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# Method name: beforeRemove(itemId: string, context: UpdateHookContext)

# Method package: wixDataHooks

# Method menu location: wixDataHooks --> beforeRemove

# Method Link: https://dev.wix.com/docs/velo/events-service-plugins/data/hooks/wix-data-hooks/before-remove.md

# Method Description:

A hook that is called before a `remove()` operation.

The `beforeRemove()` hook runs when:

 + The [`remove()`](wix-data.html#remove) function is called.
 + An action is performed on a dataset that removes an item from the collection.
 + An item is deleted using the CMS.


 The hook also runs when an action is performed on a dataset that removes
 an item from the collection that the dataset is connected to.

 Return a string or a Promise that resolves to a string from the `beforeRemove()`
 function. The returned string will be used as the `itemId` parameter for the
 [`remove()`](wix-data.html#remove) operation. The item with the new `itemId`
 will be removed instead of the item with the original `itemId`.

 If the returned value is of the wrong type, the value is ignored.

 A rejected Promise blocks the call to [`remove()`](wix-data.html#remove)
 and also calls the [`onFailure()`](#onFailure) hook if it has been registered.

 Because the `beforeRemove()` hook is called before [`remove()`](wix-data.html#remove)
 is executed, it can affect the item that is removed from the collection
 or block the [`remove()`](wix-data.html#remove).



# Method Code Examples:

*** Note: do not assume any prop names or enum values other than the ones in the example.

## A beforeRemove hook

```javascript
// In data.js

export function myCollection_beforeRemove(itemId, context) {
  let hookContext = context;  // see below

  // change to the item to remove

  return itemId;
}

/*
 * hookContext:
 *
 * {
 *   "collectionName": "myCollection",
 *   "userId":         "f45jf8d2-grkj-2opd-4ovk-9rfj4wo5tvj3",
 *   "userRole":       "siteOwner"
 * }
 */
```

## Change the item to remove using a beforeRemove hook

```javascript
// In data.js

export function myCollection_beforeRemove(itemId, context) {
  let hookContext = context;  // see below

  // change to the item to remove
  let newItemId = "1234";

  return newItemId;
}

/*
 * hookContext:
 *
 * {
 *   "collectionName": "myCollection",
 *   "userId":         "f45jf8d2-grkj-2opd-4ovk-9rfj4wo5tvj3",
 *   "userRole":       "siteOwner"
 * }
 */
```

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