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How can I rename a database column in a Ruby on Rails migration?
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$ > rails g migration ChangeColumnName
which will create a migration file similar to:
class ChangeColumnName < ActiveRecord::Migration
def change
rename_column :table_name, :old_column, :new_column
end
end
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Do I need quotes for strings in YAML?
...ionalisation of a Rails project. I am a little confused though, as in some files I see strings in double-quotes and in some without. A few points to consider:
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Assign variable in if condition statement, good practice or not? [closed]
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There is one case when you do it, with while-loops.
When reading files, you usualy do like this:
void readFile(String pathToFile) {
// Create a FileInputStream object
FileInputStream fileIn = null;
try {
// Create the FileInputStream
fileIn = new FileInputStrea...
Hudson or Teamcity for continuous integration? [closed]
...IntelliJ, Eclipse and VisualStudio). It can show you, for example, when a file you're editing in the IDE becomes out of date, who changed it and what they changed. You can commit from the IDE to the CI server, run the comile and tests on the build grid, and then the CI server will commit if the bu...
Remove all multiple spaces in Javascript and replace with single space [duplicate]
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i'm reading data in from a txt file (via AJAX), and @InfinitiesLoop regex worked fine but Josiah's didn't
– Jeff
Apr 23 '12 at 13:48
2
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PHP + curl, HTTP POST sample code?
... simply need to modify your php.ini and tell PHP where your CA Certificate file is to let it verify certificates correctly:
; modify the absolute path to the cacert.pem file
curl.cainfo=c:\php\cacert.pem
The latest cacert.pem can be downloaded from the Internet or extracted from your favorite bro...
How can I get the list of a columns in a table for a SQLite database?
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Great! Now how is this done from outside the command line? How is this done from within my own C program?
– Aaron Bratcher
Sep 27 '13 at 13:56
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“Variable” variables in Javascript?
... single solution for this (well, there is eval, but lets not seriously consider that). It is possible to access some global variables dynamically via window, but that doesn't work for variables local to a function. Global variables that do not become a property of window are variables defined with l...
How to embed an autoplaying YouTube video in an iframe?
I am trying to embed the new iframe version of a YouTube video and get it to auto play.
14 Answers
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Stop/Close webcam which is opened by navigator.getUserMedia
...eveloper will have to access the tracks that make up the stream (audio or video) and stop each of them individually.
More info here: https://developers.google.com/web/updates/2015/07/mediastream-deprecations?hl=en#stop-ended-and-active
Example (from the link above):
stream.getTracks().forEach...