From dce9eb7ecb444e23ddab7c37df85624f361d2e58 Mon Sep 17 00:00:00 2001
From: Vital Ryabchinskiy <vital.ryabchinskiy@gmail.com>
Date: Wed, 28 Aug 2019 07:19:10 +0000
Subject: [PATCH] Support dependent collection delete_all

---
 .DS_Store                                        | Bin 6148 -> 0 bytes
 .../associations/document_relation/dependent.rb  |  10 ++++++++--
 lib/active_mongoid/associations/metadata.rb      |   2 +-
 3 files changed, 9 insertions(+), 3 deletions(-)
 delete mode 100644 .DS_Store

diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 131b5bd742439d683e0e56ef83cc41faa2cc7f4d..0000000000000000000000000000000000000000
GIT binary patch
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diff --git a/lib/active_mongoid/associations/document_relation/dependent.rb b/lib/active_mongoid/associations/document_relation/dependent.rb
index 06bcfd5..548049e 100644
--- a/lib/active_mongoid/associations/document_relation/dependent.rb
+++ b/lib/active_mongoid/associations/document_relation/dependent.rb
@@ -10,8 +10,14 @@ def dependent_documents(metadata)
             if metadata.dependent
               dependent_method = :"dependent_documents_for_#{metadata.name}"
               define_method(dependent_method) do
-                relation = get_document_relation(metadata.name, metadata, nil, true)
-                Array(relation).each { |d| d.send(metadata.dependent) }
+                if metadata.dependent.to_sym == :delete_all
+                  type = attributes[metadata.inverse_type]
+                  target = metadata.builder(self, send(metadata.key)).build(type)
+                  target.delete_all
+                else
+                  relation = get_document_relation(metadata.name, metadata, nil, true)
+                  Array(relation).each { |d| d.send(metadata.dependent) }
+                end
               end
 
               before_destroy dependent_method
diff --git a/lib/active_mongoid/associations/metadata.rb b/lib/active_mongoid/associations/metadata.rb
index dc2104e..c5bad8d 100644
--- a/lib/active_mongoid/associations/metadata.rb
+++ b/lib/active_mongoid/associations/metadata.rb
@@ -197,7 +197,7 @@ def dependent
       end
 
       def destructive?
-        @destructive ||= (dependent == :delete || dependent == :destroy)
+        @destructive ||= (dependent == :delete || dependent == :destroy || dependent == :delete_all)
       end
 
       def polymorphic?