Modularize, Model trait, list_owners

src/models/model.rs

@@ -0,0 +1,28 @@
+use anyhow::{anyhow, Result};
+use async_trait::async_trait;
+use sqlx::postgres::PgPool;
+use url::Url;
+
+use super::ListParams;
+
+#[async_trait]
+pub trait Model
+where
+    Self: std::marker::Sized,
+{
+    fn resource_name() -> &'static str;
+    fn pk(&self) -> Option<i32>;
+    fn url(&self, api_url: &Url) -> Result<Url> {
+        if let Some(pk) = self.pk() {
+            Ok(api_url.join(&format!("/{}s/{}", Self::resource_name(), pk))?)
+        } else {
+            Err(anyhow!(
+                "Cannot get URL for {} with no primary key",
+                Self::resource_name()
+            ))
+        }
+    }
+    async fn get(db: &PgPool, id: i32) -> Result<Self>;
+    async fn save(self, db: &PgPool) -> Result<Self>;
+    async fn list(db: &PgPool, list_params: ListParams) -> Result<Vec<Self>>;
+}