supabase_client_graphql/
order.rs

1use serde_json::{json, Value};
2
3/// Ordering direction for GraphQL queries.
4///
5/// Maps to pg_graphql's `OrderByDirection` enum which includes null ordering.
6#[derive(Debug, Clone, PartialEq)]
7pub enum OrderByDirection {
8    AscNullsFirst,
9    AscNullsLast,
10    DescNullsFirst,
11    DescNullsLast,
12}
13
14impl OrderByDirection {
15    /// The pg_graphql enum literal value (e.g., `AscNullsFirst`).
16    pub fn as_graphql_literal(&self) -> &'static str {
17        match self {
18            OrderByDirection::AscNullsFirst => "AscNullsFirst",
19            OrderByDirection::AscNullsLast => "AscNullsLast",
20            OrderByDirection::DescNullsFirst => "DescNullsFirst",
21            OrderByDirection::DescNullsLast => "DescNullsLast",
22        }
23    }
24}
25
26/// An order-by clause entry.
27#[derive(Debug, Clone)]
28pub struct OrderByEntry {
29    pub column: String,
30    pub direction: OrderByDirection,
31}
32
33impl OrderByEntry {
34    /// Convert to a `serde_json::Value` for rendering.
35    ///
36    /// Produces `{ "column": "AscNullsLast" }` where the value is a GraphQL enum literal
37    /// that will be rendered unquoted by the render module.
38    pub fn to_value(&self) -> Value {
39        json!({ self.column.as_str(): self.direction.as_graphql_literal() })
40    }
41}
42
43#[cfg(test)]
44mod tests {
45    use super::*;
46
47    #[test]
48    fn order_by_asc_nulls_last() {
49        let entry = OrderByEntry {
50            column: "createdAt".into(),
51            direction: OrderByDirection::AscNullsLast,
52        };
53        assert_eq!(entry.to_value(), json!({"createdAt": "AscNullsLast"}));
54    }
55
56    #[test]
57    fn order_by_desc_nulls_first() {
58        let entry = OrderByEntry {
59            column: "name".into(),
60            direction: OrderByDirection::DescNullsFirst,
61        };
62        assert_eq!(entry.to_value(), json!({"name": "DescNullsFirst"}));
63    }
64
65    #[test]
66    fn graphql_literal_values() {
67        assert_eq!(OrderByDirection::AscNullsFirst.as_graphql_literal(), "AscNullsFirst");
68        assert_eq!(OrderByDirection::AscNullsLast.as_graphql_literal(), "AscNullsLast");
69        assert_eq!(OrderByDirection::DescNullsFirst.as_graphql_literal(), "DescNullsFirst");
70        assert_eq!(OrderByDirection::DescNullsLast.as_graphql_literal(), "DescNullsLast");
71    }
72}
supabase_client_graphql/order.rs

supabase_client_graphql/
order.rs
