migrations | A command line Database migrations tool | Data Migration library
kandi X-RAY | migrations Summary
kandi X-RAY | migrations Summary
A command line Database migrations tool
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Top functions reviewed by kandi - BETA
- Executes script command
- Opens the database operation
- Returns the driver class loader
- Checks if there are any skipped migration in the list of changes
- Execute a migration
- Get property
- Generate a unique id from the given pattern
- Replaces the escaped token
- Command - line tool
- Download file from URL
- Read the wrapper URL
- Retrieves the list of migrations to be loaded
- Parse a migration from a migration script
- Get all migrations
- Parses the change definition from the file name
- Prints out to stdout
- Get the name of the operating system
- Returns a map of registered drivers
- Executes the version operation
- Reads properties from a file
- Get Reader for a migration
- Creates the down operation
- Execute the SQL hook
- Create a hook script
- Initialize templates
- Executes the given script
migrations Key Features
migrations Examples and Code Snippets
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
# this callback is used to prevent an auto-migration from being gene
def run_migrations_offline():
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a
Community Discussions
Trending Discussions on migrations
QUESTION
I have the error stated above, and here is the copy log
...ANSWER
Answered 2021-Aug-01 at 00:51You need to use the factory trait for the model to have the factory()
method available.
QUESTION
What am I trying to do?
Django does not support setting enum data type in mysql database. Using below code, I tried to set enum data type.
Error Details
_mysql.connection.query(self, query) django.db.utils.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'NOT NULL,
created_at
datetime(6) NOT NULL,user_id
bigint NOT NULL)' at line 1")
Am I missing anything?
Enumeration class with all choices
...ANSWER
Answered 2021-Sep-29 at 19:39You can print out the sql for that migration to see specifically whats wrong, but defining db_type
to return "enum"
is definitely not the right way to approach it.
QUESTION
I'm exploring a new DDD project using SQLAlchemy and Alembic for the first time. I'd like to use imperative mapping to isolate my domain objects. All the doc I can find about auto generating migrations with Alembic is using declarative mapping. Is it because I have to manually write all migrations if I want to use imperative mapping ?
...ANSWER
Answered 2022-Feb-02 at 18:03I had to import the metada of the Table
I manually defined
QUESTION
I am using MongoDB(Mongo Atlas) in my Django app. All was working fine till yesterday. But today, when I ran the server, it is showing me the following error on console
...ANSWER
Answered 2021-Oct-03 at 05:57This is because of a root CA Let’s Encrypt uses (and Mongo Atals uses Let's Encrypt) has expired on 2020-09-30 - namely the "IdentTrust DST Root CA X3" one.
The fix is to manually install in the Windows certificate store the "ISRG Root X1" and "ISRG Root X2" root certificates, and the "Let’s Encrypt R3" intermediate one - link to their official site - https://letsencrypt.org/certificates/
Copy from the comments: download the .der field from the 1st category, download, double click and follow the wizard to install it.
QUESTION
I have an app with postgres as db, sequelize, and express, and whenever it receives a db query, it just stays there forever, no logging or anything I run postgres in a container which I can connect to through GUI normally When I swapped it for sqlite, it worked perfectly the application
here is the relevant piece of code
...ANSWER
Answered 2021-Dec-12 at 05:49I think it is your "0.0.0.0:5432".
If local, it should be just "localhost:5432". If deployed server is remote, it should be a certain IP address XXX.XXX.XXX.XXX:5432. If deployed server is home network, it should be "192.168.0.XXX:5432".
Check your postgres network configuration https://youtu.be/Erqp4C3Y3Ds
QUESTION
Note: Room Auto Migration is in Beta - 2.4.0-beta02
I've deleted two columns in two different tables. And I tried repeat the @DeleteColumn
annotation, like so
ANSWER
Answered 2021-Dec-01 at 06:40Kotlin has yet to add full support for repeatable annotations with the same syntax as Java. So we'll have to use the container annotation, like this:
QUESTION
I am trying to use the new DateOnly aspects of c# but when I come to do my migrations I am having the following issue. I am using SQL Server 2019 the error is.
'Amenitie.StartDate could not be mapped because it is of type 'DateOnly', which is not a supported primitive type or a valid entity type. Either explicitly map this property, or ignore it using the'
My model is as follows
...ANSWER
Answered 2021-Sep-12 at 10:54You have two choices:
use DateTime instead of DateOnly.
build a custom converter (see below).
As far I can see, the actual version of Entity Framework Core issue tracker states that model builder does not support it (find the issue here). Building a converter may solve your issue (cited from there):
QUESTION
I'm trying to build an API with EF Core as database access, right now on dotnet 6 RC1. I want to use dotnet cli tools to manage migrations (creating, updating the database etc), but the tools do not cooperate with minimal API from the template.
Here is my Program.cs:
...ANSWER
Answered 2021-Oct-01 at 15:35I created an MinimalAPI project using EFCore Context and it runs fine no major problem ocourred, other than updating ef tools cli and so on, see the complete project:
MinimalApi.csproj
QUESTION
I have what I would consider a common use case but I am really struggling to find a solution:
I want to reuse a variable in Kustomize
patches in our deployments. Specifically, we are using commit IDs to reference image tags (Use Case A) and k8s Jobs related to the deployments (Use Case B).
We use a setup where for each ArgoCD app we have a /base/
folder and /overlays/[environment-name]
, this base is patched with a kustomization.yaml
.
A very straightforward usage - in /overlays/[environment-name]
we have a kustomization.yaml
which uses:
ANSWER
Answered 2021-Sep-28 at 17:42but I want to reuse a variable within the manifests.
This is not how you typically work with Kustomize. Its a good thing that things are declarative and explicit when working with Kustomize.
when developers do PRs for releases, they should only touch one reference to the commit ID to prevent typos etc. (also easier to review instead of checking commit ID in N places)
yes and no.
That there is a change in four places should not be seen as a problem, in my opinion. That there is human toil to update four places is the problem.
The solution to human toil is typically automation. By using yq in an automated pipeline (e.g. Jenkins - or a shellscript) can you automate your manifest-update to take a single parameter - this can optionally be automated directly for each build after you have a git "commit id" available. The pipeline need to run four yq
-commands to update the four Yaml fields. See e.g. assign operation and github action - pipeline example. No other variables are needed.
QUESTION
I try to execute command update-database
in PMC and always get this error msg. I know theres another article basically has the same error but i tried every answer and nothing works.
ANSWER
Answered 2021-Sep-20 at 18:47Try updating EntityFramework package to the latest version. I was having the same problem with EF 6.1.3, but then updated to 6.4.4 and it worked fine on VS2022 preview.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install migrations
Unzip the distribution archive, i.e. mybatis-${project.version}-migrations.zip to the directory you wish to install MyBatis Migrations. These instructions assume you chose C:\Program Files\mybatis. The subdirectory mybatis-migrations-${project.version} will be created from the archive.
Add the MIGRATIONS_HOME environment variable by opening up the system properties (WinKey + Pause), selecting the Advanced tab, and the Environment Variables button, then adding the MIGRATIONS_HOME variable in the user variables with the value C:\Program Files\mybatis\mybatis-migrations-${project.version}. Be sure to omit any quotation marks around the path even if it contains spaces.
In the same dialog, add the MIGRATIONS environment variable in the user variables with the value %MIGRATIONS_HOME%\bin.
In the same dialog, update/create the Path environment variable in the user variables and prepend the value %MIGRATIONS% to add MyBatis Migrations available in the command line.
After that read the ./drivers and ./environments section of [Migrations init](http://mybatis.github.io/migrations/init.html).
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