welds-connections 0.4.23

An async ORM for (postgres, mssql, mysql, sqlite)
Documentation 
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use std::fmt::Display;

pub type Result<T> = std::result::Result<T, Error>;

#[derive(Debug)]
pub enum Error {
    #[cfg(any(feature = "mysql", feature = "sqlite", feature = "postgres"))]
    Sqlx(sqlx::Error),
    #[cfg(feature = "mssql")]
    TiberiusConnPool(std::io::Error),
    #[cfg(feature = "mssql")]
    Tiberius(tiberius::error::Error),
    #[cfg(feature = "sqlite-sync")]
    Rusqlite(rusqlite::Error),
    InvalidDatabaseUrl,
    RowNowFound,
    PoolError,
    ClosedTransaction,
    ColumnNotFound(String),
    UnexpectedNoneInColumn(String),
    JsonParseError(String, String),
}

impl std::error::Error for Error {}

impl Display for Error {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let message = match self {
            #[cfg(any(feature = "mysql", feature = "sqlite", feature = "postgres"))]
            Error::Sqlx(err) => err.to_string(),
            #[cfg(feature = "sqlite-sync")]
            Error::Rusqlite(err) => err.to_string(),
            #[cfg(feature = "mssql")]
            Error::TiberiusConnPool(err) => err.to_string(),
            #[cfg(feature = "mssql")]
            Error::Tiberius(err) => err.to_string(),
            Error::InvalidDatabaseUrl => "Invalid database URL. If your connection string is valid, make sure the feature for your database type is enabled".to_string(),
            Error::PoolError => "the MSSQL connection pool has a locked mutex".to_string(),
            Error::RowNowFound => "Row not found".to_string(),
            Error::ClosedTransaction => {
                "SQL can not be executed on a closed transaction".to_string()
            }
            Error::ColumnNotFound(name) => format!("Column not found: {name}"),
            Error::UnexpectedNoneInColumn(name) => format!("Unexpected None in column: {name}"),
            Error::JsonParseError(col, json) => {
                format!("unable to parse json in column: {col}. json: {json}")
            }
        };

        f.write_str(&message)?;
        Ok(())
    }
}

#[cfg(any(feature = "mysql", feature = "sqlite", feature = "postgres"))]
impl From<sqlx::error::Error> for Error {
    fn from(inner: sqlx::error::Error) -> Self {
        Error::Sqlx(inner)
    }
}

//  #[cfg(feature = "mssql")]
//  impl From<bb8_tiberius::Error> for Error {
//      fn from(inner: bb8_tiberius::Error) -> Self {
//          Error::TiberiusConnPool(inner)
//      }
//  }
//
//  #[cfg(feature = "mssql")]
//  impl<T> From<bb8::RunError<T>> for Error {
//      fn from(inner: bb8::RunError<T>) -> Self {
//          let inner = match inner {
//              bb8::RunError::TimedOut => "bb8 timeout",
//              bb8::RunError::User(_) => "bb8 user error",
//          };
//          Error::Bb8(inner)
//      }
//  }

#[cfg(feature = "mssql")]
impl From<tiberius::error::Error> for Error {
    fn from(inner: tiberius::error::Error) -> Self {
        Error::Tiberius(inner)
    }
}

#[cfg(feature = "sqlite-sync")]
impl From<rusqlite::Error> for Error {
    fn from(inner: rusqlite::Error) -> Self {
        Error::Rusqlite(inner)
    }
}