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How to run `rails generate scaffold` when the model already exists?
...o generate a scaffold script.
it outputs:
rails g scaffold users fname:string lname:string bdate:date email:string encrypted_password:string
from your schema.rb our your renamed schema.rb. Check it
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List View Filter Android
...d.inputSearch);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg...
Actual meaning of 'shell=True' in subprocess
... variables, glob patterns, and other special shell features in the command string are processed before the command is run. Here, in the example, $HOME was processed before the echo command. Actually, this is the case of command with shell expansion while the command ls -l considered as a simple comm...
How to get a json string from url?
...Use the WebClient class in System.Net:
var json = new WebClient().DownloadString("url");
Keep in mind that WebClient is IDisposable, so you would probably add a using statement to this in production code. This would look like:
using (WebClient wc = new WebClient())
{
var json = wc.DownloadSt...
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
... ) {
}
will evaluate to true if value is not:
null
undefined
NaN
empty string ("")
0
false
The above list represents all possible falsy values in ECMA-/Javascript. Find it in the specification at the ToBoolean section.
Furthermore, if you do not know whether a variable exists (that means, if ...
Deserialize json object into dynamic object using Json.net
...n.NET allows us to do this:
dynamic d = JObject.Parse("{number:1000, str:'string', array: [1,2,3,4,5,6]}");
Console.WriteLine(d.number);
Console.WriteLine(d.str);
Console.WriteLine(d.array.Count);
Output:
1000
string
6
Documentation here: LINQ to JSON with Json.NET
See also JObject.Parse ...
How to get the integer value of day of week
How do I get the day of a week in integer format? I know ToString will return only a string.
9 Answers
...
How do I copy an object in Java?
...
Create a copy constructor:
class DummyBean {
private String dummy;
public DummyBean(DummyBean another) {
this.dummy = another.dummy; // you can access
}
}
Every object has also a clone method which can be used to copy the object, but don't use it. It's way too easy...
Best way to work with dates in Android SQLite [closed]
...HH:mm:ss) will then allow sorting by the date column.
Retrieving dates as strings from SQLite you can then format/convert them as required into local regionalised formats using the Calendar or the android.text.format.DateUtils.formatDateTime method.
Here's a regionalised formatter method I use;
p...
Carriage Return/Line Feed in .Net Resource File (App_GlobalResources)
...In the resource editor (where you can specify the name of the resource and string content) put the string content separated by Shift+Enter.
Lets say you want to type in
hello
world
Type "hello" followed by Shift+Enter and "world".
If you look at the Resources.Resx file (which is an xml fil...