teleren/devto huggingface dataset:
Unlocking the Power of Object-Oriented Analysis and Design: Building Better Software for the Future
Tags: webdev, programming, beginners, react
Published: 2023-04-13 08:29:30

# intro

Object-Oriented Analysis and Design (OOAD) is a software engineering approach that involves breaking down a software system into its component parts or objects and then designing and developing those objects in a way that is modular, extensible, and reusable.

> ## Follow Me and subscribe to the Newsletter
> 
> ### [Twitter](https://twitter.com/ahmed_onour)

## Why I should care as a developer about it?

As a developer, you should care about OOAD because it provides a framework for building software that is more maintainable, flexible, and scalable. By focusing on the design of objects and their relationships, OOAD helps to ensure that code is organized, easy to understand, and easy to modify.

Here are some key benefits of using OOAD in your development process:

1. Modularity: OOAD allows you to break down complex systems into smaller, more manageable parts or objects. This makes it easier to develop, test, and maintain the code over time.
    
2. Reusability: Because OOAD emphasizes modular design, you can often reuse code across different projects or applications. This can save time and effort, and also improve the overall quality of your code.
    
3. Scalability: OOAD helps you to design software that is scalable, meaning it can handle increased loads or functionality without requiring major changes to the codebase.
    
4. Understandability: By using standard OOAD techniques and design patterns, you can make your code more understandable and easier to maintain for other developers.
    

## How I can make use of it?

So, how can you make use of OOAD in your development process? Here are a few tips:

1. Start with a clear understanding of the problem you are trying to solve. This will help you to identify the key objects and their relationships.
    
2. Use UML (Unified Modeling Language) to create diagrams that represent the objects and their relationships. This can help you to visualize the system and identify any potential design issues.
    
3. Follow standard design patterns and principles (such as SOLID) to ensure that your code is modular, extensible, and reusable.
    
4. Test your code thoroughly to ensure that it is functioning correctly and meeting the requirements of the system.
    

> ## Follow Me and subscribe to the Newsletter
> 
> ### [Twitter](https://twitter.com/ahmed_onour)

### Conclusion

By using OOAD in your development process, you can create software that is more modular, reusable, and scalable. This can improve the overall quality of your code, and make it easier to maintain and extend over time.
php-fpm says: Failed to open stream: Permission denied
Published: 2023-04-13 07:50:59

This is an error message I recently debugged with PHP-fpm on Apache2 and Ubuntu (other webservers will behave the same way).

`Thu Apr 13 09:23:02.625178 2023] [proxy_fcgi:error] [pid 233355] [client XXX.XXX.XXX.XXX:46074] AH01071: Got error 'PHP message: PHP Warning:  PHP Request Startup: Failed to open stream: Permission denied in Unknown on line 0; Unable to open primary script: /ZZZ/XXX/YYY/public_html/index.php (Permission denied)', referer: http://XXXXX.com/`

What does this error say?

1. Apache connected correctly to the php-fpm backend, so the issue is not to be researched at apache level
2. php-fpm correctly identified the file (/ZZZ/XXX/YYY/public_html/index.php) so both the Apache2 instructions and the pool are configured correctly
3. php-fpm could not read the file due to permissions denied

What to check:

- First, check how does the pool read the file. You can do that simply by calling `ps aux | grep php-fpm`
- Then, see if the user can effectively read the file: `sudo -u PHP_FPM_USER less /ZZZ/XXX/YYY/public_html/index.php`. If this gives a permission denied, then you need to add permissions to the file (and, possibly, add a "x" permission to the path upstream to it).
- If the php-fpm user can read the file, then something else is blocking it, and it is not system file permissions!

In Ubuntu the most probable culprit will be Apparmor. The solution is quite easy however: add your path to the allowed list of directories that php-fpm can read. You can use some magic to make this general.

