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css label width not taking effect
...e to align the labels and the input fields.
For some reason when I give a width to the label selector, nothing happens:
6 A...
There can be only one auto column
...n I added primary key as below it started working:
CREATE TABLE book (
id INT AUTO_INCREMENT NOT NULL,
accepted_terms BIT(1) NOT NULL,
accepted_privacy BIT(1) NOT NULL,
primary key (id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
...
Delete a key from a MongoDB document using Mongoose
...s. So you can do the action in question by this:
User.collection.update({_id: user._id}, {$unset: {field: 1 }});
Since version 2.0 you can do:
User.update({_id: user._id}, {$unset: {field: 1 }}, callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field...
Add Foreign Key to existing table
...
To add a foreign key (grade_id) to an existing table (users), follow the following steps:
ALTER TABLE users ADD grade_id SMALLINT UNSIGNED NOT NULL DEFAULT 0;
ALTER TABLE users ADD CONSTRAINT fk_grade_id FOREIGN KEY (grade_id) REFERENCES grades(id);
...
Why do I need to override the equals and hashCode methods in Java?
...
Joshua Bloch says on Effective Java
You must override hashCode() in every class that overrides equals(). Failure to do so will result in a violation of the general contract for Object.hashCode(), which will prevent your class from functioning properly in conjunction with all...
Get root view from current activity
... view of your activity (so you can add your contents there) use
findViewById(android.R.id.content).getRootView()
Also it was reported that on some devices you have to use
getWindow().getDecorView().findViewById(android.R.id.content)
instead.
Please note that as Booger reported, this may be b...
How can I get LINQ to return the object which has the max value for a given property? [duplicate]
...l loop through only once.
Item biggest = items.Aggregate((i1,i2) => i1.ID > i2.ID ? i1 : i2);
Thanks Nick - Here's the proof
class Program
{
static void Main(string[] args)
{
IEnumerable<Item> items1 = new List<Item>()
{
new Item(){ ClientID ...
Why (0-6) is -6 = False? [duplicate]
...CPython and you shouldn't rely on this. For instance, PyPy implemented the id of integer to return itself, so (0-6) is -6 is always true even if they are "different objects" internally; it also allows you to configure whether to enable this integer caching, and even set the lower and upper bounds. B...
How to link to apps on the app store
I am creating a free version of my iPhone game. I want to have a button inside the free version that takes people to the paid version in the app store. If I use a standard link
...
pass string parameter in an onclick function
... answered Mar 10 '12 at 2:41
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