//Method that logs the user into the application
private void btnLogin_Click(object sender, EventArgs e)
{
ShowLoading(true);
string userEmail = tbEmail.Text;
string password = tbPassword.Text;
//Validates the email address format
if (!IsValidEmail(userEmail))
{
ShowLoading(false);
MessageBox.Show("Invalid email has been entered. Please make sure your email format is correct e.g [email protected]");
}
//Correct email format has been entered
else
{
AsyncCallback <BackendlessUser> callback = new AsyncCallback <BackendlessUser>(
user =>
{
OwnerStorage.CurrentlyLoggedIn = user;
String whereClause = "ownerId = '" + user.ObjectId + "'";
BackendlessAPI.Persistence.DataQueryBuilder queryBuilder = BackendlessAPI.Persistence.DataQueryBuilder.Create();
queryBuilder.SetWhereClause(whereClause);
AsyncCallback <IList <Restaurant> > getRestaurantCallback = new AsyncCallback <IList <Restaurant> >(
foundRestaurant =>
{
//Checks if restaurants exist under the logged in user
if (foundRestaurant.Count != 0)
{
List <Restaurant> tempList = (List <Restaurant>)foundRestaurant;
//Checks if the user manages multiple restaurants and if true, prompts the user to select a restaurant to sign into
if (tempList.Count > 1)
{
SelectRestaurantForm selectForm = new SelectRestaurantForm(tempList);
selectForm.ShowDialog();
OwnerStorage.ThisRestaurant = selectForm.selected;
}
//The user only manages one restaurant - Logs the user into their registered restaurant
else
{
OwnerStorage.ThisRestaurant = tempList[0];
}
Invoke(new Action(() =>
{
DialogResult = DialogResult.OK;
this.Close();
}));
}
//No restaurants were found under the entered login credentials
else
{
Invoke(new Action(() =>
{
ShowLoading(false);
MessageBox.Show(this, "No Restaurant was located under these login credentials. If " +
"you are a new user who only recently created a Tablefind Profile " +
"then it may be that we are still setting up your profile for a restaurant " +
"on our side. If this issue is not resolved within one week, please contact " +
"a member of our development team to assist with restaurant registeration");
}));
}
},
error =>
{
//Something went wrong. An error message will now be displayed
//Runs visual aspects on a new thread because you cannot alter visual aspects on any thread other than the GUI thread
Invoke(new Action(() =>
{
ShowLoading(false);
MessageBox.Show(this, "Error: " + error.Message);
}));
});
//Executes the callback
Backendless.Data.Of <Restaurant>().Find(queryBuilder, getRestaurantCallback);
},
fault =>
{
//Something went wrong. An error message will now be displayed
//Runs visual aspects on a new thread because you cannot alter visual aspects on any thread other than the GUI thread
Invoke(new Action(() =>
{
ShowLoading(false);
MessageBox.Show(this, "Error: " + fault.Message);
}));
});
//Signs the user into the application and keeps the user logged in if the 'Stay Signed In' checkbox is checked
Backendless.UserService.Login(userEmail, password, callback, cbxStaySignedIn.Checked ? true : false);
}
}
public SignInForm()
{
InitializeComponent();
ShowLoading(true);
AsyncCallback <Boolean> callback = new AsyncCallback <Boolean>(
isValidLogin =>
{
string loggedInUserObjectId = Backendless.UserService.LoggedInUserObjectId();
//Checks if the user chose to stay logged in
if (loggedInUserObjectId != null)
{
AsyncCallback <BackendlessUser> findCallBack = new AsyncCallback <BackendlessUser>(
success =>
{
OwnerStorage.CurrentlyLoggedIn = success;
String whereClause = "ownerId = '" + success.ObjectId + "'";
BackendlessAPI.Persistence.DataQueryBuilder queryBuilder = BackendlessAPI.Persistence.DataQueryBuilder.Create();
queryBuilder.SetWhereClause(whereClause);
AsyncCallback <IList <Restaurant> > getRestaurantCallback = new AsyncCallback <IList <Restaurant> >(
foundRestaurant =>
{
//Checks if restaurants exist under the logged in user
if (foundRestaurant.Count != 0)
{
List <Restaurant> tempList = (List <Restaurant>)foundRestaurant;
//Checks if the user manages multiple restaurants and if true, prompts the user to select a restaurant to sign into
if (tempList.Count > 1)
{
SelectRestaurantForm selectForm = new SelectRestaurantForm(tempList);
selectForm.ShowDialog();
OwnerStorage.ThisRestaurant = selectForm.selected;
}
//The user only manages one restaurant - Logs the user into their registered restaurant
else
{
OwnerStorage.ThisRestaurant = tempList[0];
}
Invoke(new Action(() =>
{
DialogResult = DialogResult.OK;
this.Close();
}));
}
//No restaurants were found under the entered login credentials
else
{
Invoke(new Action(() =>
{
ShowLoading(false);
MessageBox.Show(this, "No Restaurant was located under these login credentials. If " +
"you are a new user who only recently created a Tablefind Profile " +
"then it may be that we are still setting up your profile for a restaurant " +
"on our side. If this issue is not resolved within one week, please contact us.");
}));
}
},
error =>
{
//Something went wrong. An error message will now be displayed
//Runs visual aspects on a new thread because you cannot alter visual aspects on any thread other than the GUI thread
Invoke(new Action(() =>
{
ShowLoading(false);
MessageBox.Show(this, "Error: " + error.Message);
}));
});
Backendless.Data.Of <Restaurant>().Find(queryBuilder, getRestaurantCallback);
},
fault =>
{
//Something went wrong. An error message will now be displayed
//Runs visual aspects on a new thread because you cannot alter visual aspects on any thread other than the GUI thread
AsyncCallback <Object> logoutCallback = new AsyncCallback <Object>(
user =>
{
},
logoutfault =>
{
});
Backendless.UserService.Logout(logoutCallback);
Invoke(new Action(() =>
{
ShowLoading(false);
}));
});
//Retrieves the user object
Backendless.Data.Of <BackendlessUser>().FindById(loggedInUserObjectId, findCallBack);
}
//User chose to not stay signed in
else
{
ShowLoading(false);
}
},
fault =>
{
//Something went wrong. An error message will now be displayed
//Runs visual aspects on a new thread because you cannot alter visual aspects on any thread other than the GUI thread
Invoke(new Action(() =>
{
ShowLoading(false);
}));
});
//Executes the callback
Backendless.UserService.IsValidLogin(callback);
//Displays textbox field hints
SendMessage(tbEmail.Handle, 0x1501, 1, " Please enter E-mail");
SendMessage(tbPassword.Handle, 0x1501, 1, " Please enter password");
SendMessage(tbEmailAddress.Handle, 0x1501, 1, " Enter E-mail address");
SendMessage(tbPass.Handle, 0x1501, 1, " Enter password");
SendMessage(tbConfirmPass.Handle, 0x1501, 1, " Confirm password");
SendMessage(tbFirstName.Handle, 0x1501, 1, " First name");
SendMessage(tbLastName.Handle, 0x1501, 1, " Last name");
SendMessage(tbContactNumber.Handle, 0x1501, 1, " Mobile Number");
}
