Simple console application allowing to generate mock nested set data strcutures for SQL-based databases development and testing purposes. Lorem Nested Set generates a mock nested set data strcuture according to optional user preferences and exports it as a SQL script containing appropriate data insertion statements. The latter is fully configurable and can be used to build a mock nested set data structure within an SQL-based database.
The application needs to be built before use. To obtain the appropriate executable you will need to use a C compiler such as GCC compatible with both Linux and Windows operating systems.
If you are working under Linux, you may have already installed GCC compiler. If not, you can do so by executing the following command in terminal:
sudo apt-get install build-essentialWindows does not have a native GCC support but you can use a Unix-like environment such as Cygwin or MinGW with gcc and make packages installed.
Once the GCC compiler installed, you can build an executable using make command which will use the makefile included to automatically perform all compilation commands. The resulting executable will be saved to bin folder located in the application's root directory.
To run Lorem Nested Set from the command line use the following sytax:
lnt -o "<output SQL script file>" [-d, -m, -M, -t, -l, -r, -v, -L, -h]
The application defaults are set to following values:
- structure depth: 3 levels
- minimum nodes count per level: 1
- maximum nodes count per level: 5
- target SQL table name: 'mock_table'
- left boundary column name: 'left'
- right boundary column name: 'right'
- by default level column is not included in output script
The above parameters can be modified by using available options:
| Option | Description |
|---|---|
| -o | specifies output script file (mandatory) |
| -d | depth of data structure (number of levels) |
| -m | minimum nodes count per level (default value: 1) |
| -M | maximum nodes count per level (default value: 5) |
| -t | custom name (without quotes or `) for target SQL table (default value: 'mock_table') |
| -l | custom name (without quotes or `) for left boundary column (default value: 'left') |
| -r | custom name (without quotes or `) for right boundary column (default value: 'right') |
| -v | export also level column with its default name (not associable with -L option) |
| -L | custom name (without quotes or `) for level column (not associable with -v option) |
| -h | displays this text |
Example of application execution
Extract of application output
export.sql
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (1, 104, 0);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (2, 35, 1);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (36, 69, 1);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (70, 103, 1);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (3, 10, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (11, 18, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (19, 26, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (27, 34, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (37, 44, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (45, 52, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (53, 60, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (61, 68, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (71, 78, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (79, 86, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (87, 94, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (95, 102, 2);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (4, 5, 3);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (6, 7, 3);
INSERT INTO mock_table (`left`, `right`, `level`) VALUES (8, 9, 3);
...- Marek Felsoci - Student - University of Strasbourg
Lorem Nested Set is licensed under the terms of the MIT License.
- Nested set database model example image by Nestedsetmodel.jpg: Sherahmderivative work: 0x24a537r9 (talk) - Nestedsetmodel.jpg, Public Domain