Macro diesel::infer_table_from_schema
[−]
[src]
macro_rules! infer_table_from_schema { ($database_url: expr, $table_name: expr) => { ... }; }
Establishes a database connection at compile time, loads the schema information about a table's
columns, and invokes table!
for you automatically.
Attempting to use the env!
or dotenv!
macros here will not work due to limitations of the
Macros 1.1 system, but you can pass a string in the form "env:SOME_ENV_VAR"
or
"dotenv:SOME_ENV_VAR"
to achieve the same effect.
At this time, the schema inference macros do not support types from third party crates, and having any columns with a type not supported by the diesel core crate will result in a compiler error (please open an issue if this happens unexpectedly for a type listed in our docs.)
This macro can only be used in combination with the diesel_codegen
or
diesel_codegen_syntex
crates. It will not work on its own.