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//! Lockchain record handling module
//!
//! A record is a set of key-value store values with a header
use std::collections::BTreeMap;
use chrono::{Local, DateTime};
use serde_json;
/// A generic payload for a record
#[derive(Debug, Serialize, Deserialize, Eq, PartialEq, Clone)]
pub enum Payload {
Text(String),
Boolean(bool),
Number(i64),
BTreeMap(BTreeMap<String, Payload>),
}
/// The header of a record
///
/// Contains easily searchable fields of metadata. Nothing
/// in the Header should ever be considered secure as the
/// headers are kept cached for much longer than the rest
/// of the data.
#[derive(Debug, Serialize, Deserialize, Eq, PartialEq)]
pub struct Header {
pub name: String,
pub category: String,
pub tags: Vec<String>,
pub fields: BTreeMap<String, Payload>,
pub date_created: DateTime<Local>,
pub date_updated: DateTime<Local>,
}
///
#[derive(Debug, Serialize, Deserialize)]
pub struct Record {
pub header: Header,
pub body: BTreeMap<String, Payload>,
}
impl Header {
/// Create a new header with a name of a category
pub fn new(name: String, category: String) -> Header {
let me = Header {
name: name,
category: category,
tags: Vec::new(),
fields: BTreeMap::new(),
date_created: Local::now(),
date_updated: Local::now(),
};
return me;
}
}
impl PartialEq for Record {
fn eq(&self, other: &Record) -> bool {
self.header == other.header
}
}
impl Record {
/// Create a new record
pub fn new(name: &str, category: &str) -> Record {
return Record {
header: Header::new(String::from(name), String::from(category)),
// fields: BTreeMap::new(),
body: BTreeMap::new(),
};
}
/// Set a simple key-value pair
pub fn set_data(&mut self, key: &str, val: Payload) {
self.body.insert(String::from(key), val);
}
/// Contains a cloned value of single data field
pub fn get_data(&self, key: &str) -> Payload {
return self.body.get(key).unwrap().clone();
}
/// Serialise the entire body into a json tree
///
/// Contains all secret values in a json tree that you can work with manually.
pub fn get_json(&self) -> String {
return serde_json::to_string(&self.body).unwrap();
}
/// Add a new tag to this record head. Checks that tags don't already exists
pub fn add_tag(&mut self, tag: &str) {
self.header.tags.push(String::from(tag));
}
}
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