dddb 0.0.6

Dddb lightweight and simple key-value store


To use this package, put the following dependency into your project's dependencies section:

dub.json
dub.sdl

dddb

Build Status

dddb is lightweight and simple key-value dlang database (store) build on top of std.json

Usage



import std.stdio;
import dddb;

void main()
{
	
	auto db = new ddb("yes.db");
    

    // set multiple values to social_networks
    db.set("social_networks", "facebook");
    db.set("social_networks", "twitter");
    db.set("social_networks", "linkedin");

    writeln(db.get("social_networks"));
    // ["facebook", "twitter", "linkedin"]

    writeln(db.count("social_networks"));
    // will return 3, because we have add ["facebook", "twitter", "linkedin"]

    assert(db.count("social_networks") == 3);
    // no error because there are 3 ["facebook", "twitter", "linkedin"]

    db.update("social_networks", "facebook", "instagram");
    // update facebook to instagram 
    writeln(db.get("social_networks"));
    // ["instagram", "twitter", "linkedin"]

    assert(db.countkeys() == 1);
    writeln(db.getkeys()); 
    // db.getkeys() return a list of all keys,
    // ["social_networks"]

    assert(db.getsize() == 54);
    writeln(db.getsize());
    // db.getsize() return the database size in bytes
    // 58
    

    assert(db.havevalue("social_networks", "facebook") == false);
    writeln(db.havevalue("social_networks", "facebook")); // expected false
    // because facebook not exists in social_networks, we update it with instagram in line 240

    assert(db.havevalue("social_networks", "instagram") == true);
    writeln(db.havevalue("social_networks", "instagram")); // expected true 
    // true 


    // db.drop() delete database 
    // NOTE: all db data will be lost
    db.drop();
    assert(exists(db.db) == false);
}
Authors:
  • cvsae
Dependencies:
none
Versions:
0.0.6 2018-Jul-01
0.0.5 2018-Jul-01
0.0.4 2018-Mar-25
0.0.3 2018-Mar-25
0.0.2 2018-Mar-23
Show all 8 versions
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Score:
0.8
Short URL:
dddb.dub.pm