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The same uuid is generated for different objects in Django

When I run a server on localhost I am able to add new objects in my postgre database through the Django admin panel, but only one for every table. When I try to add a second new object, it assigns the same UUID that has already been used. There is an example of model with UUID as primary key:

models.py

from django.db import models
from authuser.models import User
from django.utils import timezone
import uuid

class Thread(models.Model):

    idthread = models.UUIDField(default=uuid.uuid4(), primary_key=True, unique=True)
    date_created = models.DateTimeField(default=timezone.now)
    userid = models.ForeignKey(User, on_delete=models.DO_NOTHING)
    name = models.CharField()

    def __str__(self):
        return self.name

Only after restarting the server will assign a new unique UUID to objects that I would like to add.

Caused by: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "uuid", (class *.CustomerDto), not marked as ignorable

Migrating to Spring boot 3 I am stuck with this error on my automated integration tests, full stack trace below. I did a couple things related that might have to do with the problem:

  • Jackson-databind was throwing some problems (NoClassDefFound javax/xml/bind/annotation/XmlElement) so I updated it to the latest version and added dependency to some jakarta.xml.bind-api success.
  • The tests have not been modified, pretty much it consumes one of my endpoints succesfully but then fails mapping the result back in the test.
  • I tried: mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false); but no luck there.

Stack trace:

java.lang.RuntimeException: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "uuid" (class *.CustomerDto), not marked as ignorable (42 known properties: ..., "providerId", ...])
 at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 1, column: 10] (through reference chain: *.CustomerDto["uuid"])
 at io.restassured.internal.path.json.mapping.JsonPathJackson2ObjectDeserializer.deserialize(JsonPathJackson2ObjectDeserializer.java:30)
    at io.restassured.path.json.mapping.JsonPathObjectDeserializer$deserialize.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:139)
    at io.restassured.internal.mapping.Jackson2Mapper.deserialize(Jackson2Mapper.groovy:58)
    at io.restassured.mapper.ObjectMapper$deserialize.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:139)
    at io.restassured.internal.mapping.ObjectMapping.parseWithJackson2(ObjectMapping.groovy:254)
    at io.restassured.internal.mapping.ObjectMapping$parseWithJackson2$0.callStatic(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:53)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:217)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:240)
    at io.restassured.internal.mapping.ObjectMapping.deserialize(ObjectMapping.groovy:56)
    at io.restassured.internal.mapping.ObjectMapping$deserialize.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at io.restassured.internal.RestAssuredResponseOptionsGroovyImpl.as(RestAssuredResponseOptionsGroovyImpl.groovy:229)
    at io.restassured.internal.RestAssuredResponseOptionsImpl.as(RestAssuredResponseOptionsImpl.java:169)
    at *.RestUtils.post(RestUtils.java:65)
    at *.InstallationControllerIntegrationTest.setUp(InstallationControllerIntegrationTest.java:95)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)
    at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
    at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
    at org.junit.jupiter.engine.extension.TimeoutExtension.interceptLifecycleMethod(TimeoutExtension.java:128)
    at org.junit.jupiter.engine.extension.TimeoutExtension.interceptBeforeEachMethod(TimeoutExtension.java:78)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
    at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
    at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeMethodInExtensionContext(ClassBasedTestDescriptor.java:520)
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$synthesizeBeforeEachMethodAdapter$23(ClassBasedTestDescriptor.java:505)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeEachMethods$3(TestMethodTestDescriptor.java:174)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeBeforeMethodsOrCallbacksUntilExceptionOccurs$6(TestMethodTestDescriptor.java:202)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeMethodsOrCallbacksUntilExceptionOccurs(TestMethodTestDescriptor.java:202)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeBeforeEachMethods(TestMethodTestDescriptor.java:171)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:134)
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

Actual code:

    ...
            customerId = restUtils
                    .post(customersUrl, customer, CustomerDto.class)
                    .getId();
    ...

    <T> T post(String url, Object dto, Class<T> type) {
        try {
            return RestAssured
                    .given()
                    .contentType(JSON)
                    .body(mapper.writeValueAsString(dto))
                    .when()
                    .post(url)
                    .as(type);
        } catch (JsonProcessingException e) {
            fail(e);
            return null;
        }
    }

    @Data
    @AllArgsConstructor
    @Builder
    @NoArgsConstructor
    public class CustomerDto {
        private String id;
    ...
        private UUID providerId;
    
    ...
    
    }

PD; some values have been masked

How to get a unique device ID in Swift?

How can I get a device's unique ID in Swift?

I need an ID to use in the database and as the API-key for my web service in my social app. Something to keep track of this devices daily use and limit its queries to the database.

Two auto generated IDs in Spring single entity

I need to generate two IDs (column values) in Spring with Annotations. What would be the solutions if I need 2 IDs auto generated with annotations, ID and UUID, I would use UUID generated with the following:

@Id 
@GeneratedValue(generator = "uuid")
@GenericGenerator(name = "uuid", strategy = "uuid2")
@Column(name = "uuid", unique = true)
private String uuid;

but I would not be able to use the @Id annotation at the same time and can not auto generate the ID (second generated field)

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private long id;

What would be the best solution to auto generate two columns ID and UUID, since with only one @Id only one is created and the other is null? I need some solution with Hibernate, not programatically generating one of them.

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