data | Data modeling and relation library | Database library
kandi X-RAY | data Summary
kandi X-RAY | data Summary
With this library, you're modeling data using the factory function. That function accepts an object where each key represents a model name and the values are model definitions. A model definition is an object where the keys represent model properties and the values are value getters. See the Recipes for more guidelines on data modeling. Throughout this document native JavaScript constructors (i.e. String, Number) will be used as values getters for the models, as they both create a value and define its type. In practice, you may consider using value generators or tools like faker for value getters. Each model must have a primary key. That is a root-level property representing the model's identity. Think of it as an "id" column for a particular table in a database.
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QUESTION
I'm creating a program to analyze security camera streams and got stuck on the very first line. At the moment my .js file has nothing but the import of node-fetch and it gives me an error message. What am I doing wrong?
Running Ubuntu 20.04.2 LTS in Windows Subsystem for Linux.
Node version:
...ANSWER
Answered 2022-Feb-25 at 00:00Use ESM syntax, also use one of these methods before running the file.
- specify
"type":"module"
inpackage.json
- Or use this flag
--input-type=module
when running the file - Or use
.mjs
file extension
QUESTION
I have a project which was running well yesterday, but today I find this problem:
Could not resolve all files for configuration ':app:debugRuntimeClasspath'. Could not resolve com.google.android.gms:play-services-location:16.+. Required by: project :app > project :location > Failed to list versions for com.google.android.gms:play-services-location. > Unable to load Maven meta-data from https://google.bintray.com/exoplayer/com/google/android/gms/play-services-location/maven-metadata.xml. > Could not get resource 'https://google.bintray.com/exoplayer/com/google/android/gms/play-services-location/maven-metadata.xml'. > Could not GET 'https://google.bintray.com/exoplayer/com/google/android/gms/play-services-location/maven-metadata.xml'. Received status code 502 from server: Bad Gateway
acutely I'm using classpath 'com.android.tools.build:gradle:4.1.0'
with distributionUrl=https://services.gradle.org/distributions/gradle-6.5-bin.zip
I have followed this question
and I upgraded 'com.android.tools.build:gradle:4.1.0'
to classpath 'com.android.tools.build:gradle:4.2.0'
then I changed distributionUrl=https://services.gradle.org/distributions/gradle-6.5-bin.zip
to distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
but I still got the error.
my android/build.gradle:
...ANSWER
Answered 2021-Dec-01 at 09:09It looks like a temporary issue, the server with these libraries is down. I have the same problem now with Room:
QUESTION
I have been using github actions for quite sometime but today my deployments started failing. Below is the error from github action logs
...ANSWER
Answered 2022-Mar-16 at 07:01First, this error message is indeed expected on Jan. 11th, 2022.
See "Improving Git protocol security on GitHub".
January 11, 2022 Final brownout.
This is the full brownout period where we’ll temporarily stop accepting the deprecated key and signature types, ciphers, and MACs, and the unencrypted Git protocol.
This will help clients discover any lingering use of older keys or old URLs.
Second, check your package.json
dependencies for any git://
URL, as in this example, fixed in this PR.
As noted by Jörg W Mittag:
For GitHub Actions:There was a 4-month warning.
The entire Internet has been moving away from unauthenticated, unencrypted protocols for a decade, it's not like this is a huge surprise.Personally, I consider it less an "issue" and more "detecting unmaintained dependencies".
Plus, this is still only the brownout period, so the protocol will only be disabled for a short period of time, allowing developers to discover the problem.
The permanent shutdown is not until March 15th.
As in actions/checkout issue 14, you can add as a first step:
QUESTION
After upgrading to android 12, the application is not compiling. It shows
"Manifest merger failed with multiple errors, see logs"
Error showing in Merged manifest:
Merging Errors: Error: android:exported needs to be explicitly specified for . Apps targeting Android 12 and higher are required to specify an explicit value for
android:exported
when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details. main manifest (this file)
I have set all the activity with android:exported="false"
. But it is still showing this issue.
My manifest file:
...ANSWER
Answered 2021-Aug-04 at 09:18I'm not sure what you're using to code, but in order to set it in Android Studio, open the manifest of your project and under the "activity" section, put android:exported="true"(or false if that is what you prefer). I have attached an example.
