sourcerer | storage agnostic framework for implementing a CQRS | Microservice library
kandi X-RAY | sourcerer Summary
kandi X-RAY | sourcerer Summary
Sourcerer is an opinionated, functional, and storage agnostic framework for implementing a CQRS architecture in Java 8 using event sourcing.
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Top functions reviewed by kandi - BETA
- Run the subscription
- Attempts to process the given updates
- Gets a batch of updates from the given queue
- Run one session
- Runs the operation on the aggregate
- Validates and parses the aggregated version
- Merge two versions
- Updates the expected version of an aggregate
- Appends the given events to the given stream
- Converts the given version to the expected revision
- Completes the future
- Append events to the given stream
- Returns the expected version of the expected version
- Completes write future
- Handles a subscription update
- Tries to offer an update
- Loads events for the given aggregate
- Saves an aggregate
- Returns a publisher for all events in the given stream
- Gets a publisher for the given stream ID
- Gets a publisher for the given version
- Gets a publisher for the given stream
- Stops the subscription
- Builds a Command from an operation
sourcerer Key Features
sourcerer Examples and Code Snippets
Community Discussions
Trending Discussions on sourcerer
QUESTION
tl;dr
I'm trying to style specific lines from a textfile, and in the end being able to show it on the page in the original order.
info: My page is running Joomla with the sourcerer extension.
Sample content of the wishlist:
ANSWER
Answered 2020-Nov-16 at 23:11I'm not sure why you are moving the lines into separate arrays! Just iterate through line by line and work out what should be where!
Using preg_match
QUESTION
I use the following simple code to calculate a copper price in my website.
...ANSWER
Answered 2019-Dec-29 at 22:20The problem was that allow_url_fopen was disabled in php.ini or php73-fcgi.ini allow_url_fopen = 1 (or On)
In my server there are many files php73-fcgi.ini, php72-fcgi.ini and more... In all of them I found this allow_url_fopen and enabled it (set to 1 or On) then it worked.
Be careful because the change took 10-15 minutes in my case. I believe because of caching ..
QUESTION
I am using Docker Desktop on Windows and have created a local Kubernetes cluster. I've been following this (quick start guide) and am running into issues identifying my external IP. When creating a service I'm supposed to list the "master server's IP address".
I've identified the master node kubectl get node
:
ANSWER
Answered 2019-Oct-23 at 16:36Use the following command so you can see more information about the nodes.
QUESTION
Using Joomla version 3.7.5 with Wright template.
I have a module in the left sidebar which has 2 typeahead fields getting data from a local database. The php code is referenced using include_once via the sourcerer plugin.
The typeahead does not work when used in the module. But - if I use the exact same code in an article, the typeahead works correctly.
Do articles and modules load/behave differently? I would appreciate it if someone could explain this behaviour.
The relevant parts of the code follow.
PHP - the first lines of code are:
...ANSWER
Answered 2017-Oct-24 at 08:34Worked it out.
Joomla does not see a module as a seperate page but rather as a nested div of the main page.
Moving the following lines to the main article page on which the module displays solved the problem as the .js needs to be referenced before anything else has loaded:
Removed this from the module and included it in the article:
QUESTION
I want to use a piece of Javascript to filter tables. I tested the code without CMS and it worked perfectly. However, when I move it to Joomla te Javascript is not recognized/executed. I guess something is blocking or conflicting.
I tried adding the code with Sourcerer and also added it in a module with Flexi code. However, no effect. I read some other posts about this on Stackoverflow, but this was not relevant or no solution.
It's not a programm like RS Firewall that's blocking, and I have also checked the settings of JCE and the article options. All rights for admitting Javascript are okay.
What am I missing here? How can I get it to work?
This is the code:
...ANSWER
Answered 2017-Oct-22 at 08:32The answer is petty simple. You included the necessary code but forgot to call it. The w3c example contains an event binding which I don't see in your source code.
Example:
QUESTION
Keeping track of changes to a database must be a big concern for lots of people, but it seems that the big names have software for that.
My question is for a small SQL database with 10 tables, <10 columns each, using joins to create a "master" junction table: is there a downside to updating a few times per year by adding rows (with a lot of duplicate information) and then taking the MAX id (PK) to generate and post on a website the most recent data in tabular form (excerpted from the "master")? This versus updating the records, in which I'll lose information on the values at a particular moment.
A typical row for teacher contact information would have fName, lName, schoolName, [address & phone info]; for repertoire or audition information: year, instrument, piece, composer, publisher/edition.
