So what are the advantages in using Django? It does make the modelling easy, but it also adds some extra constraints or complexities. There are many advocates of Django and many places where people will try to answer the question “Why use Django?” In the table below, I have included links to eight such articles, [...]
Here is the tenth episode of the DjangoModelling.com Data Modelling Podcast. This episode describes the models we need in Django to match the tables we created by hand when we weren't using Django. In the end, the main difference is the ID column that Django gives us. A new podcast in the [...]
Here is the ninth episode of the DjangoModelling.com Data Modelling Podcast. This episode looks at an example of how we can add objects to Django through the shell, a little easy customisation, and how this works with multiple databases at once. A new podcast in the series will be released on the [...]
Some time ago when we looked at modelling the simple example of Hezekiah’s tunnel (EPANET Network Components – Database tables and rows, Part 1 (#18)), we discussed the options for creating our data tables including some ways to use a class hierarchy. EPANET has nodes (junctions, reservoirs and tanks) and links (pipes, pumps and valves) which [...]
Different applications have different requirements. This seems to be an obvious statement, but sometimes it is not obvious just how different the requirements can be. […]
Here is the eighth episode of the DjangoModelling.com Data Modelling Podcast. This episode discusses how Django works with multiple databases at once and some differences between database types. A new podcast in the series will be released on the first Monday of each month (God willing).
Many software programs that model water supply networks use the public domain EPANET modelling engine for analysis. EPANET defines many different types of object which can be contained in such networks and settings for simulation of events in the networks. EPANET also defines an input file format which can describe these objects and settings. [...]
Here is the seventh episode of the DjangoModelling.com Data Modelling Podcast. This session introduces Django and a little of how to set up your computer to use Django. A new podcast in the series will be released on the first Monday of each month (God willing).
We now make available the sixth episode of the DjangoModelling.com Data Modelling Podcast. This session talks further about the benefits of good data modelling, and the contrast with the unpleasantness that results from bad data modelling. A new podcast in the series will be released on the first Monday of each month [...]
We now make available the fifth episode of the DjangoModelling.com Data Modelling Podcast. This session talks further about connections in data modelling, looking at many-to-many connections and a summary of connections. A new podcast in the series will be released on the first Monday of each month (God willing).