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What are the differences between the BLOB and TEXT datatypes in MySQL?
...(byte strings). They have no character set, and sorting and comparison are based on the numeric values of the bytes in column values.
TEXT values are treated as nonbinary strings (character strings). They have a character set, and values are sorted and compared based on the collation of the charact...
CSS: fixed position on x-axis but not y?
...v class="position-fixed-y red-box">
</div>
The pattern of base pairs in the DNA double helix encodes the instructions for building the proteins necessary to construct an entire organism. DNA, or deoxyribonucleic acid, is found within most cells of an organism, and most organisms hav...
Semantic Diff Utilities [closed]
...h this scenario. Check http://www.semanticmerge.com
It merges (and diffs) based on code structure and not using text-based algorithms, which basically allows you to deal with cases like the following, involving strong refactor. It is also able to render both the differences and the merge conflicts ...
Removing item from vector, while in C++11 range 'for' loop?
...
No, you can't. Range-based for is for when you need to access each element of a container once.
You should use the normal for loop or one of its cousins if you need to modify the container as you go along, access an element more than once, or ot...
Django Admin - Disable the 'Add' action for a specific model
...rgs):
form = super().get_form(request, obj, **kwargs)
form.base_fields['service'].widget.can_add_related = False
return form
In my case I use inline
# In inline formset e.g. admin.TabularInline
# disable all
def get_formset(self, request, obj=None, **kwargs):
f...
How do you configure Django for simple development and deployment?
...ings files.
settings_local.py - host-specific configuration, such as database name, file paths, etc.
settings_development.py - configuration used for development, e.g. DEBUG = True.
settings_production.py - configuration used for production, e.g. SERVER_EMAIL.
I tie these all together with a set...
What are some good Python ORM solutions? [closed]
...()
foo_id = Int()
foo = Reference(foo_id, Foo.id)
db = create_database('sqlite:')
store = Store(db)
foo = Foo()
store.add(foo)
thing = Thing()
thing.foo = foo
store.add(thing)
store.commit()
And it makes it painless to drop down into raw SQL when you need to:
store.execute('UPDATE bars ...
How to set the margin or padding as percentage of height of parent container?
...
top works great for resizing based on browser/window height. How aboutt having a div underneath that div? How can you clear the 2nd div to be under the div that is shifted down by a top:50%??
– Federico
Nov 19 '14 a...
How to develop Desktop Apps using HTML/CSS/JavaScript? [closed]
...look at Chromium Embedded Framework. It's basically a web browser control based on chromium.
It's written in C++ so you can do all the low level OS stuff you want(Growl, tray icons, local file access, com ports, etc) in your container app, and then all the application logic and gui in html/javascr...
What does this square bracket and parenthesis bracket notation mean [first1,last1)?
... offset depending on which field are you in:
Mathematics tends to be one-based.
Certain programming languages tends to be zero-based, such as C, C++, Javascript, Python, while other languages such as Mathematica, Fortran, Pascal are one-based.
These differences can lead to subtle fence post er...