// Compile takes an expression and compiles it to a where clause for use with gorm.DB.Where()
// Returns the number of expected parameters for the query and a slice of errors if something goes wrong
func Compile(where criteria.Expression) (whereClause string, parameters []interface{}, err []error) {
criteria.IteratePostOrder(where, bubbleUpJSONContext)
compiler := newExpressionCompiler()
compiled := where.Accept(&compiler)
return compiled.(string), compiler.parameters, compiler.err
}
