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How can I overwrite a getter method in an ActiveRecord model?
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The Rails Style Guide recommends using self[:attr] over read_attribute(:attr).
You can use it like this:
def name
name_trans || self[:name]
end
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How to read from standard input in the console?
I would like to read standard input from the command line, but my attempts have ended with the program exiting before I'm prompted for input. I'm looking for the equivalent of Console.ReadLine() in C#.
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How to save a dictionary to a file?
... save_obj seems to require that the file obj/'+ name + '.pkl already exist. I created a dictionary named Q, populated it, and made the call save_obj(Q, "Qtable") I got an error: FileNotFoundError: [Errno 2] No such file or directory: 'obj/Qtable.pkl' How does one create the file in the f...
Reading file contents on the client-side in javascript in various browsers
I'm attempting to provide a script-only solution for reading the contents of a file on a client machine through a browser.
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Does Java read integers in little endian or big endian?
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I stumbled here via Google and got my answer that Java is big endian.
Reading through the responses I'd like to point out that bytes do indeed have an endian order, although mercifully, if you've only dealt with “mainstream” microprocessors you are unlikely to have ever encountered it as In...
How to export and import a .sql file from command line with options? [duplicate]
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If you're already running the SQL shell, you can use the source command to import data:
use databasename;
source data.sql;
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How can I escape white space in a bash loop list?
...h this requires that your find support -print0:
# this is safe
while IFS= read -r -d '' n; do
printf '%q\n' "$n"
done < <(find test -mindepth 1 -type d -print0)
You can also populate an array from find, and pass that array later:
# this is safe
declare -a myarray
while IFS= read -r -d ''...
Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...s where there is a cascade save between object A and B, but object B has already been associated with the session but is not on the same instance of B as the one on A.
What primary key generator are you using?
The reason I ask is this error is related to how you're telling hibernate to ascertain ...
Fastest way to tell if two files have the same contents in Unix/Linux?
...ious concern. cmp is still more efficient though, since it doesn't have to read the entire file in the case where the files don't match.
– Ajedi32
May 5 '16 at 14:41
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Read String line by line
Given a string that isn't too long, what is the best way to read it line by line?
11 Answers
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