logo
down
shadow

Updating one object with another


Updating one object with another

By : user2952038
Date : November 18 2020, 03:49 PM
this one helps. It's quite simple, you just need to iterate over one object and copy its properties/values into the other object:
code :
for (key in child) master[key] = child[key];


Share : facebook icon twitter icon
How to avoid updating the child object while updating parent in hibernate?

How to avoid updating the child object while updating parent in hibernate?


By : Mahak
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Try to set in your one-to-many side of relationship parameter inverse="true". This will tell hiberante not to update relationship (FK column) when you are updating parent.
I mean next:
code :
<set name="lstViewPlanningItem"  cascade="none"  inverse="true">
         <key column="PLANNING_IRC" />
         <one-to-many not-found="ignore"
                class="com.cotyww.ipmasterdata.core.entity.master.ViewPlannigItem" />
         <filter name="planningsalesORg"
                condition="SALES_ORG_ID = :salesOrgId" />
</set>
Hibernate not updating child object while updating parent object

Hibernate not updating child object while updating parent object


By : David Ferrer
Date : March 29 2020, 07:55 AM
To fix this issue I would probably just write a DAO method moveAllChildren(String srcName, String dstName), like this:
code :
public class ParentDAO {
    @PersistenceContext
    private EntityManager em;

    public Parent findParentByName(name) {
      TypedQuery<Parent> q = em.createQuery("select p from Parent where p.name = :name", Parent.class);
      return q.setParameter("name", name).getSingleResult();
    }

    public void moveAllChildren(String srcName, String dstName) {
      Parent src = findParentByName(srcName);
      Parent dst = findParentByName(dstName);
      Set<Child> children = new HashSet<Child>();
      for (Child c: src.getChildren()) {
        children.add(c);
      }
      src.getChildren().removeAll(children);
      dst.getChildren().addAll(children);
    }
}
Entity framework - Updating list when updating object

Entity framework - Updating list when updating object


By : Yu CJ
Date : March 29 2020, 07:55 AM
To fix this issue With EF it's pretty elaborate to delete child collection elements. When you clear the collection or remove items from it, EF plays safe and does not assume you want to delete the objects, but only want to break the association.
So you have to remove the child items explicitly:
code :
db.TimeSlots.RemoveRange(business.OpeningHours);
db.SaveChanges();
What is the difference between updating an object with a new object against updating its properties?

What is the difference between updating an object with a new object against updating its properties?


By : Njabulo
Date : March 29 2020, 07:55 AM
I hope this helps . It depends on what the object semantically means in the system. Without knowing that, there is no approach more correct than the other.
If the object is simply a data structure and it nothing more than the collection of its values, there is no difference. In fact, in some cases you might even make simple data structures immutable so that they can only be replaced with new instances and not directly modified.
code :
var x = new MyClass(1);
var y = x;

// later
x.Update(2);
var x = new MyClass(1);
var y = x;

// later
x = new MyClass(2);
while updating property for 1 object its updating properties for rest of the same objects in list

while updating property for 1 object its updating properties for rest of the same objects in list


By : LEi DG
Date : March 29 2020, 07:55 AM
To fix the issue you can do This is because you created a single object, and kept adding it to your list in a loop.
Your dictionary d1 contains only one object - the object added here:
code :
d1.Add(1, new Employee { Name="Amol" });           
for(int i=0;i<2;i++) {
    lstEmps.Add(new Employee {
        Name = d1[1]
    ,   ReqId = i
    });
}
Related Posts Related Posts :
  • How to change add and remove active class in JavaScript
  • how to toggle a specific div in javascript
  • How to get all the values from multiple keys of an array of object?
  • jQuery bind() unbind() and on() and off()
  • regular expression to find DD Month YYYY from a string
  • How to upload files from web client (HTML/jQuery form) to your Dropbox folder
  • Backbone history and require.js issue
  • Confusion over Classical and Prototypal Inheritance Javascript
  • How to take screen shot of current webpage using Javascript/JQuery?
  • Store meridiem in a variable
  • class declared inside closure vs standard class without closure
  • javascript confirm box always return true
  • dynamically changing the size of font size based on text length using css and html
  • Node.js - Getting the host IP address while on Amazon EC2
  • Confusing CSS, can anyone explain please
  • How to install v8-profiler on Windows 8 (64 bit) using npm?
  • Resolve promise based on another promise
  • google maps adding overlay layer above UI and markers
  • Style specific letter?
  • RangeError: Maximum call stack size exceeded with array.slice
  • node rest client get with local variable
  • If condition not executes while mouse move fastly
  • Count the number of displayed elements in a HTML list
  • Locate JavaScript source code in Emacs
  • Clean, Modular Code vs MV* Frameworks
  • infinite scroll without loading image
  • Backbone: reverse collection order with comparator
  • What do printers ignore?
  • jQuery UI .tabs() Contentless tab?
  • Execute Javascript alert() after page (visually) loaded
  • JavaScript - duplicating array doesn't work
  • Excessive clickable area below image
  • JavaScript Regex: Replace |b| with <b>
  • Unexpected value change in 2D array in JavaScript
  • Function doesnt see parameter as a array of objects
  • jQuery fetch keypress event on chrome and IE
  • How to enable jquery validate localization?
  • Cassandra map collection returned by node.js Helenus looks odd
  • angular ng-repeat with multiple filter options
  • Selecting Children without ID or Class names
  • How to uncheck a group of checkboxes when another checkbox is checked
  • Is hiding content by Javascript or jQuery Worth trying
  • Load XUL resource using javascript
  • XML to HTML text area from server file system
  • set focus() on textbox on form onload
  • es lint '' is assigned a value but never used' eventhough i have used it
  • Can "name" attribute be used for custom VueJS components
  • Get innerHTML of content when it is clicked
  • HTTPS causes CSS animations to not load? Very confused
  • How to hide other div apart from touched div to the band
  • Is global variable assignment atomic on NodeJS?
  • Datepicker onchangemonthyear beforeshowday
  • trying to render html files using jade but it still adresses it as a jade
  • Google Analytics - Understanding and Dissecting the Snippet: What is | | [ ];
  • Replacing "[aA09.b]." to "[aA09.b]\n" in in JavaScript
  • Why wrap a function definition in an immediate function?
  • Enable / disable jQuery script on switching to different tab in a HTML page
  • how can find return variable value outside anonymous function in node js mysql query function
  • Converting 1 to 0001 in javascript array
  • svg viewbox should not resize the text fontSize?
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org