Tutorial by Examples: for

class MyDataObject extends DataObject { private static $db = array( 'Name' => 'Varchar' ); private static $has_one = array( 'OtherDataObject' => 'OtherDataObject' ); private static $summary_fields = array( 'Name', 'OtherDat...
class MyDataObject extends DataObject { private static $db = array( 'Name' => 'Varchar' ); private static $has_one = array( 'OtherDataObject' => 'OtherDataObject' ); private static $summary_fields = array( 'Name', 'OtherDat...
class MyDataObject extends DataObject { ... private static $has_many = array( 'OtherDataObjects' => 'OtherDataObject' ); function getCMSFields() { $fields = parent::getCMSFields(); if ($gridField = $fields->dataFieldByName('OtherDataObject...
str.contains() method can be used to check if a pattern occurs in each string of a Series. str.startswith() and str.endswith() methods can also be used as more specialized versions. In [1]: animals = pd.Series(['cat', 'dog', 'bear', 'cow', 'bird', 'owl', 'rabbit', 'snake']) Check if strings con...
Some things all beginners should know / do that will help them have a good start with VB .Net: Set the following Options: 'can be permanently set ' Tools / Options / Projects and Soluntions / VB Defaults Option Strict On Option Explicit On Option Infer Off Public Class Form1 End Class ...
The Windows.Forms.Timer component can be used to provide the user information that is not time critical. Create a form with one button, one label, and a Timer component. For example it could be used to show the user the time of day periodically. 'can be permanently set ' Tools / Options / Projec...
Julia uses similar binary operators for basic arithmetic operations as does mathematics or other programming languages. Most operators can be written in infix notation (that is, placed in between the values being computed). Julia has an order of operations that matches the common convention in mathe...
To detect the endian of the device var isLittleEndian = true; (()=>{ var buf = new ArrayBuffer(4); var buf8 = new Uint8ClampedArray(buf); var data = new Uint32Array(buf); data[0] = 0x0F000000; if(buf8[0] === 0x0f){ isLittleEndian = false; } })(); Lit...
devise_for :users, controllers: {omniauth_callbacks: 'users/omniauth_callbacks'}
gem 'omniauth-oauth2' , '~> 1.3.1' gem 'omniauth' gem 'omniauth-facebook' gem 'omniauth-twitter' gem 'omniauth-gplus' gem 'omniauth-linkedin' Run the bundle install command, restart your server and off you go!
There are times when an include file has to generate different output from the preprocessor depending on whether the compiler is a C compiler or a C++ compiler due to language differences. For example a function or other external is defined in a C source file but is used in a C++ source file. Since...
There's no built in way to search a list for a particular item. However Programming in Lua shows how you might build a set that can help: function Set (list) local set = {} for _, l in ipairs(list) do set[l] = true end return set end Then you can put your list in the Set and test for m...
To start the process: $ forever start index.js warn: --minUptime not set. Defaulting to: 1000ms warn: --spinSleepTime not set. Your script will exit if it does not stay up for at least 1000ms info: Forever processing file: index.js List running Forever instances: $ forever list i...
package main import ( "fmt" "net/http" "os" "text/template" ) var requestTemplate string = ` {{range $i, $url := .URLs}} {{ $url }} {{(status_code $url)}} {{ end }}` type Requests struct { URLs []string } func main() {...
<Window x:Class="MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://sche...
By default the Custom Tool property for a VB resource file is VbMyResourcesResXFileCodeGenerator. However, with this code generator the view (XAML) will not be able to access the resources. To solve this problem add Public before the Custom Tool property value. To select the Resources.resx file in ...
<Window x:Class="WpfApplication2.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc=&...
Conversion SpecifierType of ArgumentDescriptioni, dintprints decimaluunsigned intprints decimalounsigned intprints octalxunsigned intprints hexadecimal, lower-caseXunsigned intprints hexadecimal, upper-casefdoubleprints float with a default precision of 6, if no precision is given (lower-case used f...
// long form String sayHello(String name){ "Hello, ${name ? name : 'stranger'}." } // elvis String sayHello(String name){ "Hello, ${name ?: 'stranger'}." } Notice that the "elvis" format omits the "true" term because the original comparison...
Below is an example of a pure Xamarin Forms custom control. No custom rendering is being done for this but could easily be implemented, in fact, in my own code, I use this very same control along with a custom renderer for both the Label and Entry. The custom control is a ContentView with a Label, ...

Page 28 of 86