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Tab Vs Space preferences in Vim
Vim is very accommodating when it comes to tab Vs. space preferences. As I understand it, the tabstop setting indicates the width of a tab character. The shiftwidth setting specifies how many columns to increment/decrement when using the << and >> commands, whereas the softtabst...
How can I do SELECT UNIQUE with LINQ?
...
The Distinct() is going to mess up the ordering, so you'll have to the sorting after that.
var uniqueColors =
(from dbo in database.MainTable
where dbo.Property == true
select dbo.Color.Name).Distinct...
How does autowiring work in Spring?
...he application context.
What is "living" in the application context? This means that the context instantiates the objects, not you. I.e. - you never make new UserServiceImpl() - the container finds each injection point and sets an instance there.
In your controllers, you just have the following:
...
How can I drop all the tables in a PostgreSQL database?
...ur tables are in a single schema, this approach could work (below code assumes that the name of your schema is public)
DROP SCHEMA public CASCADE;
CREATE SCHEMA public;
If you are using PostgreSQL 9.3 or greater, you may also need to restore the default grants.
GRANT ALL ON SCHEMA public TO post...
Compare dates in MySQL
...abase that is between 2 given dates.
The column from the database is DATETIME, and I want to compare it only to the date format, not the datetime format.
...
Programmatically change log level in Log4j2
...nging the log level in Log4j2. I tried looking at their configuration documentation but that didn't seem to have anything. I also tried looking in the package: org.apache.logging.log4j.core.config , but nothing in there looked helpful either.
...
How to copy files from 'assets' folder to sdcard?
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If anyone else is having the same problem, this is how I did it
private void copyAssets() {
AssetManager assetManager = getAssets();
String[] files = null;
try {
files = assetManager.list("");
} catch (IOException e) {
Log....
jQuery posting JSON
... should be a stringified JavaScript object:
data: JSON.stringify({ "userName": userName, "password" : password })
To send your formData, pass it to stringify:
data: JSON.stringify(formData)
Some servers also require the application/json content type:
contentType: 'application/json'
There's ...
Difference between map, applymap and apply methods in Pandas
Can you tell me when to use these vectorization methods with basic examples?
10 Answers
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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
...jango 1.9 added the Field.disabled attribute:
The disabled boolean argument, when set to True, disables a form field using the disabled HTML attribute so that it won’t be editable by users. Even if a user tampers with the field’s value submitted to the server, it will be ignored in favor of ...