rpa_derives/database/rpa/
delete.rs

1/**
2    Rpa (Rust Persistence API) Derive Delete Partial implementation.
3    Copyright (C) 2019  Jonathan Franco
4
5    This program is free software: you can redistribute it and/or modify
6    it under the terms of the GNU Lesser General Public License as published by
7    the Free Software Foundation, either version 3 of the License, or
8    (at your option) any later version.
9
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public License
16    along with this program.  If not, see <https://www.gnu.org/licenses/>.
17**/
18
19use quote::quote;
20
21pub fn get_impl(type_name: &syn::Ident, table_name: &syn::Ident) -> proc_macro2::TokenStream {
22    quote! {
23        fn delete(entity_id: &String, connection: &DatabaseConnection) -> Result<usize, RpaError> {
24            let error_message: String = format!("A problem has occurred deleting {} with id {}", stringify!(#type_name), entity_id);
25            let result = diesel::delete(#table_name::table.find(entity_id)).execute(connection);
26            RpaError::map_result::<usize>(error_message, result)
27        }
28        fn delete_self(self: Self, connection: &DatabaseConnection) -> Result<usize, RpaError> {
29            let error_message: String = format!("A problem has occurred updating {} with id {}", stringify!(#type_name), &self.id);
30            let result = diesel::delete(#table_name::table.find(&self.id)).execute(connection);
31            RpaError::map_result::<usize>(error_message, result)
32        }
33    }
34}
rpa_derives/database/rpa/delete.rs

rpa_derives/database/rpa/
delete.rs
