Struct ComputedFieldsPlugin 

pub struct ComputedFieldsPlugin { /* private fields */ }

Computed fields plugin. Auto-derives fields on read based on other fields. Example: fullName = firstName + “ “ + lastName

Implementations

impl ComputedFieldsPlugin

pub fn new() -> Self

pub fn add<F>(&mut self, entity: &str, field_name: &str, compute: F)

where F: Fn(&Value) -> Value + Send + Sync + 'static,

Add a computed field.

pub fn apply(&self, entity: &str, row: &mut Value)

Apply computed fields to a row.

pub fn apply_all(&self, entity: &str, rows: &mut [Value])

Apply computed fields to a list of rows.

Trait Implementations

impl Plugin for ComputedFieldsPlugin

fn name(&self) -> &str

Unique name for this plugin.

fn on_init(&self, _ctx: &PluginContext)

Called once when the plugin is registered.

fn routes(&self) -> Vec<PluginRoute>

Custom API routes this plugin handles.

fn before_insert( &self, _entity: &str, _data: &mut Value, _auth: &AuthContext, ) -> Result<(), PluginError>

Called before an entity insert. Return Err to reject.

fn after_insert( &self, _entity: &str, _id: &str, _data: &Value, _auth: &AuthContext, )

Called after a successful insert.

fn before_update( &self, _entity: &str, _id: &str, _data: &mut Value, _auth: &AuthContext, ) -> Result<(), PluginError>

Called before an entity update. Return Err to reject.

fn after_update( &self, _entity: &str, _id: &str, _data: &Value, _auth: &AuthContext, )

Called after a successful update.

fn before_delete( &self, _entity: &str, _id: &str, _auth: &AuthContext, ) -> Result<(), PluginError>

Called before an entity delete. Return Err to reject.

fn after_delete(&self, _entity: &str, _id: &str, _auth: &AuthContext)

Called after a successful delete.

fn on_request( &self, _method: &str, _path: &str, _auth: &AuthContext, ) -> Result<(), PluginError>

Called on every incoming request (middleware).

fn on_request_with_meta( &self, method: &str, path: &str, auth: &AuthContext, _meta: &RequestMeta<'_>, ) -> Result<(), PluginError>

Richer variant of [on_request] that also receives per-request metadata (peer IP today; more fields may be added later). The default implementation delegates to on_request so existing plugins keep working without changes. Plugins that care about IP — notably rate limiting — override this hook.

fn on_session_create(&self, _user_id: &str, _token: &str)

Called when a new session is created.

fn entities(&self) -> Vec<ManifestEntity>

Additional manifest entities this plugin contributes.