Edit `/etc/apparmor.d/php-fpm` and add something like:

`  /ZZZ/*/YYY/site/** rw,`

this will, for example, allow PHP to read:

- /ZZZ/somesite/YYY/site/index.php
- /ZZZ/somesite/YYY/site/public_html/anything.php
- /ZZZ/othersite/YYY/site/public_html/hello.jpg

Then restart apparmor and it should work.
Revolutionize Your Release Management with Git-Tag-Release-Automator!
Tags: git, automation, webdev, devops
Published: 2023-04-13 07:43:49

If you are a friend of git flow and use git tagging in your release flow, I'm sure you struggle with manually determining the latest git tag and then creating a matching release branch is a tedious task. What if there was a way to automate this process to save time, effort and errors?

The "[git-tag-release-automator](https://github.com/derpixler/git-tag-release-automator)" automates exactly this process and you can concentrate on your real work. 

The "[git-tag-release-automator](https://github.com/derpixler/git-tag-release-automator)" takes care of the following steps for you:

- the last git tag is searched for. If no version tagging is used yet, the "git-tag-release-automator" sets it up for you. You have the choice if your version starts with a "v" or e.g. v1.4.5 or without.
- The "git-tag-release-automator" gives you the possibility to create a new release branch based on the last git tag, e.g. release/v1.4.0.


__Initial setup for new projects.__

```shell
❯ git-tag-release-automator
There are no existing tags. Do you want to create a tag starting with 'v'? (y/n)
Your choice: y

No "release/v1.0.0" found, create one? (y/n)
Your choice: y

Release branch "release/v1.0.0" created.
Now you can merge into "release/v1.0.0" and create tags.

```

__Create new tag but there is no matching release branch.__

```shell
❯ git-tag-release-automator
Latest tag: v1.4.1

Which part of the version do you want to increase: Major (M), minor (m) or patch (p)?
Your choice: m

No "release/v1.5.0" found, create one? (y/n)
Your choice: y

Release branch "release/v1.5.0" created.
Now you can merge into "release/v1.5.0" and create tags.

```

__Create new minor version tag.__

```shell
❯ git-tag-release-automator

Latest tag: v1.4.1

Which part of the version do you want to increase: Major (M), minor (m) or patch (p)?
Your choice: m

Git tag v1.5.0 created and pushed successfully.

```


__Create new patch version tag.__

```shell
❯ git-tag-release-automator

Latest tag: v1.5.0

Which part of the version do you want to increase: Major (M), minor (m) or patch (p)?
Your choice: p

Git tag v1.5.1 created and pushed successfully.

```

By automating this process you can save time, nerves and most of all errors and ensure that you always create a consistent git-tag and correct release-branches. You will be sure that your software always has a correct version.

Once you've set up the script, you'll find that not only is it easier to create release branches, but it also leads to a more productive workflow. You can focus on the most important aspects of your project and rely on the script to do the rest.

**Download here: **[git-tag-release-automator](https://github.com/derpixler/git-tag-release-automator)
Best Java training institute| KVCH training
Published: 2023-04-13 07:33:18

KVCH is a leading [Java training institute](https://kvch.in/best-java-training-noida), offering comprehensive courses taught by industry experts. With hands-on experience and live projects, KVCH provides a practical learning environment that prepares students for real-world [Java development](kvch.in
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/b2l8dbah1dvf21gg7bz5.jpg)).
How I update my Firefox Developer Browser a.k.a Firefox Aurora
Tags: firefoxdevbrowser, linux, codenewbie, beginners
Published: 2023-04-13 07:32:27

Are you been stuck with updating your Firefox Developer Browser/ Firefox Aurora, then you are at the right place.
Hey there, I am Gautham and We will be looking at a way on how to update Firefox Developer Browser.

I've been using Min browser for a while and I faced some bugs after Its recent updates. So I got mad with it and switched to Firefox Developer Browser a.k.a Firefox Aurora. Until now I haven't faced much of an issues. If you want to see how to install it and have a doubt on it, There is a post on it

So getting to the topic, Download the new version of Firefox Aurora. Extract the files on any location. Now open the `/opt` directory in Terminal. For that, You can just open terminal and type `cd /opt`. 

Before continuing, Please read this : We cannot remove or change files in `/opt` directory without permissions so we will be using terminal to change files. 

As we opened the `/opt` directory in terminal, We will remove the `firefox` folder. Remember to close your Firefox aurora browser. 

