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This is a refactoring in preparation for ad-hoc join clauses. I'm imagining the API being roughly `lhs.inner_join(rhs.on(on_clause))`, which will mean we will have a struct containing the rhs and the on clause. The `JoinTo` impl for this struct will need to just destructure it and return those pieces, so this sets up the trait changes for all existing implementations. I had to bump clippy as part of this change, as it hits a rustc bug that was fixed on more recent nightlies. However, I couldn't bump to the *latest* clippy, as recent nightlies are broken for us due to https://github.com/rust-lang/rust/issues/43153 |
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| README.md | ||
Diesel Codegen
This crate implements Diesel's procedural macros using the Macros 1.1 system. It
requires nightly Rust from October 10, 2016 or later. For usage on stable
Rust, see
diesel_codegen_syntex.
Diesel Codegen provides custom derive implementations for
Queryable, Identifiable,
Insertable, AsChangeset, and Associations.
It also provides the macros infer_schema!,
infer_table_from_schema!, and
embed_migrations!.
Using this crate
First, add this crate to Cargo.toml as so:
diesel_codegen = { version = "0.14.0", features = ["postgres"] }
If you are using SQLite, be sure to specify sqlite instead of postgres in
the features section.
Next, at the root of your crate add:
#[macro_use] extern crate diesel_codegen;
See the documentation for each trait/macro for additional details and configuration options.