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Introduce RowIndex trait (like in rust-postgres)

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This commit is contained in:
gwenn
2016-01-02 12:13:37 +01:00
parent 38cf8d597b
commit 12f26e78b3
6 changed files with 126 additions and 72 deletions
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7
src/error.rs
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@@ -48,6 +48,10 @@ pub enum Error {
/// for the statement.
InvalidColumnIndex(c_int),
/// Error when the value of a named column is requested, but no column matches the name
/// for the statement.
InvalidColumnName(String),
/// Error when the value of a particular column is requested, but the type of the result in
/// that column cannot be converted to the requested Rust type.
InvalidColumnType,
@@ -91,6 +95,7 @@ impl fmt::Display for Error {
&Error::QueryReturnedNoRows => write!(f, "Query returned no rows"),
&Error::GetFromStaleRow => write!(f, "Attempted to get a value from a stale row"),
&Error::InvalidColumnIndex(i) => write!(f, "Invalid column index: {}", i),
&Error::InvalidColumnName(ref name) => write!(f, "Invalid column name: {}", name),
&Error::InvalidColumnType => write!(f, "Invalid column type"),
#[cfg(feature = "functions")]
@@ -116,6 +121,7 @@ impl error::Error for Error {
&Error::QueryReturnedNoRows => "query returned no rows",
&Error::GetFromStaleRow => "attempted to get a value from a stale row",
&Error::InvalidColumnIndex(_) => "invalid column index",
&Error::InvalidColumnName(_) => "invalid column name",
&Error::InvalidColumnType => "invalid column type",
#[cfg(feature = "functions")]
@@ -138,6 +144,7 @@ impl error::Error for Error {
&Error::QueryReturnedNoRows => None,
&Error::GetFromStaleRow => None,
&Error::InvalidColumnIndex(_) => None,
&Error::InvalidColumnName(_) => None,
&Error::InvalidColumnType => None,
#[cfg(feature = "functions")]