Struct LazySql 

pub struct LazySql<F>
where
    F: Fn(DatabaseType) -> String,
{ /* private fields */ }

A lazily-generated SQL string that defers construction until needed.

This is useful when you may not need the SQL string (e.g., when caching is available, or when the query may be abandoned before execution).

Example

use prax_query::sql::{LazySql, DatabaseType};

// Create a lazy SQL generator
let lazy = LazySql::new(|db_type| {
    format!("SELECT * FROM users WHERE active = {}", db_type.placeholder(1))
});

// SQL is not generated until accessed
let sql = lazy.get(DatabaseType::PostgreSQL);
assert_eq!(sql, "SELECT * FROM users WHERE active = $1");

Implementations

impl<F> LazySql<F>

where F: Fn(DatabaseType) -> String,

pub const fn new(generator: F) -> Self

Create a new lazy SQL generator.

pub fn get(&self, db_type: DatabaseType) -> String

Generate the SQL string for the given database type.