Category: Link

How to Correctly Enable Flycheck in Babel Source Blocks

If you already have Flycheck turned on then you already have it running your babel source block buffers, but, it isn’t working how you expect it. That buffer hasn’t got a file name. Flycheck can’t be smart about helping you out here. Via this post, the solution follows.

(defadvice org-edit-src-code (around set-buffer-file-name activate compile)
  (let ((file-name (buffer-file-name))) ;; (1)
    ad-do-it                            ;; (2)
    (setq buffer-file-name file-name))) ;; (3)

This is one of those things that if you had though about it for a few minutes, you would have turned it on yourself. It reveals how easy it is to return to the mode of “application user” from “application designer”, of Emacs. That is the source of most of my dumb “misses” regarding workflow optimizations in Emacs.

Entity Framework 4.1 – Code First

Entity Framework 4.1 – Code First is a good next-step from this. Guessing that all of the courses referenced in the latter are going to be good next steps, so I will watch all of them. My neighbor at work asked me why I’m using PluralSight instead of just reading all of the EF material.
Normally I read all of the literature on a topic, in depth, at least a couple of times. Every time I’ve done that before, there has been a lot of energy and desire surrounding the pursuit. Learning EF though I feel like I am late to the game. That means that people aren’t really excited about sharing their experiences with EF anymore, so I can’t draw from their energy at all regarding EF, and, I want that. That is why I want to use PluralSight here.
Lerman is sharing 3 things here: facts, values and personal preference. That is exactly what you get interacting with your professional peers. For an experienced programmer, this is the sweet spot for learning new things. Yes my peers are totally up for sharing those things, too, just not 10 hours of it! This is where courses like this are valuable.
The fact that Lerman is vouching for EF means a lot, and sharing her values and beliefs about how to do EF is energizing, and that makes it fun. Lerman’s courses on PluralSight provide a very pleasant learning experience in a very short time-span.
My personal notes on EF follow.
Continue reading “Entity Framework 4.1 – Code First”

Getting Started with Entity Framework 5

Julie Lerman’s PluralSight training is as almost as good as her books. Perhaps it is not a fair comparison? She has a great writing style, and her books are a joy to read. You might expect the same experience with her training videos, and that is probably unfair. You are all about fairness, right? Entity Framework is quite mature at this point. For those of us returning to .NET, this video is quite perfect. It covers just enough. If you’ve built systems before, you will get so, so much out of her series.

Hydra, a new Emacs package to fall in love with

A few weeks ago a really nice post appeared. It explained how to use set-transient-map. Is is nice for all the same reasons that all keymaps are nice, and additionally, their transience. The example of managing text size is perfect. Everyone has that in their Emacs config. When we define a goal like “we want to adjust the text size”, we are virtually “in the zone” of performing that task. We just want to hit a couple of keys to make the font bigger or smaller and this approach makes that really easy. That idea, and post, quickly blossomed into a package and many new cool features.

That “zone thinking” is how most modes and features work, whether the authors and the users are conscious of this or not. Hydra makes you very conscious of this. Watch how quickly examples evolved into re-recreating most of what someone needed of ViM. Cool!

The user-interface feature of displaying available commands (while in that “Hydra”) in the mode-line really piques my interest about using Hydras to provide a very “user friendly” suite of features for new users. Granted, after you use the same features a lot your quit using visual helpers, but for new users, this could be really interesting.

This package has all of the earmarks of a game-changer. That is my gut feeling; it will be a major facilitator for expressing all sorts of creative approaches for creative expression in Emacs (or ALEC in my case).

For the last few months I’ve had a thought visit me more than a few times: “What would it take to implement ViM, in Emacs, without taking one peek at evil-mode”. That question was just in the collective conscious I believe. Very, very delightful to see it get answered in this delightful new package, Hydra.

Thank you Oleh!

Easily set column width in org tables

Org tables are great. Most of the time I rely on the column width auto-resizing feature. Perhaps you want to do force a smaller width though for example. Just specify the width, in its own empty row inside of angled parentheses. Default justification is right. Prefix the number with a l or c to do left or center.
Here is the page. Thanks Tory!

     |---+------------------------------|               |---+--------|
     |   |                              |               |   | <6>    |
     | 1 | one                          |               | 1 | one    |
     | 2 | two                          |     ----\     | 2 | two    |
     | 3 | This is a long chunk of text |     ----/     | 3 | This=> |
     | 4 | four                         |               | 4 | four   |
     |---+------------------------------|               |---+--------|

org-table-edit-field (C-c `) lets you easily edit the entire field and the org super key (C-c C-c) saves it.