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Rails: fields_for with index?
...ams. So, inside your rendered _some_form.html.erb,
Index can be accessed by:
<%= f.options[:child_index] %>
You don't need to do anything else.
Update: It seems that my answer wasn't clear enough...
Original HTML File:
<!-- Main ERB File -->
<% f.fields_for :questions do |bu...
How to get orientation-dependent height and width of the screen?
I'm trying to programmatically determine the current height and width of my application. I use this:
11 Answers
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How to enable MySQL Query Log?
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It's ok to save those settings in conf file in order to be applied every time that MySQL is started, but you don't need to restart MySQL to apply this configuration. You can set it using 'SET global' like others said.
– Angel
Apr 8 '...
How to send a message to a particular client with socket.io
...e:
|id | name
|1 | Scott
|2 | Susan
"room" name will be "1-2" (ids are ordered Asc.) and on disconnect socket.io automatically cleans up the room
this way you send messages just to that room and only to online (connected) users (less packages sent throughout the server).
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How to find out if a Python object is a string?
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In order to check if your variable is something you could go like:
s='Hello World'
if isinstance(s,str):
#do something here,
The output of isistance will give you a boolean True or False value so you can adjust accordingly.
Y...
Google Map API v3 — set bounds and center
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How to prettyprint a JSON file?
...mend using python3 -m json.tool <IN >OUT, as this keeps the original order of the fields in JSON dicts. The python interpreter version 2 sorts the fields in alphabetically ascending order, which often is not, what you want.
– Kai Petzke
Jan 20 '19 at 17:0...
How do I make Vim do normal (Bash-like) tab completion for file names?
...ide a list with the same elements, and they may just appear in a different order.
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How does Java Garbage Collection work with Circular References?
...e stack of a running thread..." isn't it scanning stacks of all threads in order to not corrupt other thread's data ?
– Alexander Malakhov
Aug 9 '11 at 4:05
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Java: Detect duplicates in ArrayList?
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If your elements are somehow Comparable (the fact that the order has any real meaning is indifferent -- it just needs to be consistent with your definition of equality), the fastest duplicate removal solution is going to sort the list ( 0(n log(n)) ) then to do a single pass and look...