Using I am trying to paint on my jsp some comboboxes which must be connected with variable in my Action class. Because of amount of my comboboxes are dynamic calculated I cann't create exact amount of variables in Action class. So I was trying to apply principle of index to my comboboxes. But my Action class gets misunderstood Object value.
<s:iterator value="question.answers" id="entry" status="status">
<s:property value="text"/>
<s:combobox list = "question.answers" listValue="rightText" listKey="rightText" name="%{'chosenComboOption['+#status.count+']'}" emptyOption="false"/>
<br />
</s:iterator>
Please help me to get chosen values from my comboboxes!
A couple of things jump out at me. First of all, you don't want to use "status.count", because that returns the total number of items in the list, not the current iteration index. Instead you would want to use "status.index". Second, I think your syntax is incorrect in the index selection. Trying to do things manually like this is a sort of black magic that you have to tweak to try to get just right.
In a project that I was working on recently, I had to do something similar to this. Not sure if this exact syntax will work for you or not, but it is worth a shot. Try to change:
name="%{'chosenComboOption['+#status.count+']'}"
to this:
name="chosenComboOption[%{#status.index}]"
Related
I'm hopping this awesome community can steer me on the right direction. I came from the flash/flex/js world, and I like how simple it is to define an item renderer in flex. Here is what I'm trying to accomplish:
I have an Angular component which consist of a form and a html table. I have the columns, headers, rows, etc. all populating correctly using ng-repeat. I want to be able to define column "renderers", so if someone passes me a column property like "renderAs: 'button'" or "renderAs: 'progress'" I should be able to render the entire column as a button, or progress bar, etc.
Here is what I've tried so far:
ng-bind-html="getColRenderer(column.renderAs, column.value)" which
returns HTML based on 'renderAs'. As you all probably know, this
will only work with basic HTML stuff, but I cannot append an
'ng-click', or an 'href' due to angular's security. So, I opted
for something else.
I semi-have a good solution embedding a "ng-switch" inside my
ng-repeat. I had an ng-if but with several types of potential
"renderers" I opted for the switch. This somehow seems like future
problems while trying to display too many columns or rows, just my
fears.
Decorators - I like decorators, but it seemed a bit too much for
something as a simple button that calls something on click or a
progress bar with 2 values. So, I halted going into this path, but
if this is the shinning path all walk, then by all means.
I hope someone out there has ran/done something like this and can steer me on the right course of action. If the ng-switch or ng-if is okay, then I'm good to go.
Once again, thank you in advanced.
Angular newb here, thoughts appreciated...
Say I want an input field to control the window title as you type. A field with a model binding and no associated controller acts on keypress, as intended. However, there has to be a bit more logic to it -- default value before any user input, also used if the input is blanked.
Adding a controller bound to enclosing elements gives a place for that logic, but the change-on-keypress behavior is gone. I'm sure it's possible to recreate it by hand or with ui, but since it's inherently there without the controller, I'm wondering if I'm missing the simple clean way.
Simple version, acts on keypress, but with no smarts:
<title ng-bind-template="{{windowTitle}}">Default Title (not seen)</title>
<input ng-model="windowTitle" type="text">
Putting controller bindings on the head (for the title) and a containing div (for the input), and setting a default $scope.windowTitle inside the controller function does use that default value, but it breaks the auto-update.
I know in real life you'd want a real model, but what I'm really trying to understand is these two ways angular appears to work. I haven't found anything specifically describing two different implicit input binding behaviors, but I haven't been through all the docs yet.
How should I be thinking about this?
Edit: It's not the window title or default value per se that I'm interested in. I'm trying to understand this:
When there's no controller on either the field or the title, typing in the field changes the window title immediately, on keypress. The title is directly linked to the field value, with no other angular hookup.
With controller bindings around the title and the field, typing in the field has no effect on the title.
What I've since realized (I think) is that ng-controller bindings create a new instance of the controller each time. Here's the non-working code I didn't show before:
<title ng-controller="TitleCtrl" ng-bind-template="{{windowTitle || 'Foo'}}">Foo</title>
...
<label ng-controller="TitleCtrl">
<input ng-model="windowTitle" type="text">
{{windowTitle}}
</label>
The value set by the model binding to the field is shown correctly within that instance of that controller, and updates on keypress, as before. But since those two controller instances are separate, the binding to the title works but the data it points to isn't bound to the field.
Isn't that right? The reason it works with no controllers is that that makes the value global, so the title binding sees the value set by the field binding.
So what's the canonical way to reference data from some other area? Create a service?
I realize that this is basic angular stuff, just getting started here, so thanks!
Edit 2
On reflection, I've come to seriously disrespect this whole question, even though I wrote it.
It's based on way-too-early poor understanding of the Angular application model. I had worked through only part of the official tutorials, and jumped ahead to removing all the js from a not big but not totally trivial existing app, and exploring what Angular could to in that context.
I got some very quick bang for the buck, getting several pieces of functionality working with very little code, and simple, clear markup, felt good. But I really had short-circuited internalizing the Angular way of thinking, and my quick and dirty no-architecture approach broke down when different parts of the page needed to coordinate with each other, as in this question.
I've postponed that project while I go back to tutorials and other learning. If other folks think this question should be deleted, I'd add my vote. Or maybe it's a useful on some level, ignorant though it is.
