phase 4
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Doar Mihai
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<?php
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namespace App\Services;
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use App\Models\Job;
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use Illuminate\Contracts\Pagination\LengthAwarePaginator;
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use Illuminate\Database\Eloquent\Builder;
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class JobSearchService
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{
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/**
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* Search jobs with advanced filters
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*/
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public function search(array $filters = [], int $perPage = 15): LengthAwarePaginator
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{
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$query = Job::query()
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->with(['source', 'category', 'jobLocation'])
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->active();
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// Apply filters
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$this->applyFilters($query, $filters);
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// Apply sorting
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$this->applySorting($query, $filters['sort'] ?? 'date');
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return $query->paginate($perPage);
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}
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/**
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* Apply filters to the query
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*/
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private function applyFilters(Builder $query, array $filters): void
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{
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// Keyword search (title, company, description)
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if (!empty($filters['keywords'])) {
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$keywords = $filters['keywords'];
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$query->where(function ($q) use ($keywords) {
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$q->where('title', 'LIKE', "%{$keywords}%")
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->orWhere('company', 'LIKE', "%{$keywords}%")
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->orWhere('description', 'LIKE', "%{$keywords}%");
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});
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}
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// Full-text search (if supported)
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if (!empty($filters['search'])) {
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$search = $filters['search'];
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$query->whereRaw(
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"MATCH(title, company, description) AGAINST(? IN BOOLEAN MODE)",
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[$search]
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);
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}
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// Location filter
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if (!empty($filters['location'])) {
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$location = $filters['location'];
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$query->where(function ($q) use ($location) {
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$q->where('location', 'LIKE', "%{$location}%")
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->orWhereHas('jobLocation', function ($q2) use ($location) {
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$q2->where('city', 'LIKE', "%{$location}%")
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->orWhere('state', 'LIKE', "%{$location}%")
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->orWhere('country', 'LIKE', "%{$location}%");
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});
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});
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}
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// Category filter
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if (!empty($filters['category_id'])) {
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$query->where('job_category_id', $filters['category_id']);
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}
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// Job type filter (can be array for multiple types)
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if (!empty($filters['job_type'])) {
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$types = is_array($filters['job_type']) ? $filters['job_type'] : [$filters['job_type']];
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$query->whereIn('job_type', $types);
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}
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// Experience level filter (can be array)
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if (!empty($filters['experience_level'])) {
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$levels = is_array($filters['experience_level']) ? $filters['experience_level'] : [$filters['experience_level']];
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$query->whereIn('experience_level', $levels);
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}
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// Remote filter
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if (isset($filters['remote']) && $filters['remote'] !== '') {
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$query->where('remote_allowed', (bool) $filters['remote']);
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}
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// Salary range filter
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if (!empty($filters['salary_min'])) {
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$query->where(function ($q) use ($filters) {
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$q->where('salary_max', '>=', $filters['salary_min'])
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->orWhereNull('salary_max');
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});
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}
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if (!empty($filters['salary_max'])) {
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$query->where(function ($q) use ($filters) {
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$q->where('salary_min', '<=', $filters['salary_max'])
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->orWhereNull('salary_min');
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});
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}
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// Posted date filter (e.g., last 24 hours, 7 days, 30 days)
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if (!empty($filters['posted_within'])) {
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$days = (int) $filters['posted_within'];
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$query->where(function ($q) use ($days) {
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$q->where('posted_at', '>=', now()->subDays($days))
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->orWhere(function ($q2) use ($days) {
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$q2->whereNull('posted_at')
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->where('created_at', '>=', now()->subDays($days));
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});
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});
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}
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// Source filter
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if (!empty($filters['source_id'])) {
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$query->where('job_source_id', $filters['source_id']);
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}
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// Company filter
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if (!empty($filters['company'])) {
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$query->where('company', 'LIKE', "%{$filters['company']}%");
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}
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}
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/**
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* Apply sorting to the query
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*/
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private function applySorting(Builder $query, string $sort): void
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{
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match ($sort) {
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'date' => $query->latest('posted_at'),
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'date_asc' => $query->oldest('posted_at'),
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'salary_desc' => $query->orderBy('salary_max', 'desc')->orderBy('salary_min', 'desc'),
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'salary_asc' => $query->orderBy('salary_min', 'asc')->orderBy('salary_max', 'asc'),
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'title' => $query->orderBy('title', 'asc'),
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'company' => $query->orderBy('company', 'asc'),
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'relevance' => $query->latest('created_at'), // Default to newest if no full-text score
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default => $query->latest('posted_at'),
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};
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}
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/**
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* Get autocomplete suggestions for job titles
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*/
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public function getTitleSuggestions(string $query, int $limit = 10): array
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{
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return Job::select('title')
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->where('title', 'LIKE', "{$query}%")
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->active()
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->groupBy('title')
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->limit($limit)
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->pluck('title')
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->toArray();
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}
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/**
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* Get autocomplete suggestions for companies
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*/
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public function getCompanySuggestions(string $query, int $limit = 10): array
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{
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return Job::select('company')
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->where('company', 'LIKE', "{$query}%")
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->active()
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->groupBy('company')
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->limit($limit)
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->pluck('company')
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->toArray();
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}
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/**
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* Get autocomplete suggestions for locations
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*/
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public function getLocationSuggestions(string $query, int $limit = 10): array
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{
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return Job::select('location')
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->where('location', 'LIKE', "{$query}%")
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->whereNotNull('location')
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->active()
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->groupBy('location')
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->limit($limit)
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->pluck('location')
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->toArray();
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}
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/**
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* Get available filter options
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*/
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public function getFilterOptions(): array
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{
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return [
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'job_types' => [
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'full-time' => 'Full-time',
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'part-time' => 'Part-time',
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'contract' => 'Contract',
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'temporary' => 'Temporary',
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'internship' => 'Internship',
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'freelance' => 'Freelance',
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],
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'experience_levels' => [
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'entry' => 'Entry Level',
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'mid' => 'Mid Level',
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'senior' => 'Senior Level',
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'lead' => 'Lead',
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'executive' => 'Executive',
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],
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'posted_within' => [
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1 => 'Last 24 hours',
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7 => 'Last 7 days',
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30 => 'Last 30 days',
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90 => 'Last 3 months',
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],
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'sort_options' => [
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'date' => 'Most Recent',
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'date_asc' => 'Oldest First',
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'salary_desc' => 'Highest Salary',
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'salary_asc' => 'Lowest Salary',
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'title' => 'Title A-Z',
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'company' => 'Company A-Z',
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],
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];
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}
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}
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