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Questions - rust-diesel

optional update statements in diesel using into_boxed()

When I run below code it compiles but it won't update any todo item and affected_rows is equal to 0. What I'm doing wrong here? Note: I checked official documentation and I didn't find any solution......
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Hasan Parasteh

rust

rust-diesel

Votes: 0

Answers: 1

Latest Answer

I found the solution. I was doing the whole thing wrong and the right concept is to use AsChangeset in order to update rows in database; For any one reading this: The right approach is to use an Optio...
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Hasan Parasteh

how to do a count query when using rust diesel

I am doing a count query using rust 1.59.0 diesel diesel = { version = "1.4.8", features = ["postgres","64-column-tables","chrono"] } following this document, t...
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Dolphin

rust

rust-diesel

Votes: 0

Answers: 1

Latest Answer

first thing you must know it's query count return i64 not i32, so you must convert i64 to i32 by your self maybe like this let query_result = query.select(count(id)).first(&connection).map(|x| x a...
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Ali Mirghasemi

Rust can't resolve import from crate root but module is there with child modules available

I am trying to create a basic crud app with actix and diesel but there is a problem with diesel. This is the folder structure of project: |─ migrations |─ src | ├─ users | ├─mod.rs | ├─models.rs |─ ...
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Amir Heidari

rust

rust-diesel

rust-crates

Votes: 0

Answers: 1

Latest Answer

Just found that I have to import schema module in a file called lib.rs (create it if it's not present): src/lib.rs pub mod schema; #[macro_use] extern crate diesel; so it will be accessible with use...
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Amir Heidari

why the diesel new pagination sql did not work

I am using diesel diesel = { version = "1.4.8", features = ["postgres","64-column-tables","chrono"] } to do a pagination with rust 1.59.0, this is the key part...
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Dolphin

postgresql

rust

rust-diesel

Votes: 0

Answers: 1

Latest Answer

I finally found using this code block generates the SQL command in the wrong format, tweaking the code like this will fix it: pub fn handle_big_table_query<T: QueryFragment<Pg>>(this: &...
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Dolphin

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