Port crate/versions over to use Diesel

Author: sgrif

src/krate.rs

@@ -1406,9 +1406,10 @@ pub fn following(req: &mut Request) -> CargoResult<Response> {
 // this information already, but ember is definitely requesting it
 pub fn versions(req: &mut Request) -> CargoResult<Response> {
     let crate_name = &req.params()["crate_id"];
-    let tx = req.tx()?;
-    let krate = Crate::find_by_name(tx, crate_name)?;
-    let versions = krate.versions(tx)?;
+    let conn = req.db_conn()?;
+    let krate = Crate::by_name(crate_name).first::<Crate>(&*conn)?;
+    let mut versions = Version::belonging_to(&krate).load::<Version>(&*conn)?;
+    versions.sort_by(|a, b| b.num.cmp(&a.num));
     let versions = versions
         .into_iter()
         .map(|v| v.encodable(crate_name))

src/tests/krate.rs

@@ -410,16 +410,16 @@ fn show() {
 fn versions() {
     let (_b, app, middle) = ::app();
 
-    let v100 = semver::Version::parse("1.0.0").unwrap();
-    let v050 = semver::Version::parse("0.5.0").unwrap();
-    let v051 = semver::Version::parse("0.5.1").unwrap();
-
-    let mut req = ::req(app, Method::Get, "/api/v1/crates/foo_versions/versions");
-    ::mock_user(&mut req, ::user("foo"));
-
-    ::mock_crate_vers(&mut req, ::krate("foo_versions"), &v051);
-    ::mock_crate_vers(&mut req, ::krate("foo_versions"), &v100);
-    ::mock_crate_vers(&mut req, ::krate("foo_versions"), &v050);
+    let mut req = ::req(app.clone(), Method::Get, "/api/v1/crates/foo_versions/versions");
+    {
+        let conn = app.diesel_database.get().unwrap();
+        let u = ::new_user("foo").create_or_update(&conn).unwrap();
+        ::CrateBuilder::new("foo_versions", u.id)
+            .version("0.5.1")
+            .version("1.0.0")
+            .version("0.5.0")
+            .expect_build(&conn);
+    }
 
     let mut response = ok_resp!(middle.call(&mut req));
     let json: VersionsList = ::json(&mut response);