Posts

  • Fixing the "Token undefined not a primary expression at column null of the expression" error

    The other day I was working on an Angular application and I received the following error message:

    Token ‘undefined’ not a primary expression at column null of the expression

    This was not a very helpful error message but I tracked it down to the following:

    <label ng-click=toggleIsRequiredChecked($event, activeModules, module)">
        <input type="checkbox" ng-checked="getIsRequiredChecked(activeModules, moduleName)">
        
    </label>

    Do you see the error? The double quote is missing from the ng-click attribute which caused the error. I added it and the code worked:

    <label ng-click="toggleIsRequiredChecked($event, activeModules, module)">
        <input type="checkbox" ng-checked="getIsRequiredChecked(activeModules, moduleName)">
        
    </label>
  • Let's Invest in Ourselves For 2017 Update

    In my Let’s Invest in Ourselves For 2017 post I laid out the books I was planning on reading in 2017 but plans changed so we’re going to read PHP Objects, Patterns, and Practice instead.

  • Lessons Learned From "Working Effectively With Legacy Code"

    As part of investing in myself I decided to read four different programming/management books in 2017 to improve myself. For the first quarter, I read Working Effectively with Legacy Code by Michael Feathers (even though I’m not getting this writeup out until the second quarter I swear I read it in Q1). This article is my way of keeping myself accountable for the actual reading. :-)

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  • Fixing the "Error in configuration. Last filter is multi filter. Needs to be non-multi one. Stopping" error

    Last week we ran into an interesting problem with our MySQL master/slave replication. During the week (when we’re working) the propagation delay from master to slave is less than a second but for some reason on Saturdays the delay jumps up for several minutes (still trying to figure this one out). This caused a problem where multiple records would try to be inserted for the same data (read fails to find the new row which causes it to assume there is a need for a new record).

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  • Looping PHPUnit for Fun and Profit

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    In Test Driven Development (TDD): By Example Kent Beck describes the process he uses to create new classes. As part of that process, he creates a list of all the things the class should do so he has a todo list of what’s been done and what hasn’t. This is an example from his book:

    • $5 + 10 CHF = $10 if rate is 2:1
    • $5 * 2 = $10
    • Make “amount” private
    • Dollar side-effects?
    • Money rounding?

    As he completes an item he crosses it off so he can see what he has left to do.

    • $5 + 10 CHF = $10 if rate is 2:1
    • $5 * 2 = $10
    • Make “amount” private
    • Dollar side-effects?
    • Money rounding?

    I’ve been fascinated with this concept after I read about it because of how it allows you to keep track of new things that come up while you’re working without pulling yourself out of your current work. I tried paper and pencil at first but that caused me to create a bunch of extra paper “waste”. To combat this, I looked for ways to create my list digitally within the PHPUnit.

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  • Migrating Sessions in PHP

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    We just finished migrating our PHP Sessions from the default PHP session save location (file) to a distributed system (Redis) and I wanted to share our experience.

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  • Link Post and Podcast Roundup: April 2017 Edition

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    April’s links.

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  • Using PHP Resque with Redis Sentinel

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    We’re using Redis Sentinel to provide high availability for our Redis deployment. One of the struggles we had as we made this transition was finding a way to get php-resque to connect to Redis Sentinel as well.

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  • Calculate Time Left Based on Percentage in PHP

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    The other day I wrote a script that batched processed new records that took several seconds to process (each one could created hundreds of rows in a database and had to be compared against all other previous records). I really wanted to know how many records were left and how much more time it was going to take (so I can plan accordingly). Below is a modified version of the script so you can adapt it for your own uses.

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  • Link Post and Podcast Roundup: March 2017 Edition

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    March’s links.

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