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How to pass arguments into a Rake task with environment in Rails? [duplicate]
... can require the environment using the :needs option. For example:
desc "Testing environment and variables"
task :hello, :message, :needs => :environment do |t, args|
args.with_defaults(:message => "Thanks for logging on")
puts "Hello #{User.first.name}. #{args.message}"
end
Updated pe...
pandas GroupBy columns with NaN (missing) values
...3),
[1] * (2 * 3)]
col_names = ['col_a', 'col_b', 'value']
test_df = pd.DataFrame(data_block, index=col_names).T
grouped_df = safe_groupby(test_df, ['col_a', 'col_b'],
OrderedDict([('value', 'sum')]))
This will return the successful result without having ...
How to automate createsuperuser on django?
... user.save()
Example use:
./manage.py createsuperuser2 --username test1 --password 123321 --noinput --email 'blank@email.com'
This has the advantage of still supporting the default command use, while also allowing non-interactive use for specifying a password.
...
Calculating Distance between two Latitude and Longitude GeoCoordinates
I'm calculating the distance between two GeoCoordinates. I'm testing my app against 3-4 other apps. When I'm calculating distance, I tend to get an average of 3.3 miles for my calculation whereas other apps are getting 3.5 miles. It's a big difference for the calculation I'm trying to perform. Are t...
Add icon to submit button in twitter bootstrap 2
...
I have tested this in Chrome, Firefox, Safari (on win7) and IE8 inside a <form> tag as a submit button successfully
– Mr Bell
Mar 14 '12 at 21:54
...
How to effectively work with multiple files in Vim
... from the args list:
:argdelete
In your example, you could use :argedit test.pl to add test.pl to the args list and edit the file in one step.
:help args gives much more detail and advanced usage
share
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...
Sqlite LIMIT / OFFSET query
...
I made some tests and there is no difference in performance.
That is only for compatability with other sql languages.
Running time of both versions is same.
I made sqlite db with table1 with 100000 rows. I run next test
long timeLimi...
How to step through Python code to help debug issues?
...t some breakpoints from the command line:
ipdb3 -c 'b 12' -c 'b myfunc' ~/test/a.py
although -c c is broken for some reason: https://github.com/gotcha/ipdb/issues/156
python -m module debugging has been asked at: How to debug a Python module run with python -m from the command line? and since Py...
Delete all local git branches
... mkdir br
$ cd br; git init
Initialized empty Git repository in /Users/ebg/test/br/.git/
$ touch README; git add README; git commit -m 'First commit'
[master (root-commit) 1d738b5] First commit
0 files changed, 0 insertions(+), 0 deletions(-)
create mode 100644 README
$ git branch Story-123-a
$ gi...
Printing object properties in Powershell
... objects ($obj = New-Object -TypeName psobject -Property @{'SomeProperty'='Test'}) then just do a Write-Output $objects. You would pipe the output to Format-Table.
PS C:\> Run-MyScript.ps1 | Format-Table
They should really call PowerShell PowerObjectandPipingShell.
...