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What is the purpose of the word 'self'?
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But in __init__(self) method, it accepts self, then even without creating the object, how does it refer to itself?
– saurav
Jan 28 '18 at 10:10
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How to load db:seed data into test database automatically?
...nder require 'rspec/rails' in my rails_helper file. If you are using database_cleaner gem - it will require a little tweaking to make sure you don't lose your seed data after each test and you can find that in the documentation of the gem it self
– MageeWorld
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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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mysql -> insert into tbl (select from another table) and some default values [duplicate]
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INSERT INTO offer_masti.city (NULL, '1', '1', citydb.city_name, NULL, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP) select test.cities.city as city_name from test.cities as citydb; i am using this query it give me error can any one help me to solve...
Can you grab or delete between parentheses in vi/vim?
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\_______\___---> Cursor range
assuming that your cursor is inside the above mentioned cursor range, you can issue the following commands :
di( --> Deletes '5.0/9.0'
ci( --> Substitutes '5.0/9.0'
yi( --> Y...
Rails Root directory path?
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which returns a Pathname object. If you want a string you have to add .to_s. If you want another path in your Rails app, you can use join like this:
Rails.root.join('app', 'assets', 'images', 'logo.png')
In Rails 2 you can use the RAILS_ROOT constant, which is a string.
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Why is Everyone Choosing JSON Over XML for jQuery? [closed]
I thought XML is highly portable and can be used as a mini database. I have seen XML used everywhere. I even see large companies switching over to JSON . Even Microsoft has integrated support for JSON. What is all the hype over JSON?
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how to create a file name with the current date & time in python?
... human readable.
from datetime import datetime
datetime.now().strftime("%Y_%m_%d-%I_%M_%S_%p")
'2020_08_12-03_29_22_AM'
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When to use RDLC over RDL reports?
...ocial.msdn.microsoft.com/forums/en-US/sqlgetstarted/thread/82dd5acd-9427-4f64-aea6-511f09aac406/
You can
Calculating distance between two points, using latitude longitude?
... interested in height
* difference pass 0.0. Uses Haversine method as its base.
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* lat1, lon1 Start point lat2, lon2 End point el1 Start altitude in meters
* el2 End altitude in meters
* @returns Distance in Meters
*/
public static double distance(double lat1, double lat2, double lon1,
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