Current Slick Examples Scala You Must Know

Sunday 17 July 2022

One of the benefits of Slick a domain-specific language for accessing database contents in Scala is the fact that its framework agnostic. User and TableQuerys so that you can write type-safe SQL queries.

Cockroachdb Scala Client With Slick By L Eranga Rahasak Labs Apr 2022 Medium

Slick querying capabilities are really very powerful expressive and readable.

Slick examples scala. Your Scala application will have two entities the user and the comment with the one-to-many relation. 18 Jun 2015 Source. Example app using scala Play Framework and Slick Play Scala Backbone Todo 58 Built on Play Framework Slick Backbone Webjars RequireJS CoffeeScript and Dustjs using the H2 in-memory database.

The Slick TestKit Example template shows you how to use Slick TestKit to test your own Slick drivers. I t was more than 3 years ago that I struggled to find a tutorial for integrating the Play Framework with Slick. Example Play Scala project with Slick.

This module tries to provide an easy way to integrate Play and Slick but while I was looking for some minimal example I noticed that there was missing some updated example which used Play 24 and Slick 310. Scala classes Slick lets you define case classes eg. ZIOs blocking thread pool is unbounded while Slick takes a more nuanced approach to its database thread pool.

Package modelsdatabase import playapidbslickConfigdriversimple_ class Cocktails extends TableLong StringCOCKTAIL def id columnLongID def name. We have just looked at a couple of typical examples but please glance through official documentation to find much more. ZIOs approach is different from Slicks.

Play Framework - the most adopted MVC framework in the scala ecosystem. It has 9 stars with 2 forks. It had no major release in the last 12 months.

It has a neutral sentiment in the developer community. The following example show the use of a Slick Sink to take a stream of elements and insert them into the database. Documentation and download are available to configure compose and query databases without SQL.

A user can have many comments and a single comment will belong to only one user. Starting with Slick 21 the separate example projects like this one have been replaced by Activator templates. The classes defined here represent the database tables and their columns and they enable constructing queries using for comprehensions and other methods familiar from working with Scala collections.

Here are the closest examples Ive found. It has two methods getDb and getDal. For example let us.

List Int List 1 2 3 4 5. It has a neutral sentiment in the developer community. Simple Pagination Example with Slick.

The unit tests for the slick connector have example of performing parallel inserts. Playevolutionsdbdefaultenabled true slickdbsdefaultprofile slickjdbcMySQLProfile slickdbsdefaultdbdataSourceClass slickjdbcDatabaseUrlDataSource slickdbsdefaultdriver slickdriverMySQLDriver slickdbsdefaultdbpropertiesurljdbcmysql1270018889play101serverTimezoneUTC. Lets say that our task is to get a list of comments that were published by a user.

Some general differences between Slick 2x and 3x. The Slick Scala Sample Code by Slick demonstrates how to access the API to integrate database features into web services. Import slickdbioEffectWrite import slickliftedCanBeQueryCondition Rep Tag import slickjdbcPostgresProfileapi_ import slicksqlFixedSqlAction import scalaconcurrentFuture import scalareflect_ trait BaseEntity val id.

Please see the Getting Started chapter in the Slick. Adding Pagination to a Scala Slick project. What you see above is an example of Slicks Lifted Embedding which is a DSL for producing queries in a type safe manner.

At the time I decided to write the most comprehensive tutorial I could make on how to create a full app with persistent storage using. Lets put this into an example say you have a list and you can apply map to generate a list of list as shown below. A lot has changed in Slick 3x in comparison with 2x.

There is an optional parallelism argument to specify how many concurrent streams will be sent to the database. There are more Slick templates created by the community as well as versions of our own templates for other Slick releases. Well start with a simple example of pagination with Slick.

You can find all Slick templates on the Typesafe web site. This is my DAOscala file. It has 31 stars with 7 forks.

This commit does not belong to any branch on this repository and may belong to a fork outside of the repository. An example which combines Play 24. Updates in Slick are represented as a combination of a query which basically outlines what should be updated and essentially the update itself.

SlickdbdriverscalaslickdriverH2Driver Then I created a trait that would import this driver from the conf and create the database to do the queries and the dal with the corresponding profile. Slick 3 Reference and Examples Last updated. GitHub - playframeworkplay-scala-slick-example.

Slick - the standard database access. Add appmodelsdatabaseCocktailsscala to your application with the play-slick import to use the driver specified by the application configuration and the table definition. Create a directory called slick_example somewhere you have writing access to Now create these directories and empty files under the directory you just created so that it looks like this.

Slick_example - src - scala -Mainscala -buildsbt. This means that we can write our API in anything wed like but for this example well use the Play framework. Play-slick-examples has a low active ecosystem.

Ultimately it might be best to leave it as is Slick will take care of its operations. Scala val examplelist List 1 2 3 4 5 examplelist. Play Slick samples that are pretty hard to reuse due to the complex sbt setup.

Slick-examples has a low active ecosystem. Boolean abstract class BaseTableE. It had no major release in the last 12 months.

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