The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

  • My badges

    Mastodon

  • Twitter Updates

  • My Flickr Stream

    20140508-Delphi-2007--Project-Options--Cannot-Edit-Application-Title-HelpFile-Icon-Theming20140430-Fiddler-Filter-Actions-Button-Run-Filterset-now20140424-VMware-Fusion-6.0.3.-no-reclaimable
    More Photos

  • Pages

  • All categories

  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 1,839 other subscribers

Author Archive

« Previous Entries
Next Entries »

About Blocks – bl.ocks.org

Posted by jpluimers on 2018/12/20

[WayBack] About Blocks – bl.ocks.org is so cool:

Bl.ocks (pronounced “Blocks”) is a simple viewer for sharing code examples hosted on GitHub Gist.

…

The main source for your example is in index.html. This file can contain relative links to other files in your Gist, such as images, scripts or stylesheets. And of course you can use absolute links, such as CDN-hosted D3, jQuery or Leaflet. To explain your example, add a README.md written in Markdown. (You can omit the index.html if you just want to write, too.)

[WayBack] Code-only-Blocks are cool too:

When your Gist is missing an index.html file, will hide the example iframe but continue to display everything else.

Just compare these:

–jeroen

Posted in Development, DVCS - Distributed Version Control, gist, GitHub, jQuery, Scripting, Software Development, Source Code Management, Web Development | Leave a Comment »

Can’t format message nn:mmm — message text not found

Posted by jpluimers on 2018/12/20

Lovely: people that perform incomplete Firebird deployments…

This means the firebird.msg file on the client is either not found or is a different version than the server.

Source: [WayBack] Can’t format message nn:mmm — message text not found

–jeroen

Read the rest of this entry »

Posted in Database Development, Development, Firebird | Leave a Comment »

PSD2 and privacy

Posted by jpluimers on 2018/12/20

The problem is that with PSD2 it takes just one party to allow access to two sides of the hatchway: their side of their transactions and your side if the transactions you are involved in. So if you want privacy, you cannot protect against this.

–jeroen

Posted in GDPR/DS-GVO/AVG, Power User, Privacy | Leave a Comment »

Spring4D How to correctly assign NULL to a Nullable type?

Posted by jpluimers on 2018/12/19

Since I tend to forget this: [WayBack] Spring4D How to correctly assign NULL to a Nullable type? this is correct? fDateTime = Null; or this? fDateTime := nil; – Jacek Laskowski – Google+

The preferred way is fDateTime := nil.

This is possible because of [WayBack] Delphi sorcery: How to create an operator overload that only accepts nil using a reference type (in this case interface) so no non-nil pointers can be passed:

type
  Nullable<T> = record
  strict private type
    Null = interface end;
  public
    class operator Implicit(const value: Null): Nullable<T>;
  end;

–jeroen

Posted in Delphi, Development, Software Development, Spring4D | 2 Comments »

“I tyically ask recruiters to point out which of these are pokemon” – via “my linkedin profile : ProgrammerHumor”

Posted by jpluimers on 2018/12/19

[Archive.is] Vincent D. Warmerdam (also known as koaning; D is for Damian) put Start-up or Pokémon? Big-data or Pokémon? into practice a while back:

my linkedin profile: “I tyically ask recruiters to point out which of these are pokemon”

Source: [WayBack] “my linkedin profile : ProgrammerHumor”

He’s a very interesting person to follow:

I also discovered https://bl.ocks.org because of Vincent. More on that later.

–jeroen

Read the rest of this entry »

Posted in Cloud Development, Development, Software Development | Leave a Comment »

Python threading: logging exceptions during the `run`

Posted by jpluimers on 2018/12/19

In A few observations on Python while I made my first steps into it, I mentioned the standard threading idiom in Python by wrapping the thread in a function. This has the drawback of having to catch and handle any exceptions in that function.

The higher level [WayBack] threading module has a [WayBack] Thread class with a [WayBack] run() method does not handle exceptions either.

For investigation of threading issues, it’s very convenient to know about the exceptions in a thread and their context.

So I’ve made a small base class that automagically logs any exceptions during a run:

import threading

from log import Log

class ExceptionLoggingThread(threading.Thread):

    def __init__(self):
        threading.Thread.__init__(self)
        self.logger = Log().getLogger()
        self.logger.debug("ExceptionLoggingThread().")

    def run_logic(self):
        self.logger.debug("Thread started.")

    def run(self):
        try:
            self.run_logic()
        except:
            self.logger.exception('Exception in `run`')
            raise

–jeroen

Posted in Development, Python, Scripting, Software Development | Leave a Comment »

Spring4D Conference

Posted by jpluimers on 2018/12/19

Do not forget the early bird sales ends soon for the Spring4D European Conference 2018 – Bergamo Italy, right before Easter 2019.

Both the original author and the current maintainer will be there, and it will be a great place to socialize with fellow Spring4D users.

Buy tickets: [WayBack] Spring4D Conference

Via:

–jeroen

Posted in Delphi, Development, Software Development, Spring4D | Leave a Comment »

git – I ran into a merge conflict. How can I abort the merge? – Stack Overflow

Posted by jpluimers on 2018/12/18

I need this one day: [WayBack] git – I ran into a merge conflict. How can I abort the merge? – Stack Overflow

–jeroen

Posted in Development, DVCS - Distributed Version Control, git, Software Development, Source Code Management | Leave a Comment »

Links to help me monitor my Zeverlution PV converter locally

Posted by jpluimers on 2018/12/18

Since it’s my data, I’d rather be in control myself, so here are some links that will help me going around the Zevercloud solution I posted about yesterday.

Some other interesting links of software supporting Zeversolar devices:

Note that PVoutput.org does have native ZeverCloud updating using the ZeverSolar API key:

But these might help me:

–jeroen

Read the rest of this entry »

Posted in Development, Hardware Interfacing, LifeHacker, Power User, Software Development, Solar Power, Zeverlution, Zeversolar | Leave a Comment »

Reminder to self: make a list of URL suffixes to show branch diagrams of repositories

Posted by jpluimers on 2018/12/18

One of the BitBucket features I like a lot is that in the commit history, you see the branches involved in a nice diagram on the left side of the commits: https://bitbucket.org/pypy/pypy/commits

BitBucket used to be popular to host public repositories, but from a public perspective, they are on the decline for that (they even removed the [once popular] bitbucket.org/explore page and [WayBack] will not re-introduce it).

Right now, only major git based hosters still have explore pages:

So it makes sense to see where they provide diagrams of branches, so here are some examples to go from a project to the graph:

–jeroen

Posted in BitBucket, Development, DVCS - Distributed Version Control, git, GitHub, GitLab, Mercurial/Hg, Software Development, Source Code Management | Leave a Comment »

« Previous Entries
Next Entries »