I'm using ForegroundColorSpan to highlight some portion of my text in EditText.
Jeff feeling hungry at NorthBay.
In above example, I've to identify NorthBay based on its id in my db. Later on, I have to perform some querying based on this id. Apparently there seems no way to add custom data to ForegroundColorSpan instance. What could be a possible workaround for this?
Figured out the solution myself. I created a custom span class as;
public static class MySpan extends ForegroundColorSpan {
private Object instance;
public Object getInstance() {
return instance;
}
public void setInstance(Object instance) {
this.instance = instance;
}
}
Then used this span on to style substring in textview.
Related
In a SYMFONY FORM (ORM is not use (PDO is used for DB query instead)).
I have a class MyEntityType in which the buildForm function has:
$builder->add('my_attribute',ChoiceType::class,array(
'choices'=>$listForMyAttribute,
'multiple'=>'true',
'attr'=>array('data-native-menu'=>'false'),
'label'=>'Multiple Select on my attribute'
));
My attribute is an array of an entity named MyEntity which has:
/**
* #Assert\NotBlank()
*/
private $myAttribute;
With a getter and a setter for that variable $myAttribute.
When I submit the form in the Controller, it doesn't pass the validation check and logs this error:
Unable to reverse value for property path "myAttribute" : Could not find all matching choices for the given values.
When I start to look for solution around this error message, it leads to something named "How to Use Data Transformers" in SYMFONY Cookbook; And it seems a solution would involve to create new Class and write a lot of code for something that one should be able to by-pass in a much straight forward way.
Does anyone have an idea?
My problem was that my array $listForMyAttribute was defined in the buildForm() function and its definition was relying on some conditional.
The conditional to make the array were met when this one was displayed for the first time.
After pushing the submit button, the buildForm was regenerated in the Controller, this second time, the condition were not met to make the array $listForMyAttribute as it was on the first display. Hence the program was throwing a "contraint not met error" because the value submited for that field could not be find.
Today I face exactly the same problem. Solution is simple as 1-2-3.
1) Create utility dummy class DoNotTransformChoices
<?php
namespace AppBundle\DataTransformer;
use Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface;
class DoNotTransformChoices implements ChoiceListInterface
{
public function getChoices() { return []; }
public function getValues() { return []; }
public function getPreferredViews() { return []; }
public function getRemainingViews() { return []; }
public function getChoicesForValues(array $values) { return $values; }
public function getValuesForChoices(array $choices) { return $choices; }
public function getIndicesForChoices(array $choices) { return $choices; }
public function getIndicesForValues(array $values) { return $values; }
}
2) Add to your field the following additional option:
...
'choice_list' => new DoNotTransformChoices,
...
3) Congratulations!
Can we create a Custom LifeCycle using StructureMap wherein the object has to be in Singleton scope for specified preiod of time, after which the object has to be created again. In short, can we create objects every 20 or 30 mins.
Sure, see e.g. http://www.mikeobrien.net/blog/creating-structuremap-lifecycle-for-wcf/ for an example of how to implement ILifecycle (in this case backed by WCF, but you can just as well make it thread-local, or static). You'll just have to add the logic to return a new IObjectCache instance after x minutes have passed.
Copy/paste of the code there:
public class WcfOperationLifecycle : ILifecycle
{
public static readonly string ITEM_NAME = "STRUCTUREMAP-INSTANCES";
public void EjectAll()
{
FindCache().DisposeAndClear();
}
public IObjectCache FindCache()
{
if (!OperationContext.Current.OutgoingMessageProperties.ContainsKey(ITEM_NAME))
OperationContext.Current.OutgoingMessageProperties.Add(ITEM_NAME, new MainObjectCache());
return (IObjectCache)OperationContext.Current.OutgoingMessageProperties[ITEM_NAME];
}
public string Scope { get { return "WcfOperationLifecycle"; } }
}
I found grails criteria and want to customize sorting options.
E.g. I have domain Book and I want to make some criteria:
Book.createCriteria().list {
//some code like ilike('name', 'book')
...
order(params.sort, params.order)
}
I want to make specific sorting rule, e.g. by name.trim().
How can I do this?
Based on a solution provided here, by extending the hirbernate Order class, you can customize it to accept functions and use it with createCriteria.