Well, there are multiple ways to achieve the behavior you want without using an explicit controller and model, you could:
<title ng-bind-template="{{windowTitle && windowTitle || 'default'}}"></title>
Or in a more simple way:
<title>{{windowTitle && windowTitle || 'default' }}</title>
In both cases, we're using the conditional expression:
(condition) && (answer if true) || (answer if false)
You should however strive to remove logic from the templates.
SmartGWT has this property for a TreeGrid object:
employeeTreeGrid.setSelectionAppearance(SelectionAppearance.CHECKBOX);
This by default 'prepends' every nodes (including root) with checkbox.
(Just making myself clear.)
Also, I am aware of this similar solved question:
GWT tree with checkbox:How to get all checked tree items?
However, I do not seek this kind of solution..
What I'm looking for is a more efficient way, where I don't have to loop through 1000 items.
Is there any way to do this, if possible, using the widget I am using now?
If not, is there any other way, using other widget?
Thank you very much!
I think as you use SelectionAppearance.CHECKBOX you tell to the grid that the selected records are marked by the checkbox field value. So every time you check one you select a record.
You can get the set of selected records by either getSelection() method or getSelectedRecords(boolean) because of deprecation of the previuous one.
You can have a look at the code of this example of the smartgwt showcase.
The auto_complete_for dealio from script.aculo.us is great an all, but is there a way for me to selectively disable the fact that it always auto-selects the first item in the list?
The problem is that, if I want to type my own entry that is new, and novel, I don't want the first item in the list to be auto-selected. The reason is because when I TAB out of the field, it selects, and fills the text box with that first item.
I got around that, somewhat, by making the first item in the list the same as what I'm typing, but that's not perfect either, because the auto_complete list doesn't always update with every keystroke, depending on how fast I type. I've tried setting the list refresh rate to the lowest value (1 millisecond) but no go.
What I really want is an option in "auto_complete_for" that doesn't select that first item at all - the same way that Google Instant doesn't automatically select the first suggested search phrase - you have to arrow-down to select one.
Maybe I can do this via an HTML option that I'm missing?
Looking at the source, there doesn't appear to be an option for that, but I bet if you changed line 284 of controls.js to this.index = -1; it would do what you want.
Otherwise, it might be time to look for a different autocomplete widget.
If your requirements are too far away from the available plugin, then I guess there is no point in tinkering around. Its best to write your own JS code.
You might want to consider this: https://github.com/laktek/jQuery-Smart-Auto-Complete
or this : https://github.com/reinh/jquery-autocomplete
I'll add another alternative that works great with Rails 3:
http://github.com/crowdint/rails3-jquery-autocomplete
I recently implemented auto complete for more than a field for Rails 2.0.2.
The plugin I used is:- https://github.com/david-kerins/auto_complete . Not sure if it supports Rails 3.
I have also encountered issues on implementing the above scenario and have posted questions( Implementing auto complete for more than one field in Rails ; Implementing a OnClick kind of functionality and formatting wrt Rails Partial-Views ) on stackoverflow for the same, I have been lucky on getting things working for me based on my requirement.
Kindly refer to these questions, they might have relevance to your requirement.
I am working on some code that scrapes a page for two css classes on a page. I am simply using the Hpricot search method for this as so:
webpage.search("body").search("div.first_class | div.second_class")
...for each item found i create an object and put it into an array, this works great except for one thing.
The search will go through the entire html page and add an object into an array every time it comes across '.first_class' and then it will go through the document again looking for '.second_class', resulting in the final array containing all of the searched items in the incorrect order in the array, i.e all of the '.first_class' objects, followed by all the '.second_class' objects.
Is there a way i can get this to search the document in one go and add an object into the array each time it comes across one of the specified classes, giving me an array of items that is in the order they are come across in on the page i am scraping?
Any help much appreciated. Thanks
See the section here on "Checking for a Few Attributes":
http://wiki.github.com/why/hpricot/hpricot-challenge
You should be able to stack the elements in the same way as you do attributes. This feature is apparently possible in Hpricot versions after 2006 Mar 17... An example with elements is:
doc.search("[#href][#type]")
Ok so it turned out i was mistaken and this didn't do anything different to what i previously had at all. However, i have come up with a solution, wether it is the most suitable or not i am not sure. It seems like a fairly straight forward for an annoying problem though.
I now perform the search for the two classes above as i mentioned above:
webpage.search("body").search("[#class~='first_class']|[#class~='second_class']")
However this still returned an array firstly containing all the divs with a class of 'first_class' followed by all divs with a class of 'second_class'. So to fix this and get an array of all the items as they appear in order on the page, i simply chain the 'add_class' method with my own custom class e.g. 'foo_bar'. This then allows me to perform another search on the page for all divs with just this one tag, thus returning an array of all the items i am after, in the order they appear on the page.
webpage.search("body").search("[#class~='first_class']|[#class~='second_class']").add_class("foo_bar")
webpage.search("body").search("[#class~='foo_bar']")
Thanks for the tip. I hadn't spotted that in the documentation and also found another page i hadnt seen either. I have fixed this with the following line:
webpage.search("body").search("[#class~='first_class']|[#class~='second_class']")
This now adds an object into the array each time it comes across one of the above classes in the document. Brilliant!