rustyroad 1.8.7

Rusty Road is a framework written in Rust that is based on Ruby on Rails. It is designed to provide the familiar conventions and ease of use of Ruby on Rails, while also taking advantage of the performance and efficiency of Rust.
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use super::super::super::alter::{clean, qualified};
use super::super::super::SqlOperation;
use regex::Regex;

fn raw(stmt: &str) -> Vec<SqlOperation> {
    vec![SqlOperation::RawSql {
        sql: stmt.to_string(),
    }]
}

pub(in crate::database::migrations::sql_migration_converter::objects) fn parse(
    stmt: &str,
) -> Option<Vec<SqlOperation>> {
    let pattern = Regex::new(&format!(
        r"(?is)^CREATE\s+(?:OR\s+REPLACE\s+)?FUNCTION\s+({})\s*\((.*?)\)\s*(?:RETURNS|AS|LANGUAGE|$)",
        qualified()
    ))
    .unwrap();
    let captures = pattern.captures(stmt)?;
    let name = clean(&captures[1]);
    if !captures[2].trim().is_empty() {
        return Some(raw(stmt));
    }
    Some(vec![SqlOperation::Cleanup {
        summary: format!("CREATE FUNCTION {name}()"),
        down_sql: format!("DROP FUNCTION IF EXISTS {name}();"),
    }])
}