diff options
Diffstat (limited to 'src/fields/ListField.ts')
| -rw-r--r-- | src/fields/ListField.ts | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/fields/ListField.ts b/src/fields/ListField.ts index 700600804..ce32da0a6 100644 --- a/src/fields/ListField.ts +++ b/src/fields/ListField.ts @@ -40,6 +40,7 @@ export class ListField<T extends Field> extends BasicField<T[]> { this.observeDisposer() } this.data = observable(value); + this.updateProxies(); this.observeList(); } @@ -69,7 +70,25 @@ export class ListField<T extends Field> extends BasicField<T[]> { init(callback: (field: Field) => any) { Server.GetFields(this._proxies, action((fields: { [index: string]: Field }) => { if (!this.arraysEqual(this._proxies, this.Data.map(field => field.Id))) { - this.data = this._proxies.map(id => fields[id] as T) + var dataids = this.data.map(d => d.Id); + var added = this.data.length == this._proxies.length - 1; + var deleted = this.data.length > this._proxies.length; + for (let i = 0; i < dataids.length && added; i++) + added = this._proxies.indexOf(dataids[i]) != -1; + for (let i = 0; i < this._proxies.length && deleted; i++) + deleted = dataids.indexOf(this._proxies[i]) != -1; + if (added) { // if only 1 items was added + for (let i = 0; i < this._proxies.length; i++) + if (dataids.indexOf(this._proxies[i]) === -1) + this.Data.splice(i, 0, fields[this._proxies[i]] as T); + } else if (deleted) { // if only items were deleted + for (let i = this.data.length - 1; i >= 0; i--) { + if (this._proxies.indexOf(this.data[i].Id) === -1) { + this.Data.splice(i, 1); + } + } + } else // otherwise, just rebuild the whole list + this.data = this._proxies.map(id => fields[id] as T) observe(this.Data, () => { this.updateProxies() Server.UpdateField(this); |