Blogs

David H Nebinger | 11.01.2022 14:56

Introduction So I wrote https://liferay.dev/blogs/-/blogs/extending-liferay-osgi-modules five years ago targeting Liferay 7.0. A lot has changed since then. Liferay Gradle Workspace plugin has seen...

David H Nebinger | 10.12.2021 20:06

Hey, all! There's a new zero-day vulnerability hitting the web right now, and it is affecting a lot of libraries and applications out there, including Liferay 7.4. Any app using Log4j2 is...

David H Nebinger | 18.09.2021 00:30

Introduction So when you start building your own fragments and using them on your content pages, you will often times run into an issue with propagation... So I like to create fragments for headers...

David H Nebinger | 24.08.2021 15:24

Introduction I posted two blog posts this week, and each of them had a particular drawback - lack of cluster coordination. The first blog post on cluster-enabled upgrade processes introduced using...

David H Nebinger | 24.08.2021 05:11

Just a quick one... I've just updated my Log Persister project for Liferay 7.3. You can find it under the 7.3 branch: https://github.com/dnebing/log-persist/tree/7.3 For those that aren't aware, I...

David H Nebinger | 21.08.2021 17:40

I recently was helping a client with an upgrade process and that had run into a little problem... A few of the model hints were not updated on some of the columns in their Service Builder services...

David H Nebinger | 16.08.2021 04:15

A really quick post to share something important with you React + Clay developers out there... A recent update to Clay had a breaking internal change. If after deploying your React portlet and you...

David H Nebinger | 07.08.2021 02:46

Introduction In a recent blog I explained how to create a React-based portlet within your Liferay Gradle Workspace by using the js-widget Blade template which in turn uses the Yeoman Liferay JS...

David H Nebinger | 21.07.2021 06:13

Introduction A client asked me to build a React portlet for them and I was like, "Oh Yeah!" I mean, it's been a while since I built a React portlet and tooling has really changed a lot since then,...

David H Nebinger | 15.07.2021 14:51

Introduction So I was recently asked to help build a custom Liferay docker image for a client and there were some specific requirements such as: Should not contain hard-coded credentials, those...

Olaf Kock | 09.07.2021 10:52

If you’ve ever looked at a Liferay workflow implementation and its scripts, you might have seen workflowContext being referenced in the scripts that are executed in the individual tasks and states....

David H Nebinger | 17.06.2021 18:27

Introduction As many folks know, I'm known for telling people not to look inside the Liferay database itself. It's not always clear what is what in the DB and Liferay has a lot of code around...

David H Nebinger | 08.06.2021 03:34

So some time ago I wrote the Cluster Details marketplace plugin. Basically you drop this guy into all of your Liferay clusters and you get a nifty little control panel that tells you details about...

David H Nebinger | 18.05.2021 03:06

Introduction Historically developers have always wanted to be able to control site creation. It's not that Liferay admins are untrusted or anything like that. It is really more the case where...

David H Nebinger | 14.05.2021 03:10

Introduction Liferay has, for a long time, supported RBAC, the role-based access control. It is, of course, backed by the database so (inheritance aside for the moment) a user will be assigned a...

David H Nebinger | 21.04.2021 17:07

Introduction One of the great advantages I have being known in the community is really the opportunity to meet, talk and work with talented developers and teams. Recently the team at ACSoftware...

David H Nebinger | 12.04.2021 22:29

Introduction So recently a couple of times I've seen folks ask how to send form data somewhere. Some want to trigger remote web service calls, some want to store the data in a different entity or...

David H Nebinger | 08.04.2021 16:04

Introduction Let me start by saying that I'm a huge fan of Upgrade Processes. I've actually written many blogs about Upgrade Processes or using Upgrade Processes:...

David H Nebinger | 13.02.2021 18:50

Introduction As of yet, there has been no official word that JDK 11 is supported by the Liferay developer tools. Just like the old delays going from JDK 7 to JDK 8, various third party tools and...

