[BUGFIX] Fix availability of properties in createRecord init

addon/-private/system/many-array.js

@@ -136,6 +136,9 @@ export default EmberObject.extend(MutableArray, Evented, {
   },
 
   objectAt(index) {
+    if (this.relationship._willUpdateManyArray) {
+      this.relationship._flushPendingManyArrayUpdates();
+    }
     let internalModel = this.currentState[index];
     if (internalModel === undefined) { return; }
 

addon/-private/system/model/internal-model.js

@@ -1,4 +1,5 @@
 import { assign, merge } from '@ember/polyfills';
+import { A } from '@ember/array';
 import { set, get } from '@ember/object';
 import { copy } from '@ember/object/internals';
 import EmberError from '@ember/error';
@@ -13,6 +14,7 @@ import RootState from "./states";
 import Relationships from "../relationships/state/create";
 import Snapshot from "../snapshot";
 import OrderedSet from "../ordered-set";
+import isArrayLike from "../is-array-like";
 
 import { getOwner } from '../../utils';
 
@@ -334,7 +336,7 @@ export default class InternalModel {
     return this.currentState.dirtyType;
   }
 
-  getRecord() {
+  getRecord(properties) {
     if (!this._record && !this._isDematerializing) {
       heimdall.increment(materializeRecord);
       let token = heimdall.start('InternalModel.getRecord');
@@ -349,6 +351,40 @@ export default class InternalModel {
         adapterError: this.error
       };
 
+      if (properties !== undefined) {
+        assert(`You passed '${properties}' as properties for record creation instead of an object.`, typeof properties === 'object' && properties !== null);
+        let classFields = this.getFields();
+        let relationships = this._relationships;
+        let propertyNames = Object.keys(properties);
+
+        for (let i = 0; i < propertyNames.length; i++) {
+          let name = propertyNames[i];
+          let fieldType = classFields.get(name);
+          let propertyValue = properties[name];
+
+          if (name === 'id') {
+            this.setId(propertyValue);
+            continue;
+          }
+
+          switch (fieldType) {
+            case 'attribute':
+              this.setDirtyAttribute(name, propertyValue);
+              break;
+            case 'belongsTo':
+              this.setDirtyBelongsTo(name, propertyValue);
+              relationships.get(name).setHasData(true);
+              break;
+            case 'hasMany':
+              this.setDirtyHasMany(name, propertyValue);
+              relationships.get(name).setHasData(true);
+              break;
+            default:
+              createOptions[name] = propertyValue;
+          }
+        }
+      }
+
       if (setOwner) {
         // ensure that `getOwner(this)` works inside a model instance
         setOwner(createOptions, getOwner(this.store));
@@ -365,6 +401,10 @@ export default class InternalModel {
     return this._record;
   }
 
+  getFields() {
+    return get(this.modelClass, 'fields');
+  }
+
   resetRecord() {
     this._record = null;
     this.isReloading = false;
@@ -602,6 +642,70 @@ export default class InternalModel {
     }
   }
 
+  getAttributeValue(key) {
+    if (key in this._attributes) {
+      return this._attributes[key];
+    } else if (key in this._inFlightAttributes) {
+      return this._inFlightAttributes[key];
+    } else {
+      return this._data[key];
+    }
+  }
+
+  setDirtyHasMany(key, records) {
+    assert(`You must pass an array of records to set a hasMany relationship`, isArrayLike(records));
+    assert(`All elements of a hasMany relationship must be instances of DS.Model, you passed ${inspect(records)}`, (function() {
+      return A(records).every((record) => record.hasOwnProperty('_internalModel') === true);
+    })());
+
+    let relationship = this._relationships.get(key);
+    relationship.clear();
+    relationship.addInternalModels(records.map(record => get(record, '_internalModel')));
+  }
+
+  setDirtyBelongsTo(key, value) {
+    if (value === undefined) {
+      value = null;
+    }
+    if (value && value.then) {
+      this._relationships.get(key).setRecordPromise(value);
+    } else if (value) {
+      this._relationships.get(key).setInternalModel(value._internalModel);
+    } else {
+      this._relationships.get(key).setInternalModel(value);
+    }
+  }
+
+  setDirtyAttribute(key, value) {
+    if (this.isDeleted()) {
+      throw new EmberError(`Attempted to set '${key}' to '${value}' on the deleted record ${this}`);
+    }
+
+    let oldValue = this.getAttributeValue(key);
+    let originalValue;
+
+    if (value !== oldValue) {
+      // Add the new value to the changed attributes hash; it will get deleted by
+      // the 'didSetProperty' handler if it is no different from the original value
+      this._attributes[key] = value;
+
+      if (key in this._inFlightAttributes) {
+        originalValue = this._inFlightAttributes[key];
+      } else {
+        originalValue = this._data[key];
+      }
+
+      this.send('didSetProperty', {
+        name: key,
+        oldValue: oldValue,
+        originalValue: originalValue,
+        value: value
+      });
+    }
+
+    return value;
+  }
+
   get isDestroyed() {
     return this._isDestroyed;
   }

