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-rw-r--r--activerecord/lib/active_record/associations/join_dependency.rb28
1 files changed, 20 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb
index fbb4551b22..66e997c3c8 100644
--- a/activerecord/lib/active_record/associations/join_dependency.rb
+++ b/activerecord/lib/active_record/associations/join_dependency.rb
@@ -20,7 +20,7 @@ module ActiveRecord
end
def columns
- @tables.flat_map { |t| t.column_aliases }
+ @tables.flat_map(&:column_aliases)
end
# An array of [column_name, alias] pairs for the table
@@ -94,7 +94,7 @@ module ActiveRecord
#
def initialize(base, associations, joins)
@alias_tracker = AliasTracker.create(base.connection, joins)
- @alias_tracker.aliased_name_for(base.table_name, base.table_name) # Updates the count for base.table_name to 1
+ @alias_tracker.aliased_table_for(base.table_name, base.table_name, type_caster: base.type_caster) # Updates the count for base.table_name to 1
tree = self.class.make_tree associations
@join_root = JoinBase.new base, build(tree, base)
@join_root.children.each { |child| construct_tables! @join_root, child }
@@ -131,7 +131,6 @@ module ActiveRecord
def instantiate(result_set, aliases)
primary_key = aliases.column_alias(join_root, join_root.primary_key)
- type_caster = result_set.column_type primary_key
seen = Hash.new { |h,parent_klass|
h[parent_klass] = Hash.new { |i,parent_id|
@@ -143,12 +142,20 @@ module ActiveRecord
parents = model_cache[join_root]
column_aliases = aliases.column_aliases join_root
- result_set.each { |row_hash|
- primary_id = type_caster.type_cast_from_database row_hash[primary_key]
- parent = parents[primary_id] ||= join_root.instantiate(row_hash, column_aliases)
- construct(parent, join_root, row_hash, result_set, seen, model_cache, aliases)
+ message_bus = ActiveSupport::Notifications.instrumenter
+
+ payload = {
+ record_count: result_set.length,
+ class_name: join_root.base_klass.name
}
+ message_bus.instrument('instantiation.active_record', payload) do
+ result_set.each { |row_hash|
+ parent = parents[row_hash[primary_key]] ||= join_root.instantiate(row_hash, column_aliases)
+ construct(parent, join_root, row_hash, result_set, seen, model_cache, aliases)
+ }
+ end
+
parents.values
end
@@ -179,9 +186,13 @@ module ActiveRecord
def table_aliases_for(parent, node)
node.reflection.chain.map { |reflection|
+ if reflection.klass
+ type_caster = reflection.klass.type_caster
+ end
alias_tracker.aliased_table_for(
reflection.table_name,
- table_alias_for(reflection, parent, reflection != node.reflection)
+ table_alias_for(reflection, parent, reflection != node.reflection),
+ type_caster: type_caster,
)
}
end
@@ -250,6 +261,7 @@ module ActiveRecord
construct(model, node, row, rs, seen, model_cache, aliases)
else
model = construct_model(ar_parent, node, row, model_cache, id, aliases)
+ model.readonly!
seen[parent.base_klass][primary_id][node.base_klass][id] = model
construct(model, node, row, rs, seen, model_cache, aliases)
end