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update columns values with column of another table based on condition [duplicate]
I have two tables...
2 Answers
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Changing the “tick frequency” on x or y axis in matplotlib?
...tor:
import matplotlib.ticker as plticker
loc = plticker.MultipleLocator(base=1.0) # this locator puts ticks at regular intervals
ax.xaxis.set_major_locator(loc)
There are several different types of locator depending upon your needs.
Here is a full example:
import matplotlib.pyplot as plt
impo...
How can I recursively find all files in current and subfolders based on wildcard matching?
How can I recursively find all files in current and subfolders based on wildcard matching?
16 Answers
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Initialize class fields in constructor or at declaration?
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Actually it does matter. If the base class constructor calls a virtual method (which is generally a bad idea, but can happen) which is overridden in the derived class, then using instance variable initializers the variable will be initialized when the metho...
Split string based on regex
... 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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Why does Twitter Bootstrap Use Pixels for Font Size?
...but in real life? Does anyone have REAL examples of users stucked on pixel based websites? With real stats and real problems that pixels causes? This is the real question in this debate I think. The lack of proof is why most of people use PX.
– adriendenat
Aug ...
Converting an int to std::string
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Overkill? Based on what? boost.org/doc/libs/1_53_0/doc/html/boost_lexical_cast/…
– Catskul
Jun 3 '13 at 22:34
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Rails - How to use a Helper Inside a Controller
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You can use
helpers.<helper> in Rails 5+ (or ActionController::Base.helpers.<helper>)
view_context.<helper> (Rails 4 & 3) (WARNING: this instantiates a new view instance per call)
@template.<helper> (Rails 2)
include helper in a singleton class and then singleton.h...
What's the best manner of implementing a social activity stream? [closed]
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I have created such system and I took this approach:
Database table with the following columns: id, userId, type, data, time.
userId is the user who generated the activity
type is the type of the activity (i.e. Wrote blog post, added photo, commented on user's photo)
data is a se...
What's the difference between QMainWindow, QWidget and QDialog?
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A QWidget is the base class for all drawable classes in Qt. Any QWidget-based class can be shown as a window by showing it when it has no parent.
A QDialog is based on QWidget, but designed to be shown as a window. It will always appear in...