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Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
I have been googling for about 90 minutes now and still don't have an answer to this. Where do I set default_url_options ? I've already set it for config.action_mailer.default_url_options to solve this same bug elsewhere, but now I'm getting this error when trying to use a URL helper inside an ...
What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
...introduction to quoting in Bash.
Arrays ($var vs. $var[@] vs. ${var[@]})
Now for your array. According to the bash manual:
Referencing an array variable without a subscript is equivalent to referencing the array with a subscript of 0.
In other words, if you don't supply an index with [], you...
Will Dart support the use of existing JavaScript libraries?
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The answer is now Yes! Dart now ships a JS-interop library to use existing JavaScript code with your Dart app. Learn more here: https://www.dartlang.org/articles/js-dart-interop/
...
Insert all values of a table into another table in SQL
...to add a "where" condition, then Right Click on Grid -> Pane -> SQL
Now you can edit Query and add WHERE condition, then Right Click again -> Execute SQL, your required rows will be available to select on bottom)
Step 3
Follow Step 1 for the target table.
Step 4
Now go to ...
No internet on Android emulator - why and how to fix? [closed]
...ator command line solved the issue for me. Android had no internet before, now it has. Running on Win10. I'm puzzled why that command line argument was necessary though?
– mipnw
Apr 1 '18 at 3:18
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Unknown file type MIME?
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You can use application/octet-stream for unknown types.
RFC 2046 states in section 4.5.1:
The "octet-stream" subtype is used to
indicate that a body contains
arbitrary binary data.
sh...
REST API Best practices: Where to put parameters? [closed]
...ion identification, api keys, whatevs.
Content - E.g. data to be stored.
Now let's look at the different places where these parameters could go.
Request headers & cookies
URL query string ("GET" vars)
URL paths
Body query string/multipart ("POST" vars)
Generally you want State to be set in...
Comment shortcut Android Studio
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For some reason it stopped working for me. Now this combo just folds the block of code. Any clue?
– danielrosero
Mar 13 '18 at 22:48
add a comm...
Is it good style to explicitly return in Ruby?
......
def plus_one_to_y(x)
@y = x + 1
puts "In plus_one_to_y"
end
Now the function is broken if anything expects a returned value. If nothing expects a returned value, it's fine. Clearly if somewhere further down the code chain, something calling this is expecting a returned value, it's g...
Ubuntu says “bash: ./program Permission denied” [closed]
...s for files on external volumes, but that is beyond the scope I can answer now.)
– Eric Postpischil
Sep 13 '18 at 18:52
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