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NazemMahmud / ImageMigrationService.php
Created June 11, 2025 19:19
Laravel: Image migration after file download
<?php
namespace App\Services;
use App\Services\FileDownloadService;
use Illuminate\Http\UploadedFile;
class ImageMigrationService
{
/**
@NazemMahmud
NazemMahmud / FileDownloadService.php
Last active June 11, 2025 19:21
Laravel: Download an image from URL and return UploadedFile instance.
<?php
namespace App\Services; // this will be the namespace according to your file path
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Http;
use Exception;
/**
* Follow this gist to find out how to finally unlink and upload image
@NazemMahmud
NazemMahmud / FileDownloadAndImageMigrationService.php
Last active June 11, 2025 19:12
downloading images from URLs and uploading them to your storage. It Includes proper error handling, validation, and cleanup.
<?php
namespace App\Services; // this will be the namespace according to your file path
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;
use Exception;
class ImageMigrationService
@NazemMahmud
NazemMahmud / airwrk_interview.php
Last active December 21, 2022 17:18
Airwrk interview tasks
<?php
// Problem 1
function findPairs($nums) {
$count = 0;
$len = count($nums);
if ($len <= 1) { return 0; }
for ($i=0; $i < $len; $i++) {
for ($j=$i+1; $j < $len; $j++) {
@NazemMahmud
NazemMahmud / main.service.ts
Last active December 18, 2021 11:14
Angular Material: main service ts file for pagination sample
import {Injectable} from '@angular/core';
import {HttpClient, HttpParams} from '@angular/common/http';
@Injectable()
export class MainService {
constructor(protected http: HttpClient) {}
private readonly baseUrl = "127.0.0.1:8000/api"; // here use your project's base url
private additionalUrl = "/employees"; // here use your remaining route url
protected _url = `${this.baseUrl}${this.additionalUrl}`;
@NazemMahmud
NazemMahmud / main.component.ts
Last active December 18, 2021 11:10
Angular Material: main component ts file for pagination sample
import {AfterViewInit, Component, OnDestroy, OnInit, ViewChild} from '@angular/core';
import {Subject} from 'rxjs';
import {takeUntil} from 'rxjs/operators';
import {MatTableDataSource} from '@angular/material';
import {MainService} from './service/main.service';
// this will be your shared component path
import {BasicPaginationComponent} from '../shared/components/basic-pagination/basic-pagination.component';
@Component({
@NazemMahmud
NazemMahmud / main.component.html
Last active December 18, 2021 10:39
Angular Material: main component html file for pagination sample
<table mat-table *ngIf="dataSource; else noDataFound" [dataSource]="dataSource">
<!-- Name Column -->
<ng-container matColumnDef="name">
<th mat-header-cell *matHeaderCellDef mat-sort-header> Name</th>
<td mat-cell *matCellDef="let row"> {{row.name}} </td>
</ng-container>
<!-- Email Column -->
<ng-container matColumnDef="email">
<th mat-header-cell *matHeaderCellDef mat-sort-header> Email </th>
@NazemMahmud
NazemMahmud / KMP-substring-search.js
Last active December 11, 2021 20:30
KMP algorithm for substring search
/**
* @param {string} haystack
* @param {string} needle
* @return {number}
*/
function KMP(text, pattern){
let LPS = preProcess(pattern);
let i=0, j=0;
while(i < text.length && j < pattern.length){
if(text[i] == pattern[j]){
@NazemMahmud
NazemMahmud / KMP preprocess pattern.js
Last active December 11, 2021 20:22
Pre process pattern string for KMP algorithm
function preProcess(pattern) {
let lps = new Array(pattern.length);
let i = 0, j = 1; lps[0] = 0;
while (j < pattern.length) {
if(pattern[j] == pattern[i]) {
lps[j] = i + 1;
i++;
j++;
} else if(i != 0) {
i = lps[i-1];
@NazemMahmud
NazemMahmud / bank_sources.txt
Last active January 25, 2023 05:48
Browser Language Codes and symbols for currency
List of bank sources:
[
"imf": {
"description": "The International Monetary Fund (IMF) is an organization of 188 countries, working to foster global monetary cooperation, secure financial stability, facilitate international trade, promote high employment and sustainable economic growth, and reduce poverty around the world.",
"source": "imf",
"name": "International Monetary Fund",
"source_url": "http://www.imf.org/",
"available_from_date": "2020-05-05"
},