Now the last command : `sudo cp -rp [your_firefox_developer_updated_files_location.Inside_there_is_firefox_named_file] /opt`

This step worked for me and I believe will work for you, If you are facing any problems, Feel free to Ask.

Signing OFF - Gautham
Best Data Science Training| Data Training Certification
Published: 2023-04-13 07:27:45

Our [data science training program](https://kvch.in/best-data-science-training-noida
![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/vte3e1zahrheit549z6h.png)) is designed to provide comprehensive training to individuals looking to develop their skills in data science. Our curriculum covers topics such as data analysis, statistical modeling, machine learning, and data visualization. Our instructors are experienced data scientists who provide hands-on training using real-world datasets. Upon completion of the program, students receive a data science certification that validates their skills and knowledge. [Join us](https://kvch.in/) and take the first step towards a rewarding career in data science.
SQL Rewriter: SQL Statement Rewriting
Tags: opengauss
Published: 2023-04-13 07:11:57

**Overview**

SQL Rewriter is an SQL rewriting tool. It converts query statements into more efficient or standard forms based on preset rules to improve query efficiency.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/89uvgcvhlh1vb70j3x2q.png)

**Usage Guide**

**Prerequisites**
The database and connection are normal.

**Example**
Use the **tpcc** database as an example:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/24s5n1lsb6en6sxiskjf.png)

**queries.sql** is the SQL statement to be modified. The content is as follows:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ore5we5f5m3i5k4ufamc.png)

The result is multiple rewritten query statements, which are displayed on the screen (the statements that cannot be rewritten are displayed as null), as shown in the following.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hkj387mpy63dzgl8603p.png)

**Obtaining Help Information**
Before using the SQL Rewriter tool, run the following command to obtain help information:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/niwf3obomjh5awdc4jyt.png)

The following information is displayed:

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/l55whkzi0rboulpvj1yl.png)

Passwords are entered through pipes or in interactive mode. For password-free users, any input can pass the verification.

**Command Reference**

Table 1 Command line parameters

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/hu9tocw2wqtim7en8pzv.png)

**Troubleshooting**
**·** If the SQL statement cannot be rewritten, check whether the SQL statement complies with the rewriting rule or whether the SQL syntax is correct.
Difference between AWS VPC Peering and AWS Transit Gateway
Published: 2023-04-13 07:07:50

AWS VPC Peering and AWS Transit Gateway are two different ways to connect multiple Virtual Private Clouds (VPCs) within an AWS environment.

> VPC Peering allows you to connect two VPCs within the same AWS account or across different AWS accounts, using private IP addresses. It provides a direct network connection between the VPCs, allowing them to communicate with each other securely and efficiently. VPC peering is suitable for scenarios where you need to connect a few VPCs and have a simple network topology.


![Image Ref Link: https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRpUXcCRp-9JqJfXNvchaRkHUFog0s3p2tQnhVVhW0Vutre9wSsPigQ7-dDTciL9oaNXLs&usqp=CAU](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/81aes2f4pljz3zuifroy.png)

On the other hand,

> AWS Transit Gateway is a fully managed service that provides a centralized hub for connecting multiple VPCs and on-premises networks. It simplifies network management by allowing you to create a single transit gateway and attach multiple VPCs and VPN connections to it. This eliminates the need for creating multiple VPC peering connections, which can be difficult to manage and scale as the number of VPCs grows.


![Image Ref Link: https://static.us-east-1.prod.workshops.aws/public/c89dd1ff-56c4-4680-a374-f331a6e10c50/static/beginner/lab1/030_tgw/image42.png](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ej1k7ejdwd7x4deex0r8.png)

_In summary, AWS VPC peering is suitable for connecting a few VPCs with a simple network topology, while AWS Transit Gateway is designed for managing complex network topologies with multiple VPCs and on-premises networks._
Remote Work in Tech: Is It Right for You?
Tags: discuss, beginners, codenewbie
Published: 2023-04-13 07:00:00

Remote work opportunities allow for more flexibility, decreased distractions, and cost savings, but sometimes those advantages come at the expense of communication challenges, lack of social interaction, and difficulty disconnecting. 

For those of you who work remotely in tech: do you find that you’re working smarter or harder? What are the benefits? The challenges? And given the choice, would you ever go back to the office? 

