40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
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use crate::{common, StructAttributes};
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use proc_macro2::Ident;
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use quote::quote;
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use syn::Expr;
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pub(crate) fn derive_diesel_crud_update_impl(
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StructAttributes { table, update, .. }: &StructAttributes,
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identifier: &Ident,
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) -> proc_macro2::TokenStream {
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let body = function_body(table);
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let return_type = common::return_type(quote! { usize });
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quote! {
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#[automatically_derived]
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impl lib::diesel_crud_trait::DieselCrudUpdate for #identifier {
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type Update = #update;
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fn update<'a, 'b>(&'a self, update: Self::Update) -> #return_type
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where
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Self: Sync + 'a,
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'a: 'b,
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{
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Box::pin(async move {
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#body
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})
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}
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}
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}
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}
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fn function_body(table: &Expr) -> proc_macro2::TokenStream {
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common::function_body(quote! {
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diesel_async::RunQueryDsl::execute(
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diesel::dsl::update(#table::table::table()).set(update),
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&mut connection,
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)
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.await
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.map_err(Into::into)
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})
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}
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