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package edu.ncsu.csc.itrust.action;
import edu.ncsu.csc.itrust.action.base.EditEntryAction;
import edu.ncsu.csc.itrust.beans.EntryBean;
import edu.ncsu.csc.itrust.beans.FoodEntryBean;
import edu.ncsu.csc.itrust.dao.DAOFactory;
import edu.ncsu.csc.itrust.dao.mysql.FoodEntryDAO;
import edu.ncsu.csc.itrust.exception.DBException;
import edu.ncsu.csc.itrust.exception.FormValidationException;
import edu.ncsu.csc.itrust.exception.ITrustException;
import edu.ncsu.csc.itrust.validate.FoodEntryValidator;
/**
* EditFoodEntryAction.java
* Version 1
* 2/26/2105
* Copyright notice: none
* Responsible for editing a food entry from a patient's
* Food Diary.
*/
public class EditFoodEntryAction implements EditEntryAction {
private FoodEntryDAO foodDAO;
private long loggedInMID;
private FoodEntryValidator foodValidator;
/**
* Uses the factory to instantiate the foodentrydao
* @param factory which DAOFactory to use
* @param loggedInMID who is currently logged in
*/
public EditFoodEntryAction(DAOFactory factory, long loggedInMID) {
foodDAO = new FoodEntryDAO(factory);
this.loggedInMID = loggedInMID;
foodValidator = new FoodEntryValidator();
}
/**
* Edits the food entry of a patient. It first checks to make sure that the
* patient has the ability to edit this food entry because it belongs to
* him. Patients should only be able to edit entries that belong to them.
* @param foodEntry the bean to be updated
* @return the number of rows updated (0 means nothing happened,
* -1 means the logged in user cannot edit this food entry, and
* anything else is the number of rows updated which should never
* exceed 1)
* @throws ITrustException
*/
public int editEntry(EntryBean entry)
throws ITrustException, FormValidationException {
FoodEntryBean foodEntry = (FoodEntryBean) entry;
int numUpdated;
if (foodEntry.getPatientID() != loggedInMID) {
numUpdated = -1; //this user does not "own" this food entry
} else {
try {
//try to validate it
foodValidator.validate(foodEntry);
numUpdated = foodDAO.updateFoodEntry(
foodEntry.getEntryID(), loggedInMID, foodEntry);
} catch (DBException d) {
throw new ITrustException("Error updating entry from "
+ "Food Diary");
}
}
return numUpdated;
}
}