/// <summary>
/// Function called by login_button when clicked, handles login by:
/// 1. Querying Database for matching username and password and selecting record.
/// 2.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void login_button_Click(object sender, EventArgs e)
{
//check if fields are filled
if (!(string.IsNullOrEmpty(user_id_box.Text) && string.IsNullOrEmpty(password_box.Text)))
{
//verify username and password
using (var db = new Session1Entities1())
{
var user = (from u in db.Users
where u.userId == user_id_box.Text
where u.userPw == password_box.Text
select new { u, u.User_Type.userTypeId }).ToList();
//if count of users in the list is not zero, user exists.
if (user.Count() > 0 && user.First().userTypeId == 2)
{
//username and password auth successful.
//launch next form
this.Hide();
var RMF = new ResourceManagementForm();
RMF.Closed += (s, args) => this.Close();
RMF.Show();
}
else
{
MessageBox.Show("Invalid Username, Password or Unauthorised Access, this incident will be reported.");
}
}
}
else
{
MessageBox.Show("One or more fields are empty!!");
}
}
public async Task UpdateUI(int id)
{
using (var db = new Session1Entities1())
{
var res = (from r in db.Resources
where r.resId == id
select r).First();
resname_box.Text = res.resName;
restype_combo.Text = res.Resource_Type.resTypeName;
var alloc = (from a in db.Resource_Allocation
where a.resIdFK == id
select a).ToList();
numericUpDown1.Value = res.remainingQuantity;
foreach (var item in alloc)
{
if (item.skillIdFK == 1)
{
CS.Checked = true;
}
else if (item.skillIdFK == 2)
{
SSB.Checked = true;
}
else if (item.skillIdFK == 3)
{
NSA.Checked = true;
}
else if (item.skillIdFK == 4)
{
WT.Checked = true;
}
}
}
}
public async Task <List <string> > GetSkills()
{
using (var db = new Session1Entities1())
{
return((from s in db.Skills
select s.skillName).ToList());
}
}
public async Task <List <string> > GetType()
{
using (var db = new Session1Entities1())
{
return((from s in db.Resource_Type
select s.resTypeName).ToList());
}
}
public CreