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SDK - Allow ordering by columns in the documents table #1462

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Merged
SilasMarvin merged 1 commit into from
May 13, 2024
Merged

SDK - Allow ordering by columns in the documents table #1462

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21 changes: 20 additions & 1 deletion pgml-sdks/pgml/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1584,7 +1584,6 @@ mod tests {
"nested_number": {
"number": 3
},

"tie": 2,
})
.into(),
Expand Down Expand Up @@ -1646,6 +1645,26 @@ mod tests {
.collect::<Vec<_>>(),
vec![1, 2, 3]
);
let documents = collection
.get_documents(Some(json!({"order_by": { "COLUMN_id": "desc"}}).into()))
.await?;
assert_eq!(
documents
.iter()
.map(|d| d["row_id"].as_i64().unwrap())
.collect::<Vec<_>>(),
vec![3, 2, 1]
);
let documents = collection
.get_documents(Some(json!({"order_by": { "COLUMN_id": "asc"}}).into()))
.await?;
assert_eq!(
documents
.iter()
.map(|d| d["row_id"].as_i64().unwrap())
.collect::<Vec<_>>(),
vec![1, 2, 3]
);
collection.archive().await?;
Ok(())
}
Expand Down
29 changes: 19 additions & 10 deletions pgml-sdks/pgml/src/order_by_builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,26 +7,30 @@ pub(crate) struct OrderByBuilder<'a> {
column_name: &'a str,
}

fn str_to_order(order: &str) -> anyhow::Result<Order> {
match order {
"asc" | "ASC" => Ok(Order::Asc),
"desc" | "DESC" => Ok(Order::Desc),
_ => anyhow::bail!("Invalid `order_by`. Please refer to examples in the documentation for correct `order_by` syntax"),
}
}

fn build_recursive_access(key: &str, value: &serde_json::Value) -> anyhow::Result<(String, Order)> {
if value.is_object() {
let (new_key, new_value) = value
.as_object()
.unwrap()
.iter()
.next()
.context("Invalid order by")?;
.context("Invalid `order_by`. Please refer to examples in the documentation for correct `order_by` syntax")?;
let (path, order) = build_recursive_access(new_key, new_value)?;
let path = format!("{},{}", key, path);
Ok((path, order))
} else if value.is_string() {
let order = match value.as_str().unwrap() {
"asc" | "ASC" => Order::Asc,
"desc" | "DESC" => Order::Desc,
_ => return Err(anyhow::anyhow!("Invalid order by")),
};
let order = str_to_order(value.as_str().unwrap())?;
Ok((key.to_string(), order))
} else {
Err(anyhow::anyhow!("Invalid order by"))
Err(anyhow::anyhow!("Invalid `order_by`. Please refer to examples in the documentation for correct `order_by` syntax"))
}
}

Expand All @@ -42,17 +46,22 @@ impl<'a> OrderByBuilder<'a> {
pub fn build(self) -> anyhow::Result<Vec<(SimpleExpr, Order)>> {
self.filter
.as_object()
.context("Invalid order by")?
.context("`order_by` must be an object")?
.iter()
.map(|(k, v)| {
if let Ok((path, order)) = build_recursive_access(k, v) {
if k.starts_with("COLUMN_") {
Ok((
Expr::cust(k.replace("COLUMN_", "")),
str_to_order(v.as_str().context("Invalid `order_by`. Please refer to examples in the documentation for correct `order_by` syntax")?)?,
))
} else if let Ok((path, order)) = build_recursive_access(k, v) {
let expr = Expr::cust(format!(
"\"{}\".\"{}\"#>'{{{}}}'",
self.table_name, self.column_name, path
));
Ok((expr, order))
} else {
Err(anyhow::anyhow!("Invalid order by"))
Err(anyhow::anyhow!("Invalid `order_by`. Please refer to examples in the documentation for correct `order_by` syntax"))
}
})
.collect()
Expand Down