QUESTION
Just today, whenever I run terraform apply
, I see an error something like this: Can't configure a value for "lifecycle_rule": its value will be decided automatically based on the result of applying this configuration.
It was working yesterday.
Following is the command I run: terraform init && terraform apply
Following is the list of initialized provider plugins:
...ANSWER
Answered 2022-Feb-15 at 13:49Terraform AWS Provider is upgraded to version 4.0.0 which is published on 10 February 2022.
Major changes in the release include:
- Version 4.0.0 of the AWS Provider introduces significant changes to the aws_s3_bucket resource.
- Version 4.0.0 of the AWS Provider will be the last major version to support EC2-Classic resources as AWS plans to fully retire EC2-Classic Networking. See the AWS News Blog for additional details.
- Version 4.0.0 and 4.x.x versions of the AWS Provider will be the last versions compatible with Terraform 0.12-0.15.
The reason for this change by Terraform is as follows: To help distribute the management of S3 bucket settings via independent resources, various arguments and attributes in the aws_s3_bucket
resource have become read-only. Configurations dependent on these arguments should be updated to use the corresponding aws_s3_bucket_*
resource. Once updated, new aws_s3_bucket_*
resources should be imported into Terraform state.
So, I updated my code accordingly by following the guide here: Terraform AWS Provider Version 4 Upgrade Guide | S3 Bucket Refactor
The new working code looks like this:
QUESTION
I am reading this book by Fedor Pikus and he has some very very interesting examples which for me were a surprise.
Particularly this benchmark caught me, where the only difference is that in one of them we use || in if and in another we use |.
ANSWER
Answered 2022-Feb-08 at 19:57Code readability, short-circuiting and it is not guaranteed that Ord will always outperform a ||
operand.
Computer systems are more complicated than expected, even though they are man-made.
There was a case where a for loop with a much more complicated condition ran faster on an IBM. The CPU didn't cool and thus instructions were executed faster, that was a possible reason. What I am trying to say, focus on other areas to improve code than fighting small-cases which will differ depending on the CPU and the boolean evaluation (compiler optimizations).
QUESTION
I'm trying to make a Discord bot that just says if someone is online on the game.
However I keep getting this message:
[ERR_REQUIRE_ESM]: require() of ES Module from not supported. Instead change the require of index.js in... to a dynamic import() which is available in all CommonJS modules.
This is my code:
...ANSWER
Answered 2021-Sep-07 at 06:38node-fetch
v3 recently stopped support for the require
way of importing it in favor of ES Modules. You'll need to use ESM imports now, like:
QUESTION
This is a React web app. When I run
...ANSWER
Answered 2021-Nov-13 at 18:36I am also stuck with the same problem because I installed the latest version of Node.js (v17.0.1).
Just go for node.js v14.18.1
and remove the latest version just use the stable version v14.18.1
QUESTION
After updating Xcode to version 13.2 i can't build my project anymore. I have a strange error "Internal error: missingPackageDescriptionModule" related to my Workspace file.
It's definitely related to SPM because Xcode is not loading SPM packages also. I tried to "Reset package caches", "Resolve package caches" and also "Updating to latest package caches" but after all of these operating nothing happens. Deleting derived data, cleaning didn't help too...
I tried also to resolve packages from Terminal using xcodebuild -resolvePackageDependencies
but I get error message:
ANSWER
Answered 2021-Dec-17 at 20:37Apple is aware of the issue.
We're currently investigating this issue — thank you to those who have filed bug reports so far. To workaround this issue, please re-download Xcode 13.2 directly from the Downloads page.
https://developer.apple.com/forums/thread/696504?answerId=698142022#698142022
QUESTION
I'm studying for the final exam for my introduction to C++ class. Our professor gave us this problem for practice:
...Explain why the code produces the following output:
120 200 16 0
ANSWER
Answered 2021-Dec-13 at 20:55It does not default to zero. The sample answer is wrong. Undefined behaviour is undefined; the value may be 0, it may be 100. Accessing it may cause a seg fault, or cause your computer to be formatted.
As to why it's not an error, it's because C++ is not required to do bounds checking on arrays. You could use a vector and use the at
function, which throws exceptions if you go outside the bounds, but arrays do not.
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