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Create Django model or update if exists
...large collection it won't scale well. update_or_create always first runs a SELECT and thereafter an UPDATE.
for the_bar in bars:
updated_rows = SomeModel.objects.filter(bar=the_bar).update(foo=100)
if not updated_rows:
# if not exists, create new
SomeModel.object...
Facebook Post Link Image
...og:title - The title of the entity.
og:type - The type of entity. You must select a type from the list of Open Graph types.
og:image - The URL to an image that represents the entity. Images must be at least 50 pixels by 50 pixels. Square images work best, but you are allowed to use images up to thre...
c# open file with default application and parameters
... + Click on project
Add New Item
Under Visual C# Items -> General
Select Settings File
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How do I ignore files in Subversion?
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If you are using TortoiseSVN, right-click on a file and then select TortoiseSVN / Add to ignore list. This will add the file/wildcard to the svn:ignore property.
svn:ignore will be checked when you are checking in files, and matching files will be ignored. I have the following ignore ...
MVC Vs n-tier architecture
...esn't make sense to use the Controller for updates and inserts but not for selects and filters, and I don't see the point of separation of concerns only to bind the view to the model anyway! Conclusion - MVC is another one of those obfuscations created by .... have a guess. I don't recall 3-tier eve...
Check if a user has scrolled to the bottom
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how can i select particular div id instead of the whole window?
– James Smith
Mar 23 '15 at 3:28
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Get name of currently executing test in JUnit 4
... if you don't want to remember it every time. This, of course, limits your selection of runners but that may be acceptable.
Also, it may take a little bit of kung fu to get the current test name out of the Runner and into your framework, but this at least gets you the name.
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Eclipse cannot load SWT libraries
...config java
This brings up a list of the different types of Java. Simply select the Open JDK.
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Building with Lombok's @Slf4j and Intellij: Cannot find symbol log
...his error after using IntelliJ to create a Spring Boot project with Lombok selected; it included the compileOnly, and annotationProcessor lines, but not the test* lines.
– Xenson
Aug 13 '19 at 23:12
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Why would $_FILES be empty when uploading files to PHP?
...rm action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
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