public Map<String, String> convertCodesToIds() {
		String accountCode = (String)arguments.get('accountCode');
		String locationCode = (String)arguments.get('locationCode');
		String sessionCode = (String)arguments.get('sessionCode');
		String orderCode = (String)arguments.get('orderCode');

		Map<String, String> ids = new Map<String, String>();

		if (!AvocadoUtils.invalidString(accountCode)) {
			Account[] acc = [
				SELECT Id
				FROM Account
				WHERE Code__c = :accountCode
			];

			if (acc == null || acc.size() == 0) {
				throw new AvocadoException('Could not find any account from code');
			}

			ids.put('accountId', acc[0].Id);
		}

		if (!AvocadoUtils.invalidString(locationCode)) {
			Location__c[] loc = [
				SELECT Id
				FROM Location__c
				WHERE Code__c = :locationCode
			];

			if (loc == null || loc.size() == 0) {
				throw new AvocadoException('Could not find any location from code');
			}

			ids.put('locationId', loc[0].Id);
		}

		if (!AvocadoUtils.invalidString(sessionCode)) {
			Session__c[] ses = [
				SELECT Id
				FROM Session__c
				WHERE Code__c = :sessionCode
			];

			if (ses == null || ses.size() == 0) {
				throw new AvocadoException('Could not find any session from code');
			}

			ids.put('sessionId', ses[0].Id);
		}

		if (!AvocadoUtils.invalidString(locationCode)) {
			Order[] ord = [
				SELECT Id
				FROM Order
				WHERE Code__c = :orderCode
			];

			if (ord == null || ord.size() == 0) {
				throw new AvocadoException('Could not find any order from code');
			}

			ids.put('orderId', ord[0].Id);
		}

		return ids;
	}