Invalid default value for required ZonedDateTime - liquibase fails

Overview of the issue

Liquibase changelogs are failing to pass for MySql because of required ZonedDateTime fields.

error: Reason: liquibase.exception.DatabaseException: Invalid default value for 'jhi_end'

Motivation for or Use Case

Changelog fails and tables aren’t created.

Reproduce the error

1.Create a JHipster application set up to use a MySql database (not h2). 1.Using the entity generator, create an entity having a ZonedDateTime field with the validation constraint required : entity :

{
    "fluentMethods": true,
    "relationships": [],
    "fields": [
        {
            "fieldName": "end",
            "fieldType": "ZonedDateTime",
            "fieldValidateRules": [
                "required"
            ]
        }
    ],
    "changelogDate": "20171006153741",
    "dto": "no",
    "service": "no",
    "entityTableName": "lesson",
    "jpaMetamodelFiltering": false,
    "pagination": "no"
}

1. Try to build the application ./mvnw

Related issues

This is the same as #5743 except it uses the entity generator rather than the JDL.

Suggest a Fix

I guess you can make something similar as #5743 but I didn’t understand that solution. I can only say that MySql timestamp column type require an explicit default value if you set it not nullable (such as CURRENT_TIMESTAMP).

JHipster Version(s)

4.9.0

JHipster configuration

DBMS: mysql:5.7.19 docker-compose to set up the database:

version: '2'
services:
  mysql:
    image: mysql:5.7.19
    container_name: scheduler-mysql
    networks:
      default:
        ipv4_address: 10.10.10.1
    environment:
        MYSQL_ROOT_PASSWORD: password
    volumes:
        - ./persistence:/var/lib/mysql
  pma:
    image: phpmyadmin/phpmyadmin
    container_name: scheduler-pma
    links:
      - mysql:db
    networks:
      default:
        ipv4_address: 10.10.10.2
networks:
    default:
        driver: bridge
        ipam:
            driver: default
            config:
            - subnet: 10.10.10.0/24
              gateway: 10.10.10.254

application-dev.yml:

    datasource:
        type: com.zaxxer.hikari.HikariDataSource
        url: jdbc:mysql://10.10.10.1:3306/scheduler?useUnicode=true&characterEncoding=utf8&useSSL=false
        username: root
        password: password
        hikari:
            data-source-properties:
                cachePrepStmts: true
                prepStmtCacheSize: 250
                prepStmtCacheSqlLimit: 2048
                useServerPrepStmts: true
    jpa:
        database-platform: org.hibernate.dialect.MySQL5InnoDBDialect
        database: MYSQL
        show-sql: true
        properties:
            hibernate.id.new_generator_mappings: true
            hibernate.cache.use_second_level_cache: true
            hibernate.cache.use_query_cache: false
            hibernate.generate_statistics: false
            hibernate.cache.region.factory_class: io.github.jhipster.config.jcache.NoDefaultJCacheRegionFactory

• Checking this box is mandatory (this is just to show you read everything)

[ruddell]

We should document the flags so that users managing their own databases can be aware of them (my fault - I forgot after that PR). Maybe on Development#using-a-database, but it also applies to prod. I could also add a “Using MySQL” page like the other databases have

[pascalgrimaud]

I take this