impleOne comprises of the back-end server and front-end server.
Back-end server responsibility is interaction with the database, it handles all the queries received from the frontend server. By results, it forms a JSON object and returns it to a front-end server via API.
Back-end and front-end interaction scheme
The front-end server works as a SPA (Single Page Application). It means that the page is loaded only once, and then, when changed, or when any button clicked, the query to the back-end server is sent to process the changes. The back-end server processes this query and returns the answer in JSON format. After that, the changes are applied and displayed in the interface.
SPA functionality scheme
Tables and Columns
As mentioned before, SimpleOne stores its data and business logic in tables. In fact, SimpleOne comprises of a lot of tables, which, in turn, are made up of columns.
When new table is created, the following happens:
- The table structure forms;
- The table description and properties (business-rules, access rules, and so on) are recorded into the sys_db_table table;
- Similarly, if a column added, it's description and properties are recorded into the sys_db_column and sys_db_column_type tables.
Table Creation Scheme
Interface Behaviour
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