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Is the code to update only modified fields good?
I’m working on a website on ASP.NET MVC4 and EF5. I want to ensure that only modified values are updated in the database. I’m using a unit of work pattern and repositories for data work. Here’s the code for a generic repository. I’ve two questions, and need a code review for the following code. Is the code to update only modified fields good?
How to detect which field has changed in an update trigger?
Here is the sample code: trigger UpdateTriggerSample_tgr on Lead (after update) { Lead NewLead = trigger.new [0]; Lead OldLead = trigger.old [0]; Lead LeadObject = new Lead (); // This takes all available fields from the required object.
When does the beforeupdate event occur in an option group?
This event does not apply to option buttons, check boxes, or toggle buttons in an option group. It applies only to the option group itself. The BeforeUpdate event is triggered when a control or record is updated. Within a record, changed data in each control is updated when the control loses the focus or when the user presses Enter or Tab.
When do you call savechanges do you worry about concurrent users?
I am just learning EF but I would worry about concurrent users with your update. When you call SaveChanges it would be best if EF will only update the fields that are changed to minimize the chance for collisions or overwriting the changes of a concurrent user. Thanks for contributing an answer to Code Review Stack Exchange!
How to update a website ( just changed files )?
I use FileZilla for my FTP tool and there is an option to only upload the changed files. So after you use visual studio to publish your website, you can grab the entire contents of that directory and drag it over to the FTP server location and only update what has changed.
How to change the time in a file?
Select all files, and click Change Time/Attributes from the Action menu. You may want to uncheck the Time is specified in GMT first, as most of us prefer inputting the local time rather than the GMT. Input the Created, Modified, or Accessed date/time. To fill up the current time in all the fields, click on the Fill Current Time button below.
How to change the creation date of a file?
Using PowerShell To change the file date using PowerShell, here are the commands you need to run: Change the creation date/timestamp of a file named log1.txt: (Get-Item “D:Testlog1.txt”).CreationTime= (“3 August 2019 17:00:00”)
How to update the value of a field?
Updates the value of a specific field. $selector (string) (Required) The field name or field key. $value (mixed) (Required) The new value.
In this tutorial you’ll update related data. For most relationships, this can be done by updating either foreign key fields or navigation properties. For many-to-many relationships, the Entity Framework doesn’t expose the join table directly, so you add and remove entities to and from the appropriate navigation properties.
How to update the post ID in ACF?
$post_id (mixed) (Optional) The post ID where the value is saved. Defaults to the current post. (bool) True on successful update, false on failure. This example shows how to update the value of a field called ‘views’ on the current post being viewed.