join(', ')
- conditions = " [WHERE #{conditions}]" if conditions.present?
+ conditions = arel.where_sql
+ conditions = " [#{conditions}]" if conditions
error = "Couldn't find all #{@klass.name.pluralize} with IDs "
error << "(#{ids.join(", ")})#{conditions} (found #{result.size} results, but was looking for #{expected_size})"