Files
payload/docs/access-control/fields.mdx
Elliot DeNolf b383eb65c6 feat: autolabel fields when label is omitted (#42)
* feat: autolabel fields when omitted

* feat: handle autolabel in graphql mutation build

* feat: autolabel blocks

* test: add required slug field to blocks

* feat: handle graphql names when label is false

* feat: adds relationship field to test searchable input

* feat: handle block cell type labeling pluralization

* docs: remove all explicit labeling, no longer needed

* fix: falsey column labels, allows false array labels

* fix: client tests

* fix: auto-labels globals

* docs: globals auto-labeling and hooks clarification

* fix; proper object type naming

Co-authored-by: James <james@trbl.design>
2021-04-16 22:37:08 -04:00

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---
title: Field-level Access Control
label: Fields
order: 30
desc: Field-level Access Control is specified within a field's config, and allows you to define which users can create, read or update Fields.
keywords: fields, access control, permissions, documentation, Content Management System, cms, headless, javascript, node, react, express
---
Field Access Control is specified with functions inside a field's config. All field-level Controls return a boolean value to allow or deny access for the specified operation. No field-level Access Controls support returning query constraints. All Access Control functions accept one `args` argument.
## Available Controls
| Function | Purpose |
| ------------------------ | ------- |
| **[`create`](#create)** | Allows or denies the ability to set a field's value when creating a new document |
| **[`read`](#read)** | Allows or denies the ability to read a field's value |
| **[`update`](#update)** | Allows or denies the ability to update a field's value |
**Example Collection config:**
```js
export default {
slug: 'posts',
fields: [
{
name: 'title',
type: 'text',
// highlight-start
access: {
create: ({ req: { user } }) => { ... },
read: ({ req: { user } }) => { ... },
update: ({ req: { user } }) => { ... },
},
// highlight-end
};
],
}
```
### Create
Returns a boolean which allows or denies the ability to set a field's value when creating a new document. If `false` is returned, any passed values will be discarded.
**Available argument properties:**
| Option | Description |
| ----------------- | ----------- |
| **`req`** | The Express `request` object containing the currently authenticated `user` |
| **`data`** | The full data passed to create the document. |
| **`siblingData`** | Immediately adjacent field data passed to create the document. |
### Read
Returns a boolean which allows or denies the ability to read a field's value. If `false`, the entire property is omitted from the resulting document.
**Available argument properties:**
| Option | Description |
| ----------------- | ----------- |
| **`req`** | The Express `request` object containing the currently authenticated `user` |
| **`id`** | `id` of the document being read |
| **`data`** | The full data of the document being read. |
| **`siblingData`** | Immediately adjacent field data of the document being read. |
### Update
Returns a boolean which allows or denies the ability to update a field's value. If `false` is returned, any passed values will be discarded.
**Available argument properties:**
| Option | Description |
| ----------------- | ----------- |
| **`req`** | The Express `request` object containing the currently authenticated `user` |
| **`id`** | `id` of the document being updated |
| **`data`** | The full data passed to update the document. |
| **`siblingData`** | Immediately adjacent field data passed to update the document with. |