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What is an ORM, how does it work, and how should I use one? [closed]
...ch the author is "Linus". Manually, you would do something like that:
book_list = new List();
sql = "SELECT book FROM library WHERE author = 'Linus'";
data = query(sql); // I over simplify ...
while (row = data.next())
{
book = new Book();
book.setAuthor(row.get('author');
book_list....
How do you implement a class in C? [closed]
...Area(shape);
}
This would let you implement a class, by "inheriting" the base class, and implementing a suitable function:
typedef struct {
ShapeClass shape;
float width, height;
} RectangleClass;
static float rectangle_computeArea(const ShapeClass *shape)
{
const RectangleClass *rect = (c...
How to create a date and time picker in Android? [closed]
...setText(
new StringBuilder()
// Month is 0 based so add 1
.append(mDay).append("/")
.append(mMonth + 1).append("/")
.append(mYear).append(" "));
showDialog(TIME_DIALOG_ID);
}
//------------...
Send an Array with an HTTP Get
... 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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Rspec doesn't see my model Class. uninitialized constant error
...
Your spec_helper file is missing some important commands. Specifically, it's not including config/environment and initializing rspec-rails.
You can add the following lines to the start of your spec/spec_helper.rb file
ENV["RAILS_EN...
SQLite - UPSERT *not* INSERT or REPLACE
...D value itself when inserting a new row. But when updating an existing row based on its name, I want it to continue to have the old ID value (obviously!).
I achieve a true UPSERT with the following construct:
WITH new (name, title, author) AS ( VALUES('about', 'About this site', 42) )
INSERT OR ...
JavaScript is in array
...if the result > -1 and false if result === -1
– bm_i
Nov 5 '12 at 19:01
11
@bm_i Which faster?...
Ways to implement data versioning in MongoDB
...nt contain a dictionary of time-stamped diffs. Something like this:
{
_id : "id of address book record",
changes : {
1234567 : { "city" : "Omaha", "state" : "Nebraska" },
1234568 : { "city" : "Kansas City", "state" : "Missouri" }
}
}
To make...
Is there a way to detach matplotlib plots so that the computation can continue?
...rocessing import Process
from matplotlib.pyplot import plot, show
def plot_graph(*args):
for data in args:
plot(data)
show()
p = Process(target=plot_graph, args=([1, 2, 3],))
p.start()
print 'yay'
print 'computation continues...'
print 'that rocks.'
print 'Now lets wait for the g...
Different types of thread-safe Sets in Java
...
On ConcurrentHashMap based set, "thus try to avoid this by estimating the needed size on creation." The size you give to the map should be over 33% larger than your estimate (or known value), since the set resizes at 75% load. I use expectedSize ...