Struct Supports 

#[non_exhaustive]
pub struct Supports {
    pub filter: Option<bool>,
    pub order: Option<bool>,
    pub search: Option<bool>,
    pub paginate: Option<bool>,
    pub count: CountMode,
}

Per-table overrides for what the server will actually accept, each None meaning “use the dialect’s default”.

These exist because a GraphQL endpoint is not uniform: on one schema the list field takes where/order_by/limit, on the next it takes no arguments at all. Spacelift’s stacks is the second kind, and pushing a filter at it renders a query the server rejects outright — so this is what stops equality push-down, which Vista otherwise assumes every driver supports.

Offset paging is advertised only when both paginate and filter are on: with filtering done locally, a server page would be cut down after the fact and come back short.

Build one from Supports::default with the with_* setters:

use vantage_api_client::{CountMode, Supports};

let supports = Supports::default()
    .with_filter(false)
    .with_count(CountMode::Aggregate);
assert_eq!(supports.filter, Some(false));

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

filter: Option<bool>

Conditions may be pushed into the filter argument. Default: on.

order: Option<bool>

order_by: may be rendered. Default: on for Hasura only.

search: Option<bool>

A quicksearch may render as an OR of _ilikes. Default: on for Hasura only, and never without filter.

paginate: Option<bool>

limit:/offset: may be rendered. Default: off.

count: CountMode

How a count is taken; see CountMode.

Implementations

impl Supports

pub fn with_filter(self, on: bool) -> Self

Set filter.

pub fn with_order(self, on: bool) -> Self

Set order.

pub fn with_search(self, on: bool) -> Self

Set search.

pub fn with_paginate(self, on: bool) -> Self

Set paginate.

pub fn with_count(self, count: CountMode) -> Self

Set count.

Trait Implementations

impl Clone for Supports

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Supports

impl Debug for Supports

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

Formats the value using the given formatter.

impl Default for Supports

fn default() -> Self

Returns the “default value” for a type.