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How to find elements by class
...]) It's safer if you don't have many classes.
– Nuno André
Jul 7 '15 at 14:06
4
This should be t...
SQLAlchemy: cascade delete
...ession.query().filter().delete() (which doesn't put elements in the memory and deletes directly from db).
Using this method sqlalchemy's cascade='all, delete' doesn't work. There is a solution though: ON DELETE CASCADE through db (note: not all databases support it).
class Child(Base):
__table...
Converting any string into camel case
...
Great code, and it ended up winning jsperf.com/js-camelcase/5 . Care to contribute a version that can handle (remove) non-alpha chars? camelize("Let's Do It!") === "let'SDoIt!" sad face. I'll try myself but fear I will just add anothe...
How to Update Multiple Array Elements in mongodb
...1243
As a work around you can:
Update each item individually
(events.0.handled events.1.handled
...) or...
Read the document, do the edits
manually and save it replacing the
older one (check "Update if
Current" if you want to ensure
atomic updates)
...
How to read/process command line arguments?
I am originally a C programmer. I have seen numerous tricks and "hacks" to read many different arguments.
17 Answers
...
Python 2.7 getting user input and manipulating as string without quotations
I want to get a string from a user, and then to manipulate it.
8 Answers
8
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How to concatenate two MP4 files using FFmpeg?
...ess hence why I chose ffmpeg. I'm converting the two files into .ts files and then concatenating them and then trying to encode that concated .ts file. The files are h264 and aac encoded and I'm hoping to keep the quality the same or as close to original as possible.
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How to join two sets in one line without using “|”
Assume that S and T are assigned sets. Without using the join operator | , how can I find the union of the two sets? This, for example, finds the intersection:
...
Resetting generator object in Python
...ls.tee) - this uses lazy load strategy, so items to list copied only on demand
– Dewfy
Aug 13 '09 at 13:23
11
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How to query SOLR for empty fields?
I have a large solr index, and I have noticed some fields are not updated correctly (the index is dynamic).
7 Answers
...