sort_str_to_sql 0.0.1

Convert Sort Expression to SQL that can be used in 'ORDER BY' statement, e.g. '-aired,id' -> 'aird DESC NULLS LAST, id ASC NULLS LAST'.
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# Sort String To SQL

This is a rust crate to convert 'sort expressions' to SQL expressions that can be used in an 'ORDER BY'. E.g., `-date,id` will be converted `date DESC NULLS LAST, id ASC NULLS LAST`.

It can be used to parse a query parameter for sorting and to easily convert it to an expression that can be used in an SQL query.

I'm only using this with Postgres myself, so I can't promise you it will work with other databases.

[![Build Status](https://travis-ci.org/killercup/rust-sortStringToSql.svg)](https://travis-ci.org/killercup/rust-sortStringToSql)

```toml
# Cargo.toml
[dependencies.toml]
git = "https://github.com/killercup/rust-sortStringToSql"
```

## Input Format

Comma separated list of field names. Prepend a '-' for descending order or a '+' dor ascending order (which is the default, so it's optional). Append a '-' if you want records with `null` values first (this sets `NULLS FIRST`).

You can find some examples in `test.js`.

## License

MIT