greg/mentat
1
0
Fork 0
Code Issues 294 Pull requests Projects Releases 9 Packages Wiki Activity

And some more.

Browse source
This commit is contained in:
Richard Newman 2018-02-05 17:17:30 -08:00
parent 44168680f5
commit 877c683089
1 changed files with 14 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
tolstoy/src/tx_processor.rs
View file

@ -18,7 +18,6 @@ use errors::{
};
use mentat_db::{
entids,
TypedSQLValue,
};
@ -121,6 +120,16 @@ where T: Sized + Iterator<Item=Result<TxPart>> + 't {
}
}
fn to_tx_part(row: &::rusqlite::Row) -> Result<TxPart> {
Ok(TxPart {
e: row.get(0),
a: row.get(1),
v: TypedValue::from_sql_value_pair(row.get(2), row.get(5))?,
tx: row.get(3),
added: row.get(4),
})
}
impl Processor {
pub fn process<R>(sqlite: &rusqlite::Connection, receiver: &mut R) -> Result<()>
where R: TxReceiver {
@ -128,20 +137,9 @@ impl Processor {
"SELECT e, a, v, tx, added, value_type_tag FROM transactions ORDER BY tx"
)?;
let mut rows = stmt.query_and_then(&[], |row| -> Result<TxPart> {
Ok(TxPart {
e: row.get(0),
a: row.get(1),
v: TypedValue::from_sql_value_pair(row.get(2), row.get(5))?,
tx: row.get(3),
added: row.get(4),
})
})?;
let mut rows = stmt.query_and_then(&[], to_tx_part)?.peekable();
let mut current_tx = None;
let mut peekable = rows.peekable();
while let Some(row) = peekable.next() {
while let Some(row) = rows.next() {
let datom = row?;
// if current_tx == Some(row.tx)
@ -153,7 +151,7 @@ impl Processor {
current_tx = Some(datom.tx);
receiver.tx(
datom.tx,
&mut DatomsIterator::new(&datom, &mut peekable)
&mut DatomsIterator::new(&datom, &mut rows)
)?;
continue;
}
@ -162,7 +160,7 @@ impl Processor {
current_tx = Some(datom.tx);
receiver.tx(
datom.tx,
&mut DatomsIterator::new(&datom, &mut peekable)
&mut DatomsIterator::new(&datom, &mut rows)
)?;
}
}