addon/-private/system/relationships/belongs-to.js

@@ -118,16 +118,7 @@ export default function belongsTo(modelName, options) {
       return this._internalModel._relationships.get(key).getRecord();
     },
     set(key, value) {
-      if (value === undefined) {
-        value = null;
-      }
-      if (value && value.then) {
-        this._internalModel._relationships.get(key).setRecordPromise(value);
-      } else if (value) {
-        this._internalModel._relationships.get(key).setInternalModel(value._internalModel);
-      } else {
-        this._internalModel._relationships.get(key).setInternalModel(value);
-      }
+      this._internalModel.setDirtyBelongsTo(key, value);
 
       return this._internalModel._relationships.get(key).getRecord();
     }

addon/-private/system/relationships/has-many.js

@@ -1,13 +1,9 @@
 /**
   @module ember-data
 */
-
-import { A } from '@ember/array';
-
-import { get, computed } from '@ember/object';
+import { computed } from '@ember/object';
 import { assert, inspect } from '@ember/debug';
 import normalizeModelName from "../normalize-model-name";
-import isArrayLike from "../is-array-like";
 
 /**
   `DS.hasMany` is used to define One-To-Many and Many-To-Many
@@ -147,15 +143,9 @@ export default function hasMany(type, options) {
       return this._internalModel._relationships.get(key).getRecords();
     },
     set(key, records) {
-      assert(`You must pass an array of records to set a hasMany relationship`, isArrayLike(records));
-      assert(`All elements of a hasMany relationship must be instances of DS.Model, you passed ${inspect(records)}`, (function() {
-        return A(records).every((record) => record.hasOwnProperty('_internalModel') === true);
-      })());
-
-      let relationship = this._internalModel._relationships.get(key);
-      relationship.clear();
-      relationship.addInternalModels(records.map(record => get(record, '_internalModel')));
-      return relationship.getRecords();
+      this._internalModel.setDirtyHasMany(key, records);
+
+      return this._internalModel._relationships.get(key).getRecords();
     }
   }).meta(meta);
 }

addon/-private/system/relationships/state/has-many.js

@@ -17,6 +17,8 @@ export default class ManyRelationship extends Relationship {
     // inverse internal models are unloaded.
     this._retainedManyArray = null;
     this.__loadingPromise = null;
+    this._willUpdateManyArray = false;
+    this._pendingManyArrayUpdates = null;
   }
 
   get _loadingPromise() { return this.__loadingPromise; }
@@ -109,8 +111,46 @@ export default class ManyRelationship extends Relationship {
 
     assertPolymorphicType(this.internalModel, this.relationshipMeta, internalModel);
     super.addInternalModel(internalModel, idx);
-    // make lazy later
-    this.manyArray._addInternalModels([internalModel], idx);
+    this.scheduleManyArrayUpdate(internalModel, idx);
+  }
+
+  scheduleManyArrayUpdate(internalModel, idx) {
+    // ideally we would early exit here, but some tests
+    //   currently suggest that we cannot.
+    // if (!this._manyArray) {
+    //   return;
+    // }
+
+    let pending = this._pendingManyArrayUpdates = this._pendingManyArrayUpdates || [];
+    pending.push(internalModel, idx);
+
+    if (this._willUpdateManyArray === true) {
+      return;
+    }
+
+    this._willUpdateManyArray = true;
+    let backburner = this.store._backburner;
+
+    backburner.join(() => {
+      backburner.schedule('syncRelationships', this, this._flushPendingManyArrayUpdates);
+    });
+  }
+
+  _flushPendingManyArrayUpdates() {
+    if (this._willUpdateManyArray === false) {
+      return;
+    }
+
+    let pending = this._pendingManyArrayUpdates;
+    this._pendingManyArrayUpdates = [];
+    this._willUpdateManyArray = false;
+
+    for (let i = 0; i < pending.length; i += 2) {
+      let internalModel = pending[i];
+      let idx = pending[i + 1];
+
+      this.manyArray._addInternalModels([internalModel], idx);
+    }
   }
 
