godot-sqlite

This GDNative script aims to serve as a custom wrapper that makes SQLite3 available in Godot 3.1+. Additionally, it does not require any additional compilation or mucking about with build scripts.

Supported operating systems:

Mac OS X
Linux
Windows

How to install?

Re-building Godot from scratch is NOT required, the proper way of installing this plugin is to either install it through the Asset Library or to just manually download the build files yourself.

Godot Asset Library

Godot-SQLite is available through the official Godot Asset Library, and can be installed in the following way:

Click on the 'AssetLib' button at the top of the editor.
Search for 'godot-sqlite' and click on the resulting element.
In the dialog pop-up, click 'Download'.
Once the download is complete, click on the install button...
Once more, click on the 'Install' button.
Activate the plugin in the 'Project Settings/Plugins'-menu.
All done!

Manually

It's also possible to manually download the build files found in the releases tab, extract them on your system and run the supplied demo-project. Make sure that Godot is correctly loading the gdsqlite.gdns-resource and that it is available in the res://-environment.

An example project, named "demo", can also be downloaded from the releases tab.

Variables

path (String ,default value='default')

Path to the database, should be set before opening the database with .open_db(). If no database with this name exists, a new one at the supplied path will be created. Both res:// and user:// keywords can be used to define the path.

error_message (String, default='')

Contains the zErrMsg returned by the SQLite query in human-readable form. An empty string corresponds with the case in which the query executed succesfully.

verbose_mode (Boolean, default=false)

Setting verbose_mode on True results in an information dump in the Godot console that is handy for debugging your (possibly faulty) SQLite queries.

foreign_keys (Boolean, default=false)

Enables or disables the availability of foreign keys in the SQLite database.

query_result (Array, default=[])

Contains the results from the latest query and is cleared after every new query.

Functions

Boolean success = open_db()
Boolean success = import_from_json( String import_path )

Drops all database tables and imports the database structure and content present inside of import_path.json.

Boolean success = export_to_json( String export_path )

Exports the database structure and content to export_path.json as a backup or for ease of editing.

Boolean success = close_db()
Boolean success = query( String query_string )
Boolean success = create_table( String table_name, Dictionary table_dictionary )
Boolean success = drop_table( String table_name )
Boolean success = insert_row( String table_name, Dictionary row_dictionary )
Boolean success = insert_rows( String table_name, Array row_array )
Array selected_rows = select_rows( String table_name, String query_conditions, Array selected_columns )
Boolean success = update_rows( String table_name, String query_conditions, Dictionary updated_row_dictionary )
Boolean success = delete_rows( String table_name, String query_conditions )

What games/tools use this plugin?

This is an incomplete list of (un)released games/tools that are using this plugin:

Are you using godot-sqlite? Would you like to be on this list? Please open an issue with a link to your game or tool and you'll be added asap.

How to export?

All json- and db-files should be part of the exact same folder (demo/data in the case of the demo-project). During export this folder should be copied in its entirety to the demo/build-folder, in which the executable will be created by Godot's export command line utilities. Luckily, a Godot script called 'export_data.gd' can also found in the demo-project and allows to automatically copy the demo/data-folder's contents to the demo/build-folder.

The commands to succesfully export a working executable for the demo-project are:

mkdir build
godot -s export_data.gd
godot -e --export-debug "Windows Desktop" build/godot-sqlite.exe

("Windows Desktop" should be replaced by whatever the name of your relevant build template is.)

The design philosophy behind this is the following:

Even after exporting the entire game, the data-files can still be easily edited without requiring additional exports for every miniscule edit.
Importing a database from a json-file allows the Godot executable to use the full capabilities of the SQLite framework (SELECT, UPDATE, ...), while still allowing writers and other content creators to edit these json-files using their favorite text-based IDE.

How to contribute?

First clone the project and install SCons. Secondly, the C++ bindings have to be build from scratch using the files present in the godot-cpp submodule and following command:

scons p=<platform> bits=64 generate_bindings=yes

Afterwards, the SContruct file found in the repository should be sufficient to build this project's C++ source code for Linux, Mac OS X or Windows, with the help of following command:

scons p=<platform>

Tutorials for making and extending GDNative scripts are available here in the Official Godot Documentation. Build files are currently only available for 64-bits systems.

Genzo4 / godot-sqlite