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sqlite - Rust Diesel 未构建错误使用未声明的 crate 或模块

转载 作者:行者123 更新时间:2023-12-03 11:38:04 26 4
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我正在尝试创建我的第一个具有数据库支持的 Rust 应用程序,我正在使用 Diesel 和 SQLite,每当我构建我的应用程序时,我都会收到以下错误消息:

failed to resolve: use of undeclared crate or module `categorys`
--> src/models.rs:14:12
|
14 | pub struct Category {
| ^^^^^^^^ use of undeclared crate or module `categorys`

error[E0433]: failed to resolve: use of undeclared crate or module `correspondents`
--> src/models.rs:21:12
|
21 | pub struct Correspondent {
| ^^^^^^^^^^^^^ use of undeclared crate or module `correspondents`

error[E0433]: failed to resolve: use of undeclared crate or module `doctypes`
--> src/models.rs:27:12
|
27 | pub struct Doctype {
| ^^^^^^^ use of undeclared crate or module `doctypes`

error[E0433]: failed to resolve: use of undeclared crate or module `documents`
--> src/models.rs:37:12
|
37 | pub struct Document {
| ^^^^^^^^ use of undeclared crate or module `documents`

error: aborting due to 4 previous errors
我的 cargo.toml :
[package]
name = "Rekorder"
version = "0.1.0"
authors = ["ossama"]
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
diesel = { version = "1.4.4", features = ["sqlite"] }
diesel_cli_ext = "0.3.6"
dotenv = "0.15.0"
chrono = "0.4"

[dependencies.gtk]
version = "0.9.0"
features = ["v3_16"]

[dependencies.gio]
version = ""
features = ["v2_44"]
我的 models.rs :
// Generated by diesel_ext

#![allow(unused)]
#![allow(clippy::all)]


use chrono::NaiveDate;
use diesel::Queryable;
use diesel::Identifiable;
use diesel::sql_types::Binary;


#[derive(Queryable, Debug, Identifiable)]
pub struct Category {
pub id: i32,
pub name: String,
pub color: Option<i32>,
}

#[derive(Queryable, Debug, Identifiable)]
pub struct Correspondent {
pub id: i32,
pub name: String,
}

#[derive(Queryable, Debug, Identifiable)]
pub struct Doctype {
pub id: i32,
pub name: String,
pub correspondent_name: Option<String>,
pub support_extra_date_number: Option<bool>,
pub icon: Option<Binary>,
}

#[derive(Queryable, Debug, Identifiable)]
#[primary_key(number, date_of_document, doc_type_id)]
pub struct Document {
pub number: i32,
pub date_of_document: NaiveDate,
pub doc_type_id: i32,
pub extra_number: Option<String>,
pub extra_date: Option<NaiveDate>,
pub correspondent_id: i32,
pub content: String,
pub notes: Option<String>,
pub category_id: Option<i32>,
pub document_file_name: Option<String>,
pub document_file_size: Option<i32>,
pub document_file: Option<Binary>,
}
我的 schema.rs :
table! {
category (id) {
id -> Integer,
name -> Text,
color -> Nullable<Integer>,
}
}

table! {
correspondent (id) {
id -> Integer,
name -> Text,
}
}

table! {
doctype (id) {
id -> Integer,
name -> Text,
correspondent_name -> Nullable<Text>,
support_extra_date_number -> Nullable<Bool>,
icon -> Nullable<Binary>,
}
}

table! {
document (number, date_of_document, doc_type_id) {
number -> Integer,
date_of_document -> Date,
doc_type_id -> Integer,
extra_number -> Nullable<Text>,
extra_date -> Nullable<Date>,
correspondent_id -> Integer,
content -> Text,
notes -> Nullable<Text>,
category_id -> Nullable<Integer>,
document_file_name -> Nullable<Text>,
document_file_size -> Nullable<Integer>,
document_file -> Nullable<Binary>,
}
}

joinable!(document -> category (category_id));
joinable!(document -> correspondent (correspondent_id));
joinable!(document -> doctype (doc_type_id));

allow_tables_to_appear_in_same_query!(
category,
correspondent,
doctype,
document,
);
最后是我的 main.rs :
mod models;
fn main() {

println!("Hello, world!");
}
我尝试添加 use schema::*给我的 model.rs没有成功,因为没有找到模型。
我也试过 this solution没有成功。
我无法使用正确的范围,我不熟悉 rust,我仍然习惯它的范例

最佳答案

Diesel 假定您的表名是结构名称的复数形式。因为您的表名不遵循此约定,您可以明确指定表名:

#[derive(Queryable, Identifiable)]
#[table_name = "category"]
pub struct Category {
// ...
}

#[derive(Queryable, Identifiable)]
#[table_name = "correspondent"]
pub struct Correspondent {
// ...
}

// and do the same to the rest of your models...

关于sqlite - Rust Diesel 未构建错误使用未声明的 crate 或模块,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/66398071/

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