GitLocker: The Coding Marketplace

Description:

local database null safety

A local database using dart:io file system components
Getting started #
In the pubspec.yaml of your flutter project, add the following dependency:
dependencies:
...
local_database_null_safety: ^1.4.1
copied to clipboard
In your library add the following import:
import "package:local_database_null_safety/local_database_null_safety.dart";
copied to clipboard
For help getting started with Flutter, view the online documentation.
Using #
This plugin comes with three main operations, get, put, and remove.
To use the database, simply instantiate it with the constructor
Database database = new Database(/*File System Path to database*/);
Next, call the built in methods for database.
To put into the database, use the []= operator (note that only JSON encodable types can be used). The parameter of this operator is the path in the database to put to delimited by forward slashes ("/").
database["dir1"] = {
"b":[1,2,3]
};
database["dir1/b/0"] = 100;
copied to clipboard
To read from the database, use the [] operator. The parameter of this operator is the path in the database to read from delimited by forward slashes ("/").
print(await database["dir1"]);
print(await database["dir1/b/0"]);
copied to clipboard
To remove from the database, use the .remove(String path) method. The parameter of this operator is the path in the database to put to delimited by forward slashes ("/").
database.remove("dir1");
copied to clipboard
The following is an example use of the package:
Database database = new Database(Directory.current.path+"/data");
Map<String,dynamic> userData;
if((await database["userData"])==null){
String userId = "";
Random r = new Random();
for(int i = 0; i<8;i++){
userId+=r.nextInt(10).toString();
}
database["userData"] = {
"created": (new DateTime.now()).millisecondsSinceEpoch,
"id":userId,
"numLikes":0
};
}
userData = await database["userData"];
copied to clipboard