I wont be surprised, if there is a nicer and easier approach since this source is pretty old and also Grails is cooler than this :D
First you need a class extending Hibernate Order:
Originally by:spostelnicu
public class OrderBySqlFormula extends Order {
private String sqlFormula;
protected OrderBySqlFormula(String sqlFormula) {
super(sqlFormula, true);
this.sqlFormula = sqlFormula;
}
public String toString() {
return sqlFormula;
}
public String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
return sqlFormula;
}
public static Order sqlFormula(String sqlFormula) {
return new OrderBySqlFormula(sqlFormula);
}
}
Then you can pass instance of this class to your createCriteria:
def ls = Domain.createCriteria().list {
order OrderBySqlFormula.sqlFormula("TRIM(name)")
}
Note1: You can pass any formula to sqlFormula as long as the underlying database accepts it.
Note2: Using such approach might cause migration challenges.
Hope it helps
I want to implement fluent api to my mvc sites. I got the basics.
So implement object library such as:
public class UIElement{/*...*/}
public class ButtonBase : UIElement{/*...*/}
public class LinkButton : ButtonBase {/*...*/}
public static class Extensions
{
public static T UIElementMethod<T>(this T element, string title)
where T : UIElement
{
return element;
}
public static T ButtonBaseMethod<T>(this T element, string title)
where T : ButtonBase
{
return element;
}
public static T LinkButtonMethod<T>(this T element, string title)
where T : LinkButton
{
return element;
}
}
But how to use it in razor view without some flush method calling.
#Html.UIproject().LinkButton()
.UIElementMethod("asd")
.ButtonBaseMethod("asd")
.LinkButtonMethod("asd")
But it returns the name of the class. I tried to make an implicit operator to MvcHtmlString but it's not called.
Any idea how to achieve this. How to know it's the and of the chain. I like the way how the Kendo UI work.
Thanks,
Péter
Your UIElement classes need to implement the IHtmlString interface. This interface's ToHtmlString method gets called by Razor and should return an HTML-encoded string.
So I would implement this on the abscract base UIElement and create RenderHtml method which can be implemented by the concrete LinkButton, etc. classes:
public abstract class UIElement : IHtmlString
{
public string ToHtmlString()
{
return RenderHtml(); // This should return an HTML-encoded string.
}
public override string ToString()
{
return ToHtmlString();
}
protected abstract string RenderHtml();
}
If you check KendoUI in Reflector/JustDecompile/dotPeek in the WidgetBase class you will see the same pattern.
I haven't tried it, in this particular situation, but you might be able to use an implicit cast to convert from a fluent builder to the object you need (see this blog).
I have created Guice binding annotations that allow me to bind two different instances of a class depending on the annotation e.g.:
bind(Animal.class).withAnnotation(Cat.class).toInstance(new Animal("Meow"));
bind(Animal.class).withAnnotation(Dog.class).toInstance(new Animal("Woof"));
I was hoping to be able to create a provider method that provides a List that is a dependency for one of my classes, but can't figure out how to use the annotations for this:
#Provider
List<Animal> provideAnimalList() {
List<Animal> animals = new ArrayList<Animal>();
animals.add(#Cat Animal.class); // No, but this is what I want
animals.add(#Dog Animal.class); // No, but this is what I want
return animals;
}
So I was assuming that I would just be able to use the annotations in the argument to add() method of the List... but no.
How should I be approaching this? It seems to me it would be simpler simply to new the two instances of the Animal class and maybe this is not how the binding annotations were meant to be used.
I'd appreciate comments on the best use of the binding annotations in this scenario.
Thanks
If it is really what you want, here a working solution :
public class AnimalModule extends AbstractModule {
#Override
protected void configure() {
bind(Animal.class).annotatedWith(Cat.class).toInstance(new Animal("Meow"));
bind(Animal.class).annotatedWith(Dog.class).toInstance(new Animal("Woof"));
}
#Provides
List<Animal> provideAnimalList(#Cat Animal cat, #Dog Animal dog) {
List<Animal> animals = new ArrayList<Animal>();
animals.add(cat);
animals.add(dog);
return animals;
}
public static void main(String[] args) {
List<Animal> animals = Guice.createInjector(new AnimalModule()).getInstance(Key.get(new TypeLiteral<List<Animal>>() {
}));
for (Animal animal : animals) {
System.out.println(animal);
}
}
}
Annotations :
#Retention(value = RetentionPolicy.RUNTIME)
#BindingAnnotation
public #interface Cat {
}
Output :
Animal{sound='Meow'}
Animal{sound='Woof'}
However :
Don't create specific annotations, seems unnecessary in that case. Use #Named instead,
You may consider Multibindings to solve that problem.