Coldbox and VueJS untangled

Month: June 2021

Dynamic datasources part 2: quick

Using dynamic datasources in a cfml ORM system can be hard. I am working on some project full of cform, and as mentioned in my post on dynamic datasources in qb I have a project with a lot of legacy code, full of cfquery, queryExecute, some qb queries and… tons of cform entities. And for all this code I should be able to change my datasource on the fly, based on URL or the authenticated user. I already had all solutions in place for qb and queryExecute, but cform is a showstopper. Back in CF9 when cform was introduced you could only work with ONE datasource, the default datasource. Since default datasources where introduced in CF9 I suspect this was only done to accommodate for the lack of datasource awareness of the cf9.0 orm entities. In CF9.01 this became slightly better when we could specify some datasource property, but it has always been a pain to get this right. And unfortunately we often worked with a multidatasource setup. When we switched from Lucee 4 to 5 it took several years before a very important multi datasource bug was fixed. And now we even needed dynamic datasources, which is a real NO! in cform. So how about quick?

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Dynamic datasources part 1: QB

Recently I was working on a project where we wanted to reuse our code for multiple customers. The only difference: they all have their own database where their data was stored. We can do this in two different ways

  • deploy a new application for every customer. For a smal amount of customers that might be acceptable.
  • Based on the url we can detect which datasource we need for a customer. If we would be using the same url for all customers, we can have some central database which keeps all kind of information including datasource name for each individual customer. We could store the datasource name in a private request collection variable called mainDatasource (or put it in some user specific cache or session variable), so each customer has his own datasource.

Since our project was existing code, I have a few hundred references to <cfquery> and queryExecute and many queryBuilder (qb) calls for newer code.

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A new coldbox app with commandbox: A walk in the park?

I want to share some recent experience with you, when I created a new coldbox app. Disclaimer: Actually I would like to improve the first impression when generating a new coldbox app, but I may sound a bit biased. As some of you might know I am not always happy with commandbox, especially with the way it handles lucee in production environments.
We had some issues recently with pinning lucee versions so we didn’t get unwanted updates, and the way it handles updates combined with some licensing issues. Our cases were probably very specific, but one of my major points with commandbox/lucee setups is that our sysadmins need additional training, because the setup is very non-standard. For a sysadmin who has to master multiple environments the locations of configuration files and log files is very non-standard, and release notes are not easy to find in the documentation. If you are well known in the commandbox and lucee environments it is not too hard to master, but for these sysadmins it is just one of the many tricks they have to master. They love uniformity, especially at 2 am with some failing websites after an update.

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Module dependencies in interceptors

Interceptors in coldbox are very powerful. They are components which listen to events which are announced by the core framework or modules or custom events created by your application. But this post is not about all details of creating interceptors, you can read all about it in the coldbox documentation. I am using them all the time since they are so powerful, but sometimes they don’t behave as expected, especially when your interceptor depends on other modules.

Ahh yes, the good ol chicken and the egg problem

Luis Majano

So, what’s the problem with this chicken and her egg? Actually there are two related problems. One of them is easy to solve, the other takes some more effort.

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