From b4c7c3cd480e626ac78b49ab91a95340ccfef26a Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Wed, 30 Jun 2021 15:58:48 -0600
Subject: finish inserting save_mut for models

---
 tosin-macros/src/lib.rs | 33 +++++++++++++++++++++++++--------
 1 file changed, 25 insertions(+), 8 deletions(-)

(limited to 'tosin-macros')

diff --git a/tosin-macros/src/lib.rs b/tosin-macros/src/lib.rs
index ff62f3d..1019540 100644
--- a/tosin-macros/src/lib.rs
+++ b/tosin-macros/src/lib.rs
@@ -82,17 +82,24 @@ fn to_field_spec(field: &syn::Field) -> FieldInfo<impl quote::ToTokens> {
         }
     } else if field_type == &parse_type("Id") {
         // TODO foreign key constraint
+        FieldInfo {
+            tosin_field: quote! { ::tosin::db::models::Field::IntField { name: stringify!(#field_name) } },
+            diesel_column: quote! { #field_name -> BigInt },
+            diesel_type: quote! { ::tosin::db::sql_types::BigInt },
+        }
+    } else if field_type == &parse_type("u64") {
+        // TODO allow at all since some dbs can't express that type
         FieldInfo {
             tosin_field: quote! { ::tosin::db::models::Field::IntField { name: stringify!(#field_name) } },
             diesel_column: quote! { #field_name -> Integer },
             diesel_type: quote! { ::tosin::db::sql_types::Integer },
         }
-    } else if field_type == &parse_type("usize") {
+    } else if field_type == &parse_type("i64") {
         // TODO default
         FieldInfo {
             tosin_field: quote! { ::tosin::db::models::Field::IntField { name: stringify!(#field_name) } },
-            diesel_column: quote! { #field_name -> Integer },
-            diesel_type: quote! { ::tosin::db::sql_types::Integer },
+            diesel_column: quote! { #field_name -> BigInt },
+            diesel_type: quote! { ::tosin::db::sql_types::BigInt },
         }
     } else if field_type == &parse_type("String") {
         let max_length = model_options
@@ -211,13 +218,22 @@ fn impl_model(ast: &syn::DeriveInput) -> TokenStream {
                 }
             }
 
-            pub fn save_mut(&mut self, connection: &mut tosin::db::backend::Connection) {
+            pub fn save_mut(&mut self, connection: &tosin::db::backend::Connection) {
+                use diesel::prelude::*;
                 if self.id.is_none() {
                     // no id yet, so not from db, so insert
-                    let new_self = tosin::db::insert_into(#lowercase_name::table)
-                        .values(&self)
-                        .get_result(connection)
-                        .expect("error saving to database"); // TODO propagate error
+                    // unfortunately InsertStatement::get_result is only supported on pg for now,
+                    // so we have to pull this shit
+                    let new_self = tosin::db::backend::insert_and_retrieve::<
+                        Self, // row
+                        #lowercase_name::table, // table
+                        #lowercase_name::id, // id
+                    >(
+                        self,
+                        #lowercase_name::table,
+                        connection,
+                        #lowercase_name::id
+                    );
                     *self = new_self;
                 } else {
                     todo!("update existing db item");
@@ -246,6 +262,7 @@ fn impl_model(ast: &syn::DeriveInput) -> TokenStream {
             type Values = <(#(#insertable_types,)*) as tosin::db::Insertable<#lowercase_name::table>>::Values;
 
             fn values(self) -> Self::Values {
+                use diesel::ExpressionMethods;
                 (#(#insertable_values,)*).values()
             }
         }
-- 
cgit v1.2.3