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How to generate an entity-relationship (ER) diagram using Oracle SQL Developer
... is exported. To export in a vector format, use To PDF File, instead. This allows for simplified editing using Inkscape (or other vector image editor).
These instructions may work for SQL Developer 3.2.09.23 to 4.1.3.20.
sh...
argparse store false if unspecified
...
The store_true option automatically creates a default value of False.
Likewise, store_false will default to True when the command-line argument is not present.
The source for this behavior is succinct and clear: http://hg.python.or...
How to execute a Python script from the Django shell?
...es, it's a good idea to set it up as a custom command ie
$ ./manage.py my_command
to do this create a file in a subdir of management and commands of your app, ie
my_app/
__init__.py
models.py
management/
__init__.py
commands/
__init__.py
my_co...
How to launch Safari and open URL from iOS app
...
@g_fred. Why would he not be able to include a Swift version?
– ericgu
Mar 24 '15 at 13:21
2
...
“Single-page” JS websites and SEO
... the server act as an API (and nothing more) and letting the client handle all of the HTML generation stuff. The problem with this "pattern" is the lack of search engine support. I can think of two solutions:
...
Test whether string is a valid integer
...
Additionally, based on character collation (see this related question/answer) something like d[g-i]{2} could end up not only matching dig but also dish in the collation suggested by that answer (where the sh digraph is considered a s...
how to generate migration to make references polymorphic
...ass AddImageableToProducts < ActiveRecord::Migration
def up
change_table :products do |t|
t.references :imageable, polymorphic: true
end
end
def down
change_table :products do |t|
t.remove_references :imageable, polymorphic: true
end
end
end
...
How can I convert an image into Base64 string using JavaScript?
...we extract 2 or more canvas as a single PNG?
– techie_28
Jul 11 '16 at 11:48
162
Can you please m...
String difference in Bash
...e is some difference between the two strings?
– alpha_989
Aug 10 '17 at 15:28
@alpha_989 , here's your answer: $ diff ...
How to update a menu item shown in the ActionBar?
...e-writing the desire text worked without problems:
if (mnuTopMenuActionBar_ != null) {
MenuItem mnuPageIndex = mnuTopMenuActionBar_
.findItem(R.id.menu_magazin_pageOfPage_text);
if (mnuPageIndex != null) {
if (getScreenOrientation() == 1) {
mnuPageIndex.setTitle...