I am creating a MVC4 application.
In it there is a view in which the user is allowed to create a list of questions.
Each question is added one by one.
Where i stand now is on addition of every question i have to invoke the controller and then add the question in the Data Base. Which is not appropriate because it would be extremely hard if the user want to edit any question.
i want the view to handle every thing. As the questions are been added the should recite on the client side in a list of question in my model. And on the click on some final button it should go to the controller and from there to data base.
My question adding method is when a question and all its choices are entered in model bounded textboxes.. When the user press add question the question should be added to the list and the textboxes will again be null.
Kindly suggest me some topics or methods that i can look into to accomplish my task. I guess it would be possible using JQuesry or AJAX. But i have very little knowledge of it.. So i really require help.. Thank You!
Kindly suggest me some topics or methods that i can look into to accomplish my task.
If you want to use AJAX: Editing variable length list
With knockoutjs: Editing variable length list - knockout style
Related
Just to give you a brief, I'm working on a Chatbot, that will suggest the user some things, based on the answers of a few quetions. Now, most of the questions that the agent asks the user are in Yes/No and with a very little variation.
So here's the usercase:
The agent asks the user these two questions:
Did you have your meal(s) on time?
Did you work out today?
The answers to both these questions can be in a YES/NO.
In that case, if the user is asked the meal question and the user responds with a NO, the agent updates the parameter values for both the meal question as well as the workout question.
But that's something that I don't want.
I'm using the slot-filling technique here. Is there a way around this problem.
Here's my User Info Intent and the parameters that I have:
PS - I don't really want to create multiple intents for all these parameters and want to handle all these answers with just one intent
If the agent updates the parameter values for both the meal question as well as the workout question that means you're using the same parameter to host both answers, you need to use different parameters.
If would be very helpful if you shared how you have handled the dialog so far. And can I ask why do you want to use only one intent?
You can try creating a generic intent and setting both parameters as required, defining your questions as prompts for each parameter. That way the answers will be hosted in two different parameters.
I'm new in Rails, I have a Meal model which has many Products. Meals are assign to User (maybe this is important for a concept). In meals/new.html.erb I want to create new Meal as follow:
Click the button "Display Products"
On the same page (meals/new.html.erb) open modal (pop-up) with all products assigned to current user ( I have help method for current-user). It should be displayad like a list or grid with checboxes for example.
Then user can check few products and click "Confirm".
After that in meals/new.html should be appeared list of chosen products with additional input to fill their quantity.
So I have two problem here.
How should I display modal? Is needed any Ajax (I'm not so familiar with this technology)
How can I pass products between view and modal?
Could you help me a little to achieve these goals?
Regarding your first problem, displaying the modal is fairly straight forward. Essentially you will create a div with the proper bootstrap classes to be hidden when the page is loaded, and then create a button that makes it visible. I would recommend either reading over the W3Schools entry on modals, or from the appropriate part of the bootstrap javascript documentation.
Regarding your second question, this depends on exactly what you mean. The modal is part of the view, so if you're only trying to put information that is currently on the modal back onto the "page" behind it, you can do so fairly simply with javascript (copying content out of one element into another, or updating states of inputs). If, on the other hand, you're trying to use the modal to retrieve information from the server (for instance if you wanted to show a list of possible options, and then display detailed information about the selected items from the database) that would require Ajax.
If you have any snippets of code that aren't functioning as you expect, feel free to add your View to the question. In cases like this, usually the best way for us to provide help is for you to take an early crack at this, post the relevant code, and then seek answers for the things that behave unexpectedly.
I hope that helps.
I'm trying to develop page for displaying survey questions on a mobile view using mvc. I have to display one question at a time and on clicking next it should display next question.
Am having hard time to achieve this. I initially thought I could using paging, as all the questions are inside a List collection. but then I get struck on how to save the answers selected by user for each questions. From performance side its wise to send a collection back to business layer to save all the selected answers to DB rather than one at a time.
For desktop browser I displayed all the questions on single page and one submit button at the end of the page. So on there is no issue with this one. Problem arises with mobile view.
So could someone please suggest on how to achieve this.
Thanks in advance,
Sai
From performance side its wise to send a collection back to business layer to save all the selected answers to DB rather than one at a time. - i dont think it would be much of a performance issue.
still.there are multiple options for the work you wanna do.
Use cookies as the storage mechanism - this way answers can be stored as key values pairs key being the index of the question.
this way every time you request a new question using ajax via jquery or simpel post back you can you can set cookie to the answer you have got.
save it at server side using session storage same as key value pairs.
use HTML 5 storage.
you can use this to store data at client side using jquery
I would store the questions in a database. Then each user, if the site is accessed via a mobile device (could detect via JavaScript) you would then save a field in their info (in the database) containing the index of the question that they're up to. I think this is a good idea as it would work cross device, if they start on a phone, then move to a tablet, their 'session' will still persist. Then when they're up to the next question, change the index, and query the database using the user's question index for the relevant information to produce the question.
I have a Rails Application where I want to present user with a sequence of Questions in a particular order. A user cannot proceed to the next question unless he has answered the previous one.
Here are some design issues I need help on for an efficient implementation:
To fetch a list of questions for a user I need to make an expensive
db call. Once for a new session, the list if fetched I simply want the
user to see the questions in a particular order starting from the
first question. If the user had attempted some questions in
a pervious session he will jump to the question he last left off. How
to implement it efficiently? I believe I need caching here.
On rendering the views :
How to render the view for this feature? I can have a controller with
the initial question template. When user attempts the question, should
I have question-answer options text updating with AJAX? Do I have to
use jquery for the purpose or any Rails helper could be of help here?
Any design help, rails features-gems I could make use of will be welcomed.
My answer is not specific to Ruby on Rails, but it should still work.
First I wouldn't load data that you potentially won't use in advance. If you have 10 questions, and you only show one at a time, then I would just load the first and then once the user has finished the first, go ahead and load the second. No need to load all ten because maybe the user never makes it to question 10.
Assuming the user leaves pre-maturely, you can just make an AJAX call to pick up where you left off.
I would agree that you should cache those questions though.
The steps would look like this then:
First question - loaded via AJAX. Answer and progress saved via AJAX call.
If (1), then second question loaded via AJAX. Answer and progress saved via AJAX call.
Repeat until questions done.
This way you can use user/login information to make an AJAX call to pick up where you left off. I would imagine this would make your database calls much less expensive.
I haven't even attempted this yet and am creating this question for advice really.
I have a strongly typed page which receives a form model composed of several components. It is to create a mitigating circumstance (MC) for a student at a university for my final year project. A MC can be composed of the initial problem, assessment extensions, and I use a multi select box to allow the user to select staff retrieved from the database which are able to view the MC once created.
The thing is I feel that a student could be granted many assignment extensions for one problem. I am wander if it is possible to include a button/image on the form which when clicked will create a new assessment extension object, and duplicate the form components to set the values for the object? This would all need to occur without any page refreshes.
Any advice, or links to good tutorials would be appreciated. I have so far been unable to find any suitable examples.
Thanks,
Jon
There are a number of ways to do this, but the fastest is to create a javascript handler which creates the form controls without any sort of server request, all you need to do is keep track of how many items are in your list so you can name the form controls correctly.
Start by making a button that when you click on it creates form controls. Once you get that, work on the naming.