@clickup/ent-framework
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A PostgreSQL graph-database-alike library with microsharding and row-level security
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[**@clickup/ent-framework**](../README.md)
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[@clickup/ent-framework](../globals.md) / BeforeMutationTrigger
# Type Alias: BeforeMutationTrigger()\<TTable\>
> **BeforeMutationTrigger**\<`TTable`\>: (`vc`, `args`) => `Promise`\<`unknown`\> \| `unknown`
Defined in: [src/ent/Triggers.ts:123](https://github.com/clickup/ent-framework/blob/master/src/ent/Triggers.ts#L123)
## Type Parameters
| Type Parameter |
| ------ |
| `TTable` *extends* [`Table`](Table.md) |
## Parameters
| Parameter | Type |
| ------ | ------ |
| `vc` | [`VC`](../classes/VC.md) |
| `args` | \{ `op`: `"INSERT"`; `newOrOldRow`: `Readonly`\<[`TriggerInsertInput`](TriggerInsertInput.md)\<`TTable`\>\>; `input`: [`TriggerInsertInput`](TriggerInsertInput.md)\<`TTable`\>; \} \| \{ `op`: `"UPDATE"`; `newOrOldRow`: [`TriggerUpdateNewRow`](TriggerUpdateNewRow.md)\<`TTable`\>; `input`: [`TriggerUpdateInput`](TriggerUpdateInput.md)\<`TTable`\>; \} \| \{ `op`: `"DELETE"`; `newOrOldRow`: [`TriggerUpdateOrDeleteOldRow`](TriggerUpdateOrDeleteOldRow.md)\<`TTable`\>; `input`: `Writeable`\<[`TriggerUpdateOrDeleteOldRow`](TriggerUpdateOrDeleteOldRow.md)\<`TTable`\>\>; \} |
## Returns
`Promise`\<`unknown`\> \| `unknown`