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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb5
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index 759e162e19..fd185de589 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -538,7 +538,10 @@ module ActiveRecord
# for (not necessarily the current class).
def retrieve_connection(klass) #:nodoc:
pool = retrieve_connection_pool(klass)
- (pool && pool.connection) or raise ConnectionNotEstablished
+ raise ConnectionNotEstablished, "No connection pool for #{klass}" unless pool
+ conn = pool.connection
+ raise ConnectionNotEstablished, "No connection for #{klass} in connection pool" unless conn
+ conn
end
# Returns true if a connection that's accessible to this class has