remove actions and data integrity
This commit is contained in:
Thanakorn S
@@ -0,0 +1,185 @@
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<?php
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/**
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* ContactManager
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*
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* Encapsulates contact and contact type operations:
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* - Soft-delete with downstream validation
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*
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* Note: Methods that modify data do NOT manage their own DB transactions.
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* Callers are responsible for wrapping operations in dbTransaction() when atomicity is needed.
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*/
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class ContactManager {
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private $pdo;
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private $company_id;
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public function __construct($pdo, $company_id) {
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$this->pdo = $pdo;
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$this->company_id = $company_id;
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}
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// ─────────────────────────────────────────────────────────────
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// Private helpers
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// ─────────────────────────────────────────────────────────────
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/**
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* Check if a contact_id is referenced in any active td_stock_* row.
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* Returns true if blocking stock exists.
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*/
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private function hasActiveStock(int $contact_id): bool {
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$sth = $this->pdo->prepare(
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"SELECT table_name FROM information_schema.tables
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WHERE table_schema = DATABASE()
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AND table_name LIKE 'td_stock_%'"
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);
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$sth->execute();
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$tables = $sth->fetchAll(PDO::FETCH_COLUMN);
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foreach ($tables as $table) {
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$sth = $this->pdo->prepare(
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"SELECT COUNT(*) FROM `$table`
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WHERE company_id = :company_id
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AND contact_id = :contact_id"
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);
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$sth->execute([
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':company_id' => $this->company_id,
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':contact_id' => $contact_id,
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]);
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if ($sth->fetchColumn() > 0) {
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return true;
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}
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}
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return false;
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}
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/**
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* Build a log entry array for audit context.
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*/
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private function buildLogEntry(string $action): array {
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return [
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'user_id' => $_SESSION['login_user_id'] ?? null,
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'dt' => date('Y-m-d H:i:s'),
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'login' => isset($_SESSION['otpTime'])
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? date('Y-m-d H:i:s', $_SESSION['otpTime'])
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: null,
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'action' => $action,
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];
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}
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// ─────────────────────────────────────────────────────────────
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// Contact type
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// ─────────────────────────────────────────────────────────────
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/**
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* Soft-delete a contact type.
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*
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* Blocks if any md_contact references this type.
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*
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* @throws Exception if contact type not found or has dependent contacts
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*/
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public function deleteContactType(int $type_id): void {
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$sth = $this->pdo->prepare(
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"SELECT id, contact_type, `log` FROM md_contact_type
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WHERE company_id = :company_id AND id = :id"
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);
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$sth->execute([
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':company_id' => $this->company_id,
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':id' => $type_id,
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]);
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$row = $sth->fetch(PDO::FETCH_ASSOC);
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if (!$row) {
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throw new Exception("Contact type not found.");
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}
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// Block if any contact references this type
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$sth = $this->pdo->prepare(
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"SELECT COUNT(*) FROM md_contact
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WHERE company_id = :company_id
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AND contact_type = :type_id"
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);
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$sth->execute([
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':company_id' => $this->company_id,
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':type_id' => $type_id,
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]);
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if ($sth->fetchColumn() > 0) {
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throw new Exception(
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"Cannot delete — contact type \"{$row['contact_type']}\" " .
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"still has contacts assigned to it."
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);
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}
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// Append delete event to log
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$log = json_decode($row['log'] ?? '[]', true) ?: [];
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$log[] = $this->buildLogEntry('delete');
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// Soft-delete
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$this->pdo->prepare(
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"UPDATE md_contact_type
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SET company_id = company_id * -1,
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`log` = :log
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WHERE id = :id AND company_id = :company_id"
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)->execute([
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':log' => json_encode($log),
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':id' => $type_id,
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':company_id' => $this->company_id,
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]);
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}
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// ─────────────────────────────────────────────────────────────
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// Contact
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// ─────────────────────────────────────────────────────────────
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/**
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* Soft-delete a contact.
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*
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* Blocks if the contact is referenced in any active td_stock_* row.
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*
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* @throws Exception if contact not found or referenced in active stock
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*/
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public function deleteContact(int $contact_id): void {
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$sth = $this->pdo->prepare(
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"SELECT id, contact_name, `log` FROM md_contact
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WHERE company_id = :company_id AND id = :id"
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);
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$sth->execute([
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':company_id' => $this->company_id,
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':id' => $contact_id,
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]);
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$row = $sth->fetch(PDO::FETCH_ASSOC);
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if (!$row) {
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throw new Exception("Contact not found.");
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}
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// Block if contact is referenced in any active stock transaction
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if ($this->hasActiveStock($contact_id)) {
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throw new Exception(
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"Cannot delete — \"{$row['contact_name']}\" " .
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"is referenced in active stock transactions."
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);
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}
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// Append delete event to log
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$log = json_decode($row['log'] ?? '[]', true) ?: [];
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$log[] = $this->buildLogEntry('delete');
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// Soft-delete
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$this->pdo->prepare(
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"UPDATE md_contact
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SET company_id = company_id * -1,
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`log` = :log
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WHERE id = :id AND company_id = :company_id"
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)->execute([
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':log' => json_encode($log),
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':id' => $contact_id,
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':company_id' => $this->company_id,
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]);
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}
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}
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