Others have asked about tracking db changes, but only one recently, and not with a lot of votes/details: How to track data changes in a database table Keeping history of data revisions - best practice? How to track data changes in a database table
This lightweight solution seems promising, but I don't know if it didn't get votes because it's not helpful, or because folks just weren't interested. How to keep track of changes to data in a table?
more background if needed: I'm a music teacher (i.e. amateur programmer) maintaining a Joomla website for our organization. I'm using a Joomla plugin called Sourcerer to create dynamic content (PHP/SQL to the Joomla database) to make it easier to communicate changes (dates, personnel, rules, repertoire, etc.) For years, this was done with static pages (and paper handbooks) that took days to update.
I also, however, want to be able to look back and see the database state at a particular time: who taught where, what audition piece was listed, etc., as we could with paper versions. NOTE: I'm not tracking HTML changes, only that information fed from the database.
Thanks for any help! (I've followed SO for years, but this is my first question.)
The code I'm using now to generate the "master junction table." I would modify this to "INSERT into" for my new rows and query from it via Sourcerer to post the information online.
...ANSWER
Answered 2017-Jul-28 at 21:02To answer your questions in order:
Is there a downside?
Of course, and it's performance - related. If you add a million records each year, it will hurt performances; and occupy space on disk.
Where the suggestions in the linked question bad or just not popular?
The question and answers are good; but the right answer depends on your specific use case: are you doing it for legal reasons, how fast you want to be able to access the data, how much data and updates you have, how much you want your history functionality to last without changes... only if it met your use case you would vote.
As a rule of thumb, history should go to a different table, this would provide several advantages:
- your current tables don't change, so your code needs no change except for storing the current version also in history;
- your application doesn't slow down;
- if your history tables grow you can move them easily to a different server;
In order to choose whether to have a single history table or several (one per backed up table) depends on how you plan to retrieve the data and what you want to do with it:
if you mirror each of your tables adding a timestamp and the user id, your code would need little modifications; but you'd end up with twice as many tables, and any structure change would then need to be replicated on the history table as well;
if you build a single history table with the timestamp, the user id, the table name and a json representation of the record, you will have an easier life building it, while for retrieving it you should access the data using an Object per row i.e. using Joomla's dbo getObjectList(), then the objects will be the same format you store in the history table and the changes there will be fairly easy. But querying for changes across specific tables/fields will be much harder.
Keep in mind that having data is useless if you can't retrieve it properly.
Since you mention pushing to the website a few times a year, the overhead of the queries should not be an issue (if you update monthly, waiting 5 minutes may not be a problem).
You should seek the best solution based on the other uses of this data: for it to be useful to anyone, you will have to implement a system to retrieve historical data. If phpmyadmin is enough, well look no further.
I hope this scared you. Either way it's a lot of hard work.
If you just want to be able to look up old data, you may instead store a copy of the markup/output you generate from time to time, and save it to different folders on the webserver. This will take minutes to set up, and be extremely reliable.
Sure, it's more fun to code it. But are you really sure you need it? And you can keep the database dumps just in case one day you change your mind.
QUESTION
I am running some custom php file that contains some javascript code within a Joomla website through an extension called sourcerer. Everything works as expected from the php side of things however I am experiencing an issue with a call to another php file made from within a javascript. Here is the javascript code in question and on the second line is the "suburb.php" file that is called from within this code that is causing the issue.
...ANSWER
Answered 2017-Jun-06 at 19:20Use an absolute URL instead of of just "suburb.php" so it should be something like: http://www.[joomlasite].com/suburb.php
As for the localhost, then I would say you likely have the $live_site
set to "localhost" in your configuration.php - make sure you set the $live_site
to empty. If that's not the case, then search your database for any occurrence of localhost.
QUESTION
I am trying to have the module check a table in the database and return the higest amount in the column. (using sourcerer plugin to use php in a wysiwyg module). However I just get..nothing. No error, but no returned info either.
...ANSWER
Answered 2017-May-25 at 16:12$db = JFactory::getDbo();
$db->setQuery('SELECT MAX(Amount) AS Amount FROM #__auction');
echo $db->loadResult();
QUESTION
As a beginner in Go, I have problems understanding io.Writer
.
My target: take a struct and write it into a json file.
Approach:
- use encoding/json.Marshal
to convert my struct into bytes
- feed those bytes to an os.File
Writer
This is how I got it working:
...ANSWER
Answered 2017-May-05 at 17:12The benefit of using the second method is that if you are passing a Writer
interface, you can pass anything which implements Write
-- that is not only a file but a http.ResponseWriter
, for example, or stdout os.Stdout
, without changing the struct methods.
You can see this handy blog post on the package io walkthrough. The author makes the case that passing as parameter readers and writers makes your code more flexible, in part because so many functions use the Reader
and Writer
interface.
As you come to use Go more, you'll notice how much the standard library leans on Reader
and Writer
interfaces, and probably come to appreciate it :)
So this function (renamed):
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install sourcerer
You can use sourcerer like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the sourcerer component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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