Struct UserByID 

pub struct UserByID {
    _marker: PhantomData<()>,
    function_component: FunctionComponent<Self>,
}

A component for displaying, updating, and deleting a single user by their ID.

This component fetches a specific user’s details from the backend based on the id provided in its UserProps. It allows administrators to view, modify (first name, last name, username, admin status, and password), and delete user accounts.

Props

• id: The i16 ID of the user to fetch and display.

State

Uses use_state hooks to manage:

• user: The fetched FilteredUser data, if available.
• error: Any error message encountered during initial user data fetching.
• loading: A boolean indicating if initial user data is being fetched.
• first_name, last_name, username, make_admin, new_pwd: States for the update form fields, pre-filled with current user data.
• saving, save_error, save_success: States for the user update operation.
• deleting, delete_error: States for the user deletion operation.

Functionality

• Initial Data Fetching: On component mount or id change, fetches user data from /api/users/:id.
• Form Initialization: Populates the update form fields with the fetched user’s current details once loaded.
• User Update: The update form sends a PATCH request to /api/users/:id with a UserUpdateScheme payload. On success, updates the displayed user data and shows a success message.
• User Deletion: Includes a “Delete” button that, after user confirmation, sends a DELETE request to /api/users/:id. On success, clears the user from display.
• Error Handling: Displays error messages for various API and network issues.

Example

html! {
    <UserByID id={42} />
}

Fields

_marker: PhantomData<()>

function_component: FunctionComponent<Self>

Trait Implementations

impl BaseComponent for UserByID

where Self: 'static,

type Message = ()

The Component’s Message.

type Properties = UserProps

The Component’s Properties.

fn create(ctx: &Context<Self>) -> Self

Creates a component.

fn update(&mut self, _ctx: &Context<Self>, _msg: Self::Message) -> bool

Updates component’s internal state.

fn changed( &mut self, _ctx: &Context<Self>, _old_props: &Self::Properties, ) -> bool

React to changes of component properties.

fn view(&self, ctx: &Context<Self>) -> HtmlResult

Returns a component layout to be rendered.

fn rendered(&mut self, _ctx: &Context<Self>, _first_render: bool)

Notified after a layout is rendered.

fn destroy(&mut self, _ctx: &Context<Self>)

Notified before a component is destroyed.

fn prepare_state(&self) -> Option<String>

Prepares the server-side state.

impl Debug for UserByID

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FunctionProvider for UserByID

type Properties = UserProps

Properties for the Function Component.

fn run(ctx: &mut HookContext, props: &Self::Properties) -> HtmlResult

Render the component. This function returns the Html to be rendered for the component.