单击保存所有按钮时,从 Angular slick-grid 中获取所有已编辑的行
Get all the edited rows from Angular slick-grid on save all button click
我有一个 Ionic 应用程序,我在其中使用 Angular 光滑网格进行内联编辑来编辑网格。在我的例子中,用户将进行所有必要的更改,最后在 "save all" 按钮上单击 所有编辑的内容都必须在数据库中更新。我想知道是否有 默认情况下grid/dataset 中提取已编辑记录的方法,而不是维护用于存储已编辑记录 ID 的外部变量。
//I use this method to update the dataset.
onCellChanged(e, args) {
this.angularGrid.gridService.updateDataGridItemById(args.item['id'], args.item);
}
您可以使用编辑命令队列来了解更改了哪些项目,此队列可用于在出现任何错误或您只想撤消时执行 "Undo"。队列跟踪所有项目 row/cell 索引及其被修改的值 before/after,您可以从那里获取所有项目,一旦您 "Save All" 您可以重置该队列.
export class MyComponent {
private angularGrid: AngularGridInstance;
private dataViewObj: any;
private gridObj: any;
private editQueue = [];
angularGridReady(angularGrid: AngularGridInstance) {
this.angularGrid = angularGrid;
this.gridObj = angularGrid.slickGrid;
this.dataViewObj = angularGrid.dataView;
}
prepareGrid() {
this.columnDefinitions = [ /*...*/ ];
this.gridOptions = {
autoEdit: true,
editable: true,
enableCellNavigation: true,
editCommandHandler: (item, column, editCommand) => {
this.editQueue.push(editCommand); // <-- last edit command
editCommand.execute();
},
};
}
handleOnErrorCallback(error, gridObj) {
// undo last edit in the grid
const lastEdit = this.editQueue.pop();
if (lastEdit && lastEdit.command) {
lastEdit.command.undo();
gridObj.gotoCell(lastEdit.command.row, lastEdit.command.cell, false);
}
return false;
}
saveAll() {
// for example, to get the last Edit, you could type get it this way
// const lastEdit = this.editQueue[this.editQueue.length - 1];
// const lastEditField = lastEdit && lastEdit.column && lastEdit.column.field;
const editItems = [];
// in your case, you would want to loop through the entire queue
this.editQueue.forEach((editObj) => {
const previousValue = editObj.prevSerializedValue;
const newValue = editObj.serializedValue;
const rowIndex = editObj.row; // from the row index, you can get the item
const item = this.angularGrid.dataView.getItem(rowIndex);
// do what you want with the value or item
editItems.push(item);
});
// call your save all method
// this.saveInDb(editItems);
// don't forget to reset your edit queue to restart with a new batch of edits
this.editQueue = [];
}
}
实际上在写完这篇文章后,我发现直接从 editCommandHandler
中获取项目数组可能更容易
export class MyComponent {
private editItems = [];
prepareGrid() {
this.columnDefinitions = [ /*...*/ ];
this.gridOptions = {
autoEdit: true,
editable: true,
enableCellNavigation: true,
editCommandHandler: (item, column, editCommand) => {
this.editItems.push(item);
this.editQueue.push(editCommand); // <-- last edit command
editCommand.execute();
},
};
}
saveAll() {
// call your save all method
// this.saveInDb(editItems);
// don't forget to reset your edit queue to restart with a new batch of edits
this.editQueue = [];
this.editItems = [];
}
}
我有一个 Ionic 应用程序,我在其中使用 Angular 光滑网格进行内联编辑来编辑网格。在我的例子中,用户将进行所有必要的更改,最后在 "save all" 按钮上单击 所有编辑的内容都必须在数据库中更新。我想知道是否有 默认情况下grid/dataset 中提取已编辑记录的方法,而不是维护用于存储已编辑记录 ID 的外部变量。
//I use this method to update the dataset.
onCellChanged(e, args) {
this.angularGrid.gridService.updateDataGridItemById(args.item['id'], args.item);
}
您可以使用编辑命令队列来了解更改了哪些项目,此队列可用于在出现任何错误或您只想撤消时执行 "Undo"。队列跟踪所有项目 row/cell 索引及其被修改的值 before/after,您可以从那里获取所有项目,一旦您 "Save All" 您可以重置该队列.
export class MyComponent {
private angularGrid: AngularGridInstance;
private dataViewObj: any;
private gridObj: any;
private editQueue = [];
angularGridReady(angularGrid: AngularGridInstance) {
this.angularGrid = angularGrid;
this.gridObj = angularGrid.slickGrid;
this.dataViewObj = angularGrid.dataView;
}
prepareGrid() {
this.columnDefinitions = [ /*...*/ ];
this.gridOptions = {
autoEdit: true,
editable: true,
enableCellNavigation: true,
editCommandHandler: (item, column, editCommand) => {
this.editQueue.push(editCommand); // <-- last edit command
editCommand.execute();
},
};
}
handleOnErrorCallback(error, gridObj) {
// undo last edit in the grid
const lastEdit = this.editQueue.pop();
if (lastEdit && lastEdit.command) {
lastEdit.command.undo();
gridObj.gotoCell(lastEdit.command.row, lastEdit.command.cell, false);
}
return false;
}
saveAll() {
// for example, to get the last Edit, you could type get it this way
// const lastEdit = this.editQueue[this.editQueue.length - 1];
// const lastEditField = lastEdit && lastEdit.column && lastEdit.column.field;
const editItems = [];
// in your case, you would want to loop through the entire queue
this.editQueue.forEach((editObj) => {
const previousValue = editObj.prevSerializedValue;
const newValue = editObj.serializedValue;
const rowIndex = editObj.row; // from the row index, you can get the item
const item = this.angularGrid.dataView.getItem(rowIndex);
// do what you want with the value or item
editItems.push(item);
});
// call your save all method
// this.saveInDb(editItems);
// don't forget to reset your edit queue to restart with a new batch of edits
this.editQueue = [];
}
}
实际上在写完这篇文章后,我发现直接从 editCommandHandler
export class MyComponent {
private editItems = [];
prepareGrid() {
this.columnDefinitions = [ /*...*/ ];
this.gridOptions = {
autoEdit: true,
editable: true,
enableCellNavigation: true,
editCommandHandler: (item, column, editCommand) => {
this.editItems.push(item);
this.editQueue.push(editCommand); // <-- last edit command
editCommand.execute();
},
};
}
saveAll() {
// call your save all method
// this.saveInDb(editItems);
// don't forget to reset your edit queue to restart with a new batch of edits
this.editQueue = [];
this.editItems = [];
}
}