Based on work done by darkrishabh Local Databse Models for React Native Apps
npm install react-native-database-modelBased on work done by darkrishabh Local Databse Models for React Native Apps
bash
$ npm i react-native-react-native-database-model --save----------
Usage
======================
Added better query search results and now it is possible to search any key:value pair independent of tree structure.
The ideal way to use this library is to have a db.js in your applications somewhere. Which will be required.
DB.js
`
var RNDBModel = require('react-native-db-models')var DB = {
"app": new RNDBModel.create_db('app'),
"users": new RNDBModel.create_db('users'),
}
module.exports = DB
and require it in your code -
var React = require('react-native');
var DB = require('./db.js');
// DB Emitter Initializedvar DBEvents = require('react-native-db-models').DBEvents
var {
AppRegistry,
StyleSheet,
Text,
View,
Image
} = React;
// Only "all" event emitter is available
DBEvents.on("all", function(){
console.log("Database changed");
})
var App = React.createClass({
get_users: function(){
DB.users.get_all(function(result){
console.log(result);
})
},
render: function(){
return (
Hello
);
}
});
All methods are async and therefore require a callback method.
======================
You can check all the returned data from the callback. The returned data is more than expected so modify it as per your needs.----------
get
> get(query_data, callback)
> query_data: The data to be matched. (eg. {name: "John Doe"})
Example
DB.users.get({first_name: "Rishabh"}, function(results){
console.log(results);
})
----------
get_id> get_id(id, callback)
> id: ID of the object to be fetched.
Example
DB.users.get_id(10, function(results){
console.log(results);
})
----------
get_all
> get_all(callback)
> Gets the complete table for you.
Example
DB.users.get_all(function(result){
console.log(result);
})
----------
remove
> remove(query_data, callback)
> query_data: The data to be matched. (eg. {name: "John Doe"})
Example
DB.users.remove({first_name: "Rishabh"}, function(removed_data){
console.log(removed_data);
})
----------
remove_id
> remove_id(id, callback)
> id: ID of the object to be deleted.
Example
DB.users.remove({first_name: "Rishabh"}, function(removed_data){
console.log(removed_data);
})
----------
add> add(data, callback)
> data: The data to be added. (eg. {name: "John Doe", age: 56})
Example
DB.users.add({first_name: "Rishabh", age: 25}, function(added_data){
console.log(added_data);
})
----------
update
> update(query_data, new_data, callback)
> query_data: The data to be matched. (eg. {name: "John Doe"})
> new_data: The data to be updated. (eg. {age: 12})
Example
DB.users.update({first_name: "Rishabh"}, {age: 25}, function(updated_table){
console.log(updated_table);
})
----------
update_id
> update_id(id, new_data, callback)
> id: The id of the data to be matched.
> new_data: The data to be updated. (eg. {name: "Ken"})
Example
DB.users.update_id(3, {name: "Ken", age: 12}, function(updated_table){
console.log(updated_table);
})
----------
erase_db> erase_db(callback)
> Erases the complete table.
Example
DB.users.erase_db(function(removed_data){
console.log(removed_data);
})
----------