model-view-controller

问题 Got a homework assignment that is giving me problems.... Its modifying a JSF project with two pages and a bean to fit MVC2 by adding two more pages and a controller servlet and another bean for the two additional pages. the new main page forwards to either the second new page or the old first page. My issue is response.getParameter() always results in null. <%@page session="false" import="java.util.Iterator"%> <%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%> <%@taglib prefix="h" uri=

问题 I'm trying to present a modal view controller after selecting a contact and it doesnt seem to be working. In my - (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person method, I dismiss peoplePicker, create an instance of my new view controller, then present it with [self.navigationController presentModalViewController:newController animated:YES]; and it doesnt work. However if i PUSH the view

问题 I am going to built the custom library. I want to pass string from view to library and process and then return to same view after. My code looks like: application/libraries/MultiImageParser.php <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); //return profile pic of img arrays. class MultiImageParser { function parser($multiImage) { //get $prods->images here as parameter $images = $multiImage; //gets multiple image from controller like 1.jpg,2.jpg,3.jpg $pieces =

问题 I have searched a little around the internet looking for what might be a simple question. When using the MVC style of programming, where should a HTTP redirect be performed? Some say its a job for the controller layer and others say it is a job for the view layer. From my current understanding of MVC it would be the controller as it coordinates the business logic. But I understand those who claim it would be the view layer with the argument that a redirect changes the visual presentation a

问题 I am currently working with Symfony2's Part 4 OF The SymBlog project I am getting this ERROR message: Undefined method 'getLatestPosts'. The method name must start with either findBy or findOneBy!500 Internal Server Error - BadMethodCallException This is my PostRepository Class: <?php namespace BLog\BlogBundle\Entity; use Doctrine\ORM\EntityRepository; class PostRepository extends EntityRepository { public function getLatestPosts($limit = null) { $qp = $this->createQueryBuilder('p') ->select(

问题 I am currently working with Symfony2's Part 4 OF The SymBlog project I am getting this ERROR message: Undefined method 'getLatestPosts'. The method name must start with either findBy or findOneBy!500 Internal Server Error - BadMethodCallException This is my PostRepository Class: <?php namespace BLog\BlogBundle\Entity; use Doctrine\ORM\EntityRepository; class PostRepository extends EntityRepository { public function getLatestPosts($limit = null) { $qp = $this->createQueryBuilder('p') ->select(

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I want to add paging to my Views. I looked into the PagedList (Nuget package) and it's really nice. The problem I have with it, is that it needs to pull in all the records from the database. As you can see, it would not be very efficient if there are millions of rows. Are there any Nuget Paging packages that don

问题 Currently, this is my main screen: ( ) I have 2 files: “patient.txt” and “treatment.txt” which hold records of multiple patients and treatments. What I’m trying to do is to display all of those records in a nice JTable whenever I click “Display Treatments” or “Display Patients”, in a screen like so: I am using an MVC model for this Hospital Management System (with HMSGUIModel.java, HMSGUIView.java, HMSGUIController.java, HMSGUIInterface.java files), and add records using the following code:

问题 How can we call something like this <%= habit.current_level.missed_days %> where we only call the missed_days from the current_level , instead of all the missed_days in a habit (to just give an general idea of what we want). For example if two boxes are checked, calling <%= habit.missed_days %> in the habits index will show 2 and if eight boxes are checked it will show 8 , but the goal here is that even if 8 boxes are checked: it will still only say 2 strikes in the index because we are

问题 In my model i have a HttpPostedFileBase property as File. In the view I have a textbox "A" and a button "B". I also have a hidden input type="file" id ="file "on my page. On B click i trigger the #file.click in my javascript. The selected file should then bind to the model property and the file name should be displayed on the textbox. I am unable to do this. Any help? I hope the question is clear, if not please tell me so that i can elaborate further. Any help? Edit 1: Model: public class