---

Follow the [CodeNewbie Org](https://dev.to/codenewbieteam) and [#codenewbie](https://dev.to/t/codenewbie) for more awesome discussions and online camaraderie!
How can one improve their debugging and troubleshooting skills in full stack development?
Published: 2023-04-13 06:40:39

To improve debugging and troubleshooting skills in full stack development, one can practice the following techniques: [fullstack web development course](https://www.geekster.in/full-stack-web-development-program)

Using developer tools provided by web browsers for inspecting and debugging client-side code.
Logging and analyzing server-side code using console statements and debugging tools in integrated development environments (IDEs).
Understanding error messages and stack traces to identify the root cause of issues.
Debugging step-by-step and isolating problematic sections of the code.
Analyzing data flow, inputs, and outputs to identify discrepancies.
Collaborating with peers and seeking help from online communities to get fresh perspectives and solutions to issues.
Free Robux Generator - Results, Benefits, Reviews, Pros, Cons, Scam Or Legit?
Tags: webdev, javascript, beginners, programming
Published: 2023-04-13 06:43:55

just how can the thermogenic [Free Robux Generator](https://www.outlookindia.com/business-spotlight/how-to-get-free-robux-in-roblox-100-working-in-2023-without-survey-verification-news-270528) process be jumpstarted? There are certain ways it truly is activated: proper nutrition, exercise and herbal tea benefits. Researchers have agreed that green tea is effective for this purpose. But, 
[https://www.outlookindia.com/business-spotlight/how-to-get-free-robux-in-roblox-100-working-in-2023-without-survey-verification-news-270528](https://www.outlookindia.com/business-spotlight/how-to-get-free-robux-in-roblox-100-working-in-2023-without-survey-verification-news-270528)
https://infogram.com/free-robux-generator-1h8n6m3yqrp3j4x
https://fixr.co/event/free-robux-generator-results-benefits-tickets-242904323
https://lookerstudio.google.com/reporting/2f897375-fc73-4260-9b3a-7aa620372b03
AES GCM encryption performance in Go: BoringSSL FIPS vs stdlib crypto
Tags: go, performance
Published: 2023-04-13 06:40:55

---
title: AES GCM encryption performance in Go: BoringSSL FIPS vs stdlib crypto
published: true
description: 
tags: go, performance
---

https://www.druva.com/blog/overhead-boringssl-fips-mode-go
What are some common challenges faced by full stack developers and how can they be overcome?
Published: 2023-04-13 06:37:42

Common challenges faced by full stack developers include managing complex and diverse technologies, maintaining consistency across different components of a [web development full stack](https://www.geekster.in/full-stack-web-development-program), and debugging issues that arise at various levels of the stack. These challenges can be overcome by practicing good coding practices, documenting code changes, leveraging version control systems, using debugging tools, and seeking help from online communities and colleagues. Regularly reviewing and updating skills, staying organized, and being proactive in problem-solving can also mitigate challenges.
"How Does JavaScript's splice Function Really Work?"
Published: 2023-04-13 06:28:54

JavaScript splice method is used to add a new element in an array without deleting any element in it. Lets learn how splice method works behind the scene.

Theory :
Consider a Array declared as
 `let arr=[1,2,3,4,5]`

Suppose we want to add new element at index 2, that means we have change the position of element at index 2 by replacing it somewhere else and add a new value there. 

We will do so by replacing the position of last element to it's n+1 position (if there are n elements consider) which means we will replace the number 5 to a new position at index 5 (remember indexing starts from 0). Similarly we will shift the second last element to the position of last element and this process will continue until the element at position that we have to place the new number is replaced. This will create a empty space at index 2 where we will will insert our element. 

```
let data =[60,30,10,67,40];
let newEl= 70;
let position=2;
for(let i=data.length-1;i>=0;i--){
      if(i>=position){
          data[i+1]=data[i];
          if(i==position){
              data[i]=newEl;
          }
      }
}
```

Practical explanation : 
As seen from the code we have declared some variables, array, new element and position where we want to enter new element. 

Next a for loop is created which will starts from the last element. 
First the loop will changed the position of element as discussed above. 
If the the position where we want to insert element will reach, the loop does adds a new element to that position. 

