From a7518bdba44eedc476464c0bb8abb9f4e74a46db Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Sat, 7 Oct 2017 20:48:54 -0700
Subject: [PATCH] refactor(document): add PoC of using $set internally

Re: #1939
---
 lib/document.js                  | 26 ++++++++++++++++----------
 lib/schema.js                    |  3 ++-
 lib/services/document/compile.js |  5 +++--
 3 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/lib/document.js b/lib/document.js
index 24b3336b43f..718485fdc5d 100644
--- a/lib/document.js
+++ b/lib/document.js
@@ -74,7 +74,7 @@ function Document(obj, fields, skipId, options) {
     if (this.$__original_set) {
       this.$__original_set(obj, undefined, true);
     } else {
-      this.set(obj, undefined, true);
+      this.$set(obj, undefined, true);
     }
   }
 
@@ -499,7 +499,7 @@ Document.prototype.update = function update() {
  * @api public
  */
 
-Document.prototype.set = function(path, val, type, options) {
+Document.prototype.$set = function(path, val, type, options) {
   if (type && utils.getFunctionName(type.constructor) === 'Object') {
     options = type;
     type = undefined;
@@ -548,7 +548,7 @@ Document.prototype.set = function(path, val, type, options) {
 
       if (len === 0 && !this.schema.options.minimize) {
         if (val) {
-          this.set(val, {});
+          this.$set(val, {});
         }
         return this;
       }
@@ -583,7 +583,7 @@ Document.prototype.set = function(path, val, type, options) {
         && !(this.schema.paths[pathName] &&
         this.schema.paths[pathName].options &&
         this.schema.paths[pathName].options.ref)) {
-      this.set(path[key], prefix + key, constructing);
+      this.$set(path[key], prefix + key, constructing);
     } else if (strict) {
       // Don't overwrite defaults with undefined keys (gh-3981)
       if (constructing && path[key] === void 0 &&
@@ -599,9 +599,9 @@ Document.prototype.set = function(path, val, type, options) {
             path[key] instanceof Document) {
           p = p.toObject({ virtuals: false, transform: false });
         }
-        this.set(prefix + key, p, constructing);
+        this.$set(prefix + key, p, constructing);
       } else if (pathtype === 'nested' && path[key] instanceof Document) {
-        this.set(prefix + key,
+        this.$set(prefix + key,
             path[key].toObject({transform: false}), constructing);
       } else if (strict === 'throw') {
         if (pathtype === 'nested') {
@@ -611,7 +611,7 @@ Document.prototype.set = function(path, val, type, options) {
         }
       }
     } else if (path[key] !== void 0) {
-      this.set(prefix + key, path[key], constructing);
+      this.$set(prefix + key, path[key], constructing);
     }
   }
 
@@ -629,7 +629,7 @@ Document.prototype.set = function(path, val, type, options) {
         this.markModified(path);
         cleanModifiedSubpaths(this, path);
       } else {
-        this.set(val, path, constructing);
+        this.$set(val, path, constructing);
       }
       return this;
     }
@@ -681,7 +681,7 @@ Document.prototype.set = function(path, val, type, options) {
     cur = cur[parts[i]];
     curPath += (curPath.length > 0 ? '.' : '') + parts[i];
     if (!cur) {
-      this.set(curPath, {});
+      this.$set(curPath, {});
       cur = this.getValue(curPath);
     }
   }
@@ -785,6 +785,12 @@ Document.prototype.set = function(path, val, type, options) {
   return this;
 };
 
+/*!
+ * ignore
+ */
+
+Document.prototype.set = Document.prototype.$set;
+
 /**
  * Determine if we should mark this change as modified.
  *
@@ -2575,7 +2581,7 @@ Document.prototype.depopulate = function(path) {
     return;
   }
   delete this.$__.populated[path];
-  this.set(path, populatedIds);
+  this.$set(path, populatedIds);
   return this;
 };
 
diff --git a/lib/schema.js b/lib/schema.js
index e4517730287..a849eee9b03 100644
--- a/lib/schema.js
+++ b/lib/schema.js
@@ -325,7 +325,8 @@ Schema.prototype.defaultOptions = function(options) {
     noVirtualId: false, // deprecated, use { id: false }
     id: true,
     typeKey: 'type',
-    retainKeyOrder: false
+    retainKeyOrder: false,
+    setFunction: 'set'
   }, options);
 
   if (options.read) {
diff --git a/lib/services/document/compile.js b/lib/services/document/compile.js
index 958c4b672a1..e5b329cf1c1 100644
--- a/lib/services/document/compile.js
+++ b/lib/services/document/compile.js
@@ -126,7 +126,8 @@ function defineKey(prop, subprops, prototype, prefix, keys, options) {
         if (v instanceof Document) {
           v = v.toObject({ transform: false });
         }
-        return (this.$__.scope || this).set(path, v);
+        var doc = this.$__.scope || this;
+        return doc[doc.schema.options.setFunction](path, v);
       }
     });
   } else {
@@ -137,7 +138,7 @@ function defineKey(prop, subprops, prototype, prefix, keys, options) {
         return this.get.call(this.$__.scope || this, path);
       },
       set: function(v) {
-        return this.set.call(this.$__.scope || this, path, v);
+        return this[this.schema.options.setFunction].call(this.$__.scope || this, path, v);
       }
     });
   }