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Fix compilation & warnings

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This commit is contained in:
folex
2019-08-19 10:56:18 +03:00
parent 3314751305
commit 2a150458a3
3 changed files with 39 additions and 16 deletions
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9
backend-rust/step1-json-api/src/model.rs
View File

@ -11,12 +11,17 @@ pub fn add_post(message: String, username: String) -> AppResult<()> {
} }
pub fn get_all_posts(offset: u32, count: u32) -> AppResult<String> { pub fn get_all_posts(offset: u32, count: u32) -> AppResult<String> {
log::info!("get all posts"); log::info!("get all posts {} {}", offset, count);
Ok("[]".to_string()) Ok("[]".to_string())
} }
pub fn get_posts_by_username(username: String, offset: u32, count: u32) -> AppResult<String> { pub fn get_posts_by_username(username: String, offset: u32, count: u32) -> AppResult<String> {
log::info!("get all posts by username {}", username); log::info!(
"get all posts by username {} {} {}",
username,
offset,
count
);
Ok("[]".to_string()) Ok("[]".to_string())
} }

23
backend-rust/step2-database-only/src/database.rs
View File

@ -4,12 +4,21 @@ use crate::sqlite;
pub fn query(query: &str) -> AppResult<String> { pub fn query(query: &str) -> AppResult<String> {
let response = sqlite::call(query.as_bytes()); let response = sqlite::call(query.as_bytes());
// Add more details to error message // Decode query result to a utf8 string
String::from_utf8(response).map_err(|e| { let result_str = std::str::from_utf8(&response);
// Log if there's an error
if result_str.is_err() {
log::error!("unable to decode result from bytes: {:#x?}", response); log::error!("unable to decode result from bytes: {:#x?}", response);
err_msg(&format!( }
"unable to decode result from bytes {:#x?}: {}",
query, e // Wrap error with a better message, and return Result
)) result_str
}) .map_err(|e| {
err_msg(&format!(
"unable to decode result from bytes {:#x?}: {}",
response, e
))
})
.map(|s| s.to_string())
} }

23
backend-rust/step3-finished-app/src/database.rs
View File

@ -4,12 +4,21 @@ use crate::sqlite;
pub fn query(query: &str) -> AppResult<String> { pub fn query(query: &str) -> AppResult<String> {
let response = sqlite::call(query.as_bytes()); let response = sqlite::call(query.as_bytes());
// Add more details to error message // Decode query result to a utf8 string
String::from_utf8(response).map_err(|e| { let result_str = std::str::from_utf8(&response);
// Log if there's an error
if result_str.is_err() {
log::error!("unable to decode result from bytes: {:#x?}", response); log::error!("unable to decode result from bytes: {:#x?}", response);
err_msg(&format!( }
"unable to decode result from bytes {:#x?}: {}",
query, e // Wrap error with a better message, and return Result
)) result_str
}) .map_err(|e| {
err_msg(&format!(
"unable to decode result from bytes {:#x?}: {}",
response, e
))
})
.map(|s| s.to_string())
} }