diesel-rs/diesel

"Identifier" column in table macro results in "Missing lifetime specifier"

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#1,651 建立於 2018年4月20日

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 (5 留言) (0 反應) (0 負責人)Rust (12,054 star) (1,003 fork)batch import
documentationhelp wanted

描述

I was able to fix this using #[sql_name=“...”] but the error is not clear about what's really going on, and I found sql_name by searching through tickets, not through official documentation.

This seems like the sort of thing someone could get stuck on.

It was Nullable type if relevant.

貢獻者指南

技術棧
rust
領域
backenddatabase
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
basic Rustunderstanding of macros
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
Investigate the diesel table macro in `diesel/src/table.rs` to understand how column names are parsed and why 'Identifier' triggers a missing lifetime specifier error. Look at the macro expansion to see where the lifetime is expected but not provided. Improve the error message to suggest using `#[sql name="..."]` as a workaround, and consider adding a check for reserved words or invalid identifiers.
"Identifier" column in table macro results in "Missing lifetime specifier" · diesel-rs/diesel#1651 | Good First Issue