mixins

Windsor MixIn is a Singleton?

隐身守侯 提交于 2019-12-02 09:43:41
I have a MixIn that requires some state to operate. I am registering it as so.. container.Register(Component.For(Of ICat) _ .ImplementedBy(Of Cat) _ .LifeStyle.Transient _ .Proxy.MixIns(New MyMixin())) When I call container.Resolve(of ICat), I get back a proxy for ICat, which also implements IMixin. However, if I call container.Resolve(of ICat) again, I get a new proxy for ICat, but MyMixin is the SAME instance. (Which makes sense because I didn't tell the container any way to create IMixin) So, IMixin is a Singleton, even though the Component's lifestyle is Transient. How can I tell Windsor,

SASS: Get value of existing background string and add to it?

隐身守侯 提交于 2019-12-02 08:02:19
I'd like to additively build backgrounds in SASS/Compass, ignorant of the existing background string. I am able to accomplish by writing to a global var, but it seems sloppy. Pseudo: =mixin-add-icon // add a background icon =mixin-add-gradient-from-color($color: blue !default) // add a background gradient =mixin-add-texture-bg // add a bg texture a background: blue +mixin-add-texture-bg // this should take the existing bg and add texture to it &.selected +mixin-add-gradient-from-color() +mixin-add-icon // these two should take the existing bgs strings from <a> and add to them Am I missing

Why do i get an stackoverflow error when using jackson even though using @JsonIgnoreProperties

最后都变了- 提交于 2019-12-02 07:18:05
I am trying to serialize a DefaultMutableTreeNode oject with jackson into a json string. Therefore i need to use a mix-in abstract class that is kind of a proxy to the DefaultMutableTreeNode class. This is probably because of self-reference fields but i am not able to recognize them. Mix-in class: @JsonIgnoreProperties(ignoreUnknown = true) public abstract class DefaultMutableTreeNodeMixIn { @JsonCreator public DefaultMutableTreeNodeMixIn(@JsonProperty Object userObject) {}; @JsonCreator public DefaultMutableTreeNodeMixIn(@JsonProperty Object userObject, @JsonProperty boolean allowsChildren) {

post method in generic class based view is not called upon form submission in Django?

久未见 提交于 2019-12-02 05:40:48
I have a written a mixin that overrides the POST and get_from_kwargs of CreateView . I am doing AJAX submission of my form. I see that get_from_kwargs is called by printing on the console. But none of the other methods such as post , form_valid or form_invalid is being called. I have placed print statements in these methods but none of them is being called. Here is my mixin: class PendFormMixin(object): form_hash_name = 'form_hash' pend_button_name = 'pend' def get_form_kwargs(self): """ Returns a dictionary of arguments to pass into the form instantiation. If resuming a pended form, this will

Common beforeInsert and beforeUpdate methods from Mixin for common domain columns

▼魔方 西西 提交于 2019-12-02 03:02:48
Most of the domain objects our company uses will have some common properties. These represent the user that created the object, the user that last updated the object, and the program they used to do it. In the interest of DRY ing out my domain classes, I want to find some way to add the same beforeInsert and beforeUpdate logic to all domain classes that have these columns without interfering with those that don't. How I'd like to do it is using a Mixin with its own beforeInsert and beforeUpdate methods. I know you can use Mixins on domain classes . package my.com import my.com.DomainMixin

In Scala how can I advise my own methods?

╄→尐↘猪︶ㄣ 提交于 2019-12-02 01:33:24
问题 I want to do this: trait Renderable { def render: String } trait Parens extends Renderable { abstract override def render = "(" + super.render + ")" } object Foo extends Renderable with Parens { def render = "Hello" } But this does not work because the linearization order puts Parens after Foo (Foo always comes, of course) so Parens can't advise Foo.render. I end up doing this: trait FooRender { def render = "Hello" } object Foo extends FooRender with Parens { } But sometimes I really don't

In Scala how can I advise my own methods?

故事扮演 提交于 2019-12-02 00:33:21
I want to do this: trait Renderable { def render: String } trait Parens extends Renderable { abstract override def render = "(" + super.render + ")" } object Foo extends Renderable with Parens { def render = "Hello" } But this does not work because the linearization order puts Parens after Foo (Foo always comes, of course) so Parens can't advise Foo.render. I end up doing this: trait FooRender { def render = "Hello" } object Foo extends FooRender with Parens { } But sometimes I really don't want to do that because it breaks things up. As far as I can tell, linearization order is the only thing

SCSS repeat value?

一曲冷凌霜 提交于 2019-12-01 19:29:59
I'm trying to work out on SCSS how I would go about something like this: I would like to have a margin anywhere between 1px and 1000px and have a class for it. For example .MarginTop-x X being where I can write any value. Obviously I couldn't write out .MarginTop-1 {margin-top:1px} .MarginTop-2 {margin-top:2px} .MarginTop-3 {margin-top:3px} .MarginTop-4 {margin-top:4px} etc... Dragutescu Alexandru Well you need a @for loop to do that . SCSS : $class-slug: ".MarginTop"; $stop-loop: 4; @for $i from 0 through $stop-loop { #{$class-slug}-#{$i} { margin-top: #{$i}px; } } Compiled CSS: .MarginTop-0

Overwrite less mixin

瘦欲@ 提交于 2019-12-01 16:44:50
I wish to remove border radius from all the elements in Bootstrap. So I created custom-mixins.less and placed following lines in it, hopping that it would overwrite the original .border-radius mixin but didn't. // Border Radius .border-radius(@radius) { } So I tried following lines as an alternative which actually worked. // Border Radius .border-radius(@radius) { @radius : 0px; -webkit-border-radius: @radius; -moz-border-radius: @radius; border-radius: @radius; } I tried some mixins at http://less2css.org . It seems that less instead of overwriting the mixins, appends all the properties from

Why a module's singleton method is not visible in downstream eigenclasses where it gets mixed?

橙三吉。 提交于 2019-12-01 15:32:45
问题 I understand the regular method lookup path i.e. class, superclass/module, all the way up to BasicObject . I thought it was true for singleton version of the chain also but doesn't seem the case when you mixin a module in the meta-chain. I'd appreciate if someone can explain why in the following example Automobile module's banner method is called instead of its singleton version when I have included this module in Vehicle's eigenclass. module Automobile def banner "I am a regular method of