Struct Contributions 

pub struct Contributions {
    pub resources: Vec<Resource>,
    pub settings: Vec<SettingsItem>,
    pub permissions: Vec<Permission>,
    pub picker_sources: Vec<PickerSourceReg>,
    pub persisters: Vec<PersisterReg>,
    pub listeners: Vec<ModelListenerReg>,
    pub column_types: Vec<ColumnTypeReg>,
    pub screens: Vec<ScreenReg>,
    pub public_routes: Vec<PublicRouteReg>,
    pub plugin_defined: Arc<Registry>,
}

Builds the admin router. app_resources are the application’s own list/form screens; app_settings are its settings models; app_permissions are the permissions it defines, offered in the role editor alongside the framework’s. All are mounted alongside the framework’s built-in equivalents. Everything the modules and the application contribute to the admin, in one value.

Build it with the fields you mean and leave the rest to Default:

let contributions = Contributions {
    permissions: Vec::new(),
    ..Default::default()
};

It exists so that a new kind of contribution is a new field rather than a new argument. The nine of them were positional before, and a run of interchangeable Vec::new() placeholders is a mistake the compiler cannot catch: swap two and it still builds. Naming them removes that whole class of error, and ending a literal with ..Default::default() means a later field does not break the call.

Fields

resources: Vec<Resource>

List and form screens, mounted beside the framework’s own.

settings: Vec<SettingsItem>

Settings models, offered in the settings area.

permissions: Vec<Permission>

Permissions defined by the application, offered in the role editor.

picker_sources: Vec<PickerSourceReg>

Sources a reference field searches and resolves against.

persisters: Vec<PersisterReg>

Named write handlers a form can select.

listeners: Vec<ModelListenerReg>

Listeners run around every save and delete.

column_types: Vec<ColumnTypeReg>

Column types a list cell can render through.

screens: Vec<ScreenReg>

Screens a module mounts itself, for anything that is not a list or form.

public_routes: Vec<PublicRouteReg>

Routes mounted outside the admin, at literal paths.

plugin_defined: Arc<Registry>

Everything the framework itself does not consume: the contribution types modules define for each other. Kept whole so a contributed route can read them through routes::RouteCtx::contributions, which is what makes a module’s own extension point usable by another module.

Trait Implementations

impl Default for Contributions

fn default() -> Contributions

Returns the “default value” for a type.