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Overriding id on create in ActiveRecord
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id is just attr_protected, which is why you can't use mass-assignment to set it. However, when setting it manually, it just works:
o = SomeObject.new
o.id = 8888
o.save!
o.reload.id # => 8888
I'm not sure what the original motivation was, but I do this when converting ActiveHash models to A...
Is there a software-engineering methodology for functional programming? [closed]
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IMO visitor is not fold - fold is a subset of visitor. Multiple dispatch is not (directly) captured by fold.
– Michael Ekstrand
Feb 6 '11 at 13:34
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How to select a CRAN mirror in R
...as described using Anaconda's distribution of R, v3.4.3, with the snapshot set to 2017-09-01.
– Steven C. Howell
Jul 16 '18 at 20:56
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Do I need dependency injection in NodeJS, or how to deal with …?
...hatever your app use case is
//come TEST time of SuperCoolWebApp, you can set the require or return whatever you want, or, like I said, use an actual connection to a TEST database.
Do not follow this example verbatim. It's a lame example at trying to communicate that you leverage the module patt...
A regular expression to exclude a word/string
... answered Jan 16 '10 at 21:21
SethSeth
38.3k99 gold badges7979 silver badges117117 bronze badges
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Image Greyscale with CSS & re-color on mouse-over?
...o be linked to other website tho, how could this be done if the images are set as backgrounds?
– Meta
Sep 1 '11 at 17:39
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What is difference between instantiating an object using new vs. without
...w() or Time::operator new(), and subsequently calls Time::Time() with this set to an address within that memory block (and also returned as the result of new), which is then stored in t. As you know, this is generally done on the heap (by default) and requires that you delete it later in the program...
HTML5 Email Validation
...sses validations
$("input[type=email]").change( function(){
// Set the regular expression to validate the email
validation = new RegExp(validations['email'][0]);
// validate the email value against the regular expression
if (!validation.test(this.value)){
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How SID is different from Service name in Oracle tnsnames.ora
...o a completely different database without the client needing to change any settings.
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Xcode - ld: library not found for -lPods
... help.
Basically, I needed to ensure that Build Active Architectures Only settings for both my project and the Pods project were equal.
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