mirror of
https://github.com/Phundrak/georm.git
synced 2025-06-25 17:34:57 +00:00
Lucien Cartier-Tilet
19284665e6
Add support for entities with composite primary keys using multiple
#[georm(id)] fields. Automatically generates {EntityName}Id structs for
type-safe composite key handling.
Features:
- Multi-field primary key detection and ID struct generation
- Full CRUD operations (find, create, update, delete, create_or_update)
- Proper SQL generation with AND clauses for composite keys
- Updated documNtation in README and lib.rs
Note: Relationships not yet supported for composite key entities
108 lines
2.5 KiB
Rust
108 lines
2.5 KiB
Rust
use georm::Georm;
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#[derive(Debug, Georm, PartialEq, Eq, Default)]
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#[georm(
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table = "biographies",
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one_to_one = [{
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name = "author", remote_id = "biography_id", table = "authors", entity = Author
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}]
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)]
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pub struct Biography {
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#[georm(id)]
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pub id: i32,
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pub content: String,
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}
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#[derive(Debug, Georm, PartialEq, Eq, Default)]
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#[georm(table = "authors")]
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pub struct Author {
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#[georm(id)]
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pub id: i32,
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pub name: String,
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#[georm(relation = {entity = Biography, table = "biographies", name = "biography", nullable = true})]
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pub biography_id: Option<i32>,
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}
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impl PartialOrd for Author {
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fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
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Some(self.id.cmp(&other.id))
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}
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}
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impl Ord for Author {
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fn cmp(&self, other: &Self) -> std::cmp::Ordering {
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self.id.cmp(&other.id)
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}
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}
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#[derive(Debug, Georm, PartialEq, Eq, Default)]
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#[georm(
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table = "books",
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one_to_many = [
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{ name = "reviews", remote_id = "book_id", table = "reviews", entity = Review }
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],
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many_to_many = [{
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name = "genres",
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table = "genres",
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entity = Genre,
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link = { table = "book_genres", from = "book_id", to = "genre_id" }
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}]
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)]
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pub struct Book {
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#[georm(id)]
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ident: i32,
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title: String,
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#[georm(relation = {entity = Author, table = "authors", name = "author"})]
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author_id: i32,
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}
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impl PartialOrd for Book {
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fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
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Some(self.ident.cmp(&other.ident))
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}
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}
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impl Ord for Book {
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fn cmp(&self, other: &Self) -> std::cmp::Ordering {
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self.ident.cmp(&other.ident)
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}
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}
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#[derive(Debug, Georm, PartialEq, Eq)]
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#[georm(table = "reviews")]
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pub struct Review {
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#[georm(id)]
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pub id: i32,
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#[georm(relation = {entity = Book, table = "books", remote_id = "ident", name = "book"})]
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pub book_id: i32,
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pub review: String,
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}
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#[derive(Debug, Georm, PartialEq, Eq)]
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#[georm(
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table = "genres",
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many_to_many = [{
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name = "books",
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table = "books",
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entity = Book,
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remote_id = "ident",
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link = { table = "book_genres", from = "genre_id", to = "book_id" }
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}]
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)]
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pub struct Genre {
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#[georm(id)]
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id: i32,
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name: String,
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}
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#[derive(Debug, Georm, PartialEq, Eq, Default)]
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#[georm(table = "UserRoles")]
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pub struct UserRole {
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#[georm(id)]
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pub user_id: i32,
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#[georm(id)]
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pub role_id: i32,
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#[georm(defaultable)]
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pub assigned_at: chrono::DateTime<chrono::Utc>,
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}
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