hackerESQ
84 lines
2.2 KiB
PHP
84 lines
2.2 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Database\Seeders;
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use Illuminate\Database\Console\Seeds\WithoutModelEvents;
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use Illuminate\Database\Seeder;
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use Illuminate\Support\Facades\DB;
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class MarketDataSeeder extends Seeder
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{
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use WithoutModelEvents;
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/**
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* Run the database seeds.
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*/
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public function run(): void
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{
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$chunkSize = 500;
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// Path to the CSV file
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$csvFilePath = realpath(__DIR__.'/market_data_seed.csv');
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// Open the file in read mode
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if (($handle = fopen($csvFilePath, 'r')) !== false) {
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$header = null;
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$rows = [];
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$rowCount = 0;
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while (($row = fgetcsv($handle, 0, ',')) !== false) {
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if (! $header) {
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// header must be the first row
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$header = $row;
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} else {
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try {
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$data = array_combine($header, $row);
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$rows[] = [
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'symbol' => $data['symbol'],
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'name' => $data['name'],
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'meta_data' => json_encode([
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'country' => $data['country'],
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'first_trade_year' => $data['first_trade_year'],
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'sector' => $data['sector'],
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'industry' => $data['industry'],
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]),
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];
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$rowCount++;
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if ($rowCount % $chunkSize == 0) {
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DB::table('market_data')->insertOrIgnore($rows);
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$rows = [];
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}
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} catch (\Throwable $e) {
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throw new \Exception('Error: '.substr($e->getMessage(), 0, 500));
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}
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}
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}
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// final clean up
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if (! empty($rows)) {
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DB::table('market_data')->insertOrIgnore($rows);
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}
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// Close the CSV file
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fclose($handle);
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echo "Imported $rowCount market data items successfully!\n";
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} else {
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echo "Failed to open the CSV.\n";
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}
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}
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}
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