aragog 0.10.1

A simple lightweight object-document mapper for ArangoDB
Documentation 
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use std::fmt::Display;

pub use {
    comparison::Comparison, comparison::ComparisonBuilder, filter::Filter, query::Query,
    query::SortDirection, query_result::JsonQueryResult, query_result::RecordQueryResult,
};

mod comparison;
mod filter;
mod graph_query;
mod operations;
mod query;
mod query_id_helper;
mod query_result;

#[derive(Clone, Debug)]
struct OptionalQueryString(Option<String>);

fn string_array_from_array<T>(array: &[T]) -> String
where
    T: Display,
{
    format!("[{}]", string_from_array(array))
}

fn string_from_array<T>(array: &[T]) -> String
where
    T: Display,
{
    let mut array_str = String::new();
    for (i, element) in array.iter().enumerate() {
        array_str = format!("{}{}", array_str, element);
        if i < array.len() - 1 {
            array_str += ", "
        }
    }
    array_str
}

fn string_array_from_array_str<T>(array: &[T]) -> String
where
    T: Display,
{
    let mut array_str = String::from("[");
    for (i, element) in array.iter().enumerate() {
        array_str = format!(r#"{}"{}""#, array_str, element);
        if i < array.len() - 1 {
            array_str += ", "
        }
    }
    array_str += "]";
    array_str
}

impl ToString for OptionalQueryString {
    fn to_string(&self) -> String {
        match &self.0 {
            Some(str) => str.clone(),
            None => String::new(),
        }
    }
}