Yearly Archives: 2018

Advantages of using Django? (#63)

By |2018-10-20T23:56:47+11:00October 17th, 2018|Django, Newsletter|

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, [...]

Data Modelling Podcast – EPANET Input Files in Django

By |2018-10-10T00:56:36+11:00October 10th, 2018|Podcast|

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 [...]

Data Modelling Podcast – Django Apps and Databases

By |2018-10-10T00:58:05+11:00October 9th, 2018|Podcast|

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 [...]

EPANET Modelling in WaterSums – Part 3 (#62)

By |2018-10-11T17:44:02+11:00August 24th, 2018|Django, Newsletter|

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 [...]

EPANET Modelling in WaterSums – Part 1 (#60)

By |2018-10-11T17:25:58+11:00May 25th, 2018|Django, Newsletter|

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. [...]

Data Modelling Podcast – The Benefits of Good Data Modelling

By |2018-04-09T17:20:42+10:00April 9th, 2018|Podcast|

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 [...]

Data Modelling Podcast – Connections Part 3

By |2018-04-09T17:21:36+10:00April 9th, 2018|Podcast|

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).

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