order

backend/src/documents/mod.rs

@@ -2,5 +2,8 @@ pub mod asset;
 pub mod correspondents;
 pub mod folders;
 pub mod metadata;
+pub mod ordering;
 pub mod search;
 pub mod tags;
+
+pub use ordering::{DocumentSortField, SortDirection};

backend/src/documents/ordering.rs

@@ -0,0 +1,58 @@
+use serde::{Deserialize, Serialize};
+use utoipa::ToSchema;
+
+pub const UNICODE_COLLATION_NAME: &str = "unicode_ci";
+pub const UNICODE_COLLATION_LOCALE: &str = "und-u-ks-level2";
+
+const TITLE_ASC: &str = "title COLLATE \"unicode_ci\" ASC";
+const TITLE_DESC: &str = "title COLLATE \"unicode_ci\" DESC";
+const ISSUED_AT_ASC: &str = "issued_at ASC NULLS LAST";
+const ISSUED_AT_DESC: &str = "issued_at DESC NULLS LAST";
+const CREATED_AT_ASC: &str = "created_at ASC";
+const CREATED_AT_DESC: &str = "created_at DESC";
+const UPDATED_AT_ASC: &str = "updated_at ASC";
+const UPDATED_AT_DESC: &str = "updated_at DESC";
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Deserialize, Serialize, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum DocumentSortField {
+    Title,
+    IssuedAt,
+    CreatedAt,
+    UpdatedAt,
+}
+
+impl Default for DocumentSortField {
+    fn default() -> Self {
+        DocumentSortField::Title
+    }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Deserialize, Serialize, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum SortDirection {
+    Asc,
+    Desc,
+}
+
+impl Default for SortDirection {
+    fn default() -> Self {
+        SortDirection::Asc
+    }
+}
+
+pub fn ordering_clauses(
+    field: DocumentSortField,
+    direction: SortDirection,
+) -> (&'static str, Option<&'static str>) {
+    match (field, direction) {
+        (DocumentSortField::Title, SortDirection::Asc) => (TITLE_ASC, None),
+        (DocumentSortField::Title, SortDirection::Desc) => (TITLE_DESC, None),
+        (DocumentSortField::IssuedAt, SortDirection::Asc) => (ISSUED_AT_ASC, Some(TITLE_ASC)),
+        (DocumentSortField::IssuedAt, SortDirection::Desc) => (ISSUED_AT_DESC, Some(TITLE_ASC)),
+        (DocumentSortField::CreatedAt, SortDirection::Asc) => (CREATED_AT_ASC, Some(TITLE_ASC)),
+        (DocumentSortField::CreatedAt, SortDirection::Desc) => (CREATED_AT_DESC, Some(TITLE_ASC)),
+        (DocumentSortField::UpdatedAt, SortDirection::Asc) => (UPDATED_AT_ASC, Some(TITLE_ASC)),
+        (DocumentSortField::UpdatedAt, SortDirection::Desc) => (UPDATED_AT_DESC, Some(TITLE_ASC)),
+    }
+}