David H Nebinger | 04.02.2021 19:31

What is the Mega-Jar? So the Liferay Dev Tools team recently included a new feature that they refer to as a "fat" jar, but I'm giving it the name Mega-Jar! This is a new single dependency that you...

David H Nebinger | 01.02.2021 14:02

A community member posted the following plea on the Liferay Community Slack channel. I feel that it makes a great example, so I'm including it here. Hi I am migrating from Liferay 7.0 to Liferay...

David H Nebinger | 22.12.2020 21:09

About a year ago, Liferay introduced a new program that I have been actively participating in, Liferay Developer Services. But what is this program? Liferay Support When you are a Liferay DXP...

Olaf Kock | 06.11.2020 16:17

Sometimes there are several ways to achieve a goal - and this is a story about one of those times, and one of those different paths to achieve a goal. Recently, in a conversation, I came across two...

David H Nebinger | 23.01.2020 15:57

I did an informal poll on the Liferay community Slack channel recently: I was actually kind of surprised by the majority of votes for the "What is the target platform?" option. So, inspired by the...

David H Nebinger | 12.01.2020 16:43

Classic Liferay Localization Handling Any developer who has been around for awhile will have some knowledge of how Liferay handled localization for the entities... In your service.xml file where...

David H Nebinger | 03.01.2020 03:59

So I've been seeing this a lot recently, so I thought I'd do a quick blog about it... With web contents, we can build structures to provide an organized chunk of data, and then we can define a...

David Gomez | 25.06.2019 07:55

We, as software developers, usually need to reach our users through different channels: from web sites to applications running on smart devices (smartphones, smartwatches, ...) or even through IoT...

David H Nebinger | 18.06.2019 19:15

Quite some time ago I was working with a client that had built web service clients as OSGi modules and leveraged JAXB. During load testing, we found that after many hours of heavy use, the Liferay...

David H Nebinger | 25.05.2019 01:09

So recently I got to hang out with board members and officers of the OSGi Alliance, including Liferay's own Ray Auge. A great bunch of folks these guys are; they were easy to talk to and really...

David H Nebinger | 25.05.2019 00:00

So just a quick post here about your Liferay build chain... It is easy, when you're starting out, to follow the instructions to install the Blade CLI or the Maven artifacts. It is also easy, even...

David H Nebinger | 21.05.2019 22:21

Introduction So I'm not sure if you've had the chance to play around with the new Target Platform stuff that Liferay has, but it is really cool. If you haven't read about it or don't know what it...

David H Nebinger | 21.05.2019 13:36

Liferay has a complete built-in scheduled job service which manages jobs that run on every node as well as single jobs that run in a cluster. Unfortunately there hasn't been a way to gain...

David H Nebinger | 18.05.2019 00:56

The price for TripWire CE and TripWire DXP have been significantly reduced by 90%! TripWire is a control panel that compares each node in a cluster against a baseline. Any time there is a...

David H Nebinger | 14.05.2019 02:53

So whenever I set up a new Liferay cluster, I get to the end and I ask myself, "How do I know it is working?" My standard test is to connect to a node of the cluster and view a page. Then I connect...

David H Nebinger | 09.05.2019 03:49

Introduction So for the longest time I have been an advocate of Liferay's logging API. Folks have asked how to use Log4J or other frameworks and I've always advised against it. Why? Well, for 3...

David H Nebinger | 27.02.2019 04:36

Introduction Out of the box, Liferay DXP has fairly limited audit message output targets. In fact, there are only two that are provided: logging them or persisting to the database. Each of these...

David H Nebinger | 20.02.2019 16:01

Introduction In the earlier days of Liferay, many administrators missed the warning about not using HSQLDB in production. By default, Liferay is configured to use HSQLDB so you can spin up a...

David H Nebinger | 16.01.2019 19:29

Introduction I have helped many companies and organizations install Liferay (5, 6 and now 7/DXP), but often times they will stop there. I mean, once the app servers are up and serving traffic...

David H Nebinger | 27.06.2015 00:48

Let me say that again: Content Creation is Not a Development Activity! Pretty strong statement, but for for those considering Liferay as a platform it's really an important concept, one that lives...