Thats how the splice() method in JavaScript works behind the scenes. The code syntax may be different but logical and approach is same.
Creating an Index for an MOT Table
Tags: opengauss
Published: 2023-04-13 06:19:02

Standard PostgreSQL create and drop index statements are supported.

For example –

""
create index  text_index1 on test(x) ;
The following is a complete example of creating an index for the ORDER table in a TPC-C workload –

""
create FOREIGN table bmsql_oorder (
  o_w_id       integer      not null,
  o_d_id       integer      not null,
  o_id         integer      not null,
  o_c_id       integer not null,
  o_carrier_id integer,         
  o_ol_cnt     integer,
  o_all_local  integer,
  o_entry_d    timestamp,
  primary key (o_w_id, o_d_id, o_id)
);
 
create index  bmsql_oorder_index1 on bmsql_oorder(o_w_id, o_d_id, o_c_id, o_id) ;
 NOTE: There is no need to specify the FOREIGN keyword before the MOT table name, because it is only created for create and drop table commands.

For MOT index limitations, see the Index subsection under the _SQL Coverage and Limitations _section.
Creating/Dropping an MOT Table
Tags: opengauss
Published: 2023-04-13 06:17:28

Creating a Memory Optimized Table (MOT) is very simple. Only the create and drop table statements in MOT differ from the statements for disk-based tables in openGauss. The syntax of all other commands for SELECT, DML and DDL are the same for MOT tables as for openGauss disk-based tables.

To create an MOT table –

""
create FOREIGN table test(x int) [server mot_server];
Always use the FOREIGN keyword to refer to MOT tables.

The [server mot_server] part is optional when creating an MOT table because MOT is an integrated engine, not a separate server.

The above is an extremely simple example creating a table named test with a single integer column named x. In the next section (Creating an Index) a more realistic example is provided.

MOT tables cannot be created if incremental checkpoint is enabled in postgresql.conf. So please set enable_incremental_checkpoint to off before creating the MOT.

To drop an MOT table named test –

""
drop FOREIGN table test;
ALTER TABLE –

support includes Add column, Drop column and Rename column.

For a description of the limitations of supported features for MOT tables, such as data types, see the MOT SQL Coverage and Limitations section.
Awesome System Integration
Tags: api, rest, opensource, tooling
Published: 2023-04-13 06:05:22

Hi everyone!

I'm glad to share my open source project with you. It's called Awesome Integration, and it's a curated list of system integration software, patterns and resources. From API Design, API Documentation and API Testing tools to API Gateways and API Management, from Message Brokers to Messaging as a Service, from Integration frameworks and ESB to Integration Platform as a Service, etc.

If you're interested in contributing to Awesome Integration, I'd love to have you! You can check out our GitHub repository here: [https://github.com/stn1slv/awesome-integration#readme](https://github.com/stn1slv/awesome-integration#readme)

Let me know what you think!
Granting User Permissions
Published: 2023-04-13 06:17:01

The following describes how to assign a database user permission to access the MOT storage engine. This is performed only once per database user, and is usually done during the initial configuration phase.

 NOTE: The granting of user permissions is required because MOT is integrated into the openGauss database by using and extending the Foreign Data Wrapper (FDW) mechanism, which requires granting user access permissions.

To enable a specific user to create and access MOT tables (DDL, DML, SELECT) –

Run the following statement only once –

""
GRANT USAGE ON FOREIGN SERVER mot_server TO <user>;
All keywords are not case sensitive.
MOT Usage
Published: 2023-04-13 06:16:40

Using MOT tables is quite simple and is described in the few short sections below.

openGauss enables an application to use of MOT tables and standard disk-based tables. You can use MOT tables for your most active, high-contention and throughput-sensitive application tables or you can use MOT tables for all your application's tables.

The following commands describe how to create MOT tables and how to convert existing disk-based tables into MOT tables in order to accelerate an application's database-related performance. MOT is especially beneficial when applied to tables that have proven to be bottlenecks.

Workflow Overview

The following is a simple overview of the tasks related to working with MOT tables –


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zwexm8cvoevypnwupnso.png)