ed5bae9997
Introduce a mechanism to track and audit changes in exchange rates. This includes: - Creating `ExchangeRateHistory` model and migration to store rate changes. - Implementing `ExchangeRateService` to encapsulate rate logic. - Updating `UpdateExchangeRates` command to record history when rates change. - Adding `ExchangeRateHistoryResource` to the Filament admin panel for monitoring.
73 lines
1.9 KiB
PHP
73 lines
1.9 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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class ExchangeRateHistory extends Model
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{
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protected $table = 'exchange_rate_history';
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protected $fillable = [
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'currency_from',
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'currency_to',
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'old_rate',
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'new_rate',
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'change_percent',
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'change_source',
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'changed_by',
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'api_source',
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'notes',
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];
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protected $casts = [
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'old_rate' => 'decimal:2',
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'new_rate' => 'decimal:2',
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'change_percent' => 'decimal:4',
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];
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public function changedBy(): BelongsTo
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{
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return $this->belongsTo(User::class, 'changed_by');
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}
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// Helper برای محاسبه درصد تغییر
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public static function calculateChangePercent($old, $new): ?float
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{
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if (!$old || $old == 0) return null;
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return round((($new - $old) / $old) * 100, 4);
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}
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// Helper برای ثبت تغییر
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public static function recordChange(
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string $from,
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string $to,
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float $oldRate,
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float $newRate,
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string $source = 'manual',
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?int $userId = null,
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?string $apiSource = null,
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?string $notes = null
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): self {
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return self::create([
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'currency_from' => $from,
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'currency_to' => $to,
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'old_rate' => $oldRate,
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'new_rate' => $newRate,
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'change_percent' => self::calculateChangePercent($oldRate, $newRate),
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'change_source' => $source,
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'changed_by' => $userId,
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'api_source' => $apiSource,
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'notes' => $notes,
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]);
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}
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// Scope برای آخرین تغییر
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public function scopeLatest($query, string $from = 'AED', string $to = 'IRR')
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{
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return $query->where('currency_from', $from)
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->where('currency_to', $to)
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->orderBy('created_at', 'desc');
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}
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} |