   removeCanonicalInternalModelFromOwn(internalModel, idx) {

addon/-private/system/snapshot.js

@@ -24,25 +24,13 @@ export default class Snapshot {
     this._hasManyIds = Object.create(null);
     this._internalModel = internalModel;
 
-    let record = internalModel.getRecord();
+    // TODO is there a way we can assign known attributes without
+    //  using `eachAttribute`? This forces us to lookup the model-class
+    //  but for findRecord / findAll these are empty and doing so at
+    //  this point in time is unnecessary.
+    internalModel.eachAttribute((keyName) => this._attributes[keyName] = internalModel.getAttributeValue(keyName));
 
-    /**
-     The underlying record for this snapshot. Can be used to access methods and
-     properties defined on the record.
-
-     Example
-
-     ```javascript
-     let json = snapshot.record.toJSON();
-     ```
-
-     @property record
-     @type {DS.Model}
-     */
-    this.record = record;
-    record.eachAttribute((keyName) => this._attributes[keyName] = get(record, keyName));
-
-    /**
+    /**O
      The id of the snapshot's underlying record
 
      Example
@@ -73,7 +61,24 @@ export default class Snapshot {
      */
     this.modelName = internalModel.modelName;
 
-    this._changedAttributes = record.changedAttributes();
+    this._changedAttributes = internalModel.changedAttributes();
+  }
+
+  /**
+   The underlying record for this snapshot. Can be used to access methods and
+   properties defined on the record.
+
+   Example
+
+   ```javascript
+   let json = snapshot.record.toJSON();
+   ```
+
+   @property record
+   @type {DS.Model}
+   */
+  get record() {
+    return this._internalModel.getRecord();
   }
 
   /**

addon/-private/system/store.js

@@ -339,34 +339,27 @@ Store = Service.extend({
   createRecord(modelName, inputProperties) {
     assert(`You need to pass a model name to the store's createRecord method`, isPresent(modelName));
     assert(`Passing classes to store methods has been removed. Please pass a dasherized string instead of ${modelName}`, typeof modelName === 'string');
-    let normalizedModelName = normalizeModelName(modelName);
-    let properties = copy(inputProperties) || Object.create(null);
 
-    // If the passed properties do not include a primary key,
-    // give the adapter an opportunity to generate one. Typically,
-    // client-side ID generators will use something like uuid.js
-    // to avoid conflicts.
+    return this._backburner.join(() => {
+      let normalizedModelName = normalizeModelName(modelName);
+      let properties = copy(inputProperties) || Object.create(null);
 
-    if (isNone(properties.id)) {
-      properties.id = this._generateId(normalizedModelName, properties);
-    }
+      // If the passed properties do not include a primary key,
+      // give the adapter an opportunity to generate one. Typically,
+      // client-side ID generators will use something like uuid.js
+      // to avoid conflicts.
 
-    // Coerce ID to a string
-    properties.id = coerceId(properties.id);
+      if (isNone(properties.id)) {
+        properties.id = this._generateId(normalizedModelName, properties);
+      }
 
-    let internalModel = this._buildInternalModel(normalizedModelName, properties.id);
-    internalModel.loadedData();
-    let record = internalModel.getRecord();
-    record.setProperties(properties);
+      // Coerce ID to a string
+      properties.id = coerceId(properties.id);
 
-    // TODO @runspired this should also be coalesced into some form of internalModel.setState()
-    internalModel.eachRelationship((key, descriptor) => {
-      if (properties[key] !== undefined) {
-        internalModel._relationships.get(key).setHasData(true);
-      }
+      let internalModel = this._buildInternalModel(normalizedModelName, properties.id);
+      internalModel.loadedData();
+      return internalModel.getRecord(properties);
     });
-
-    return record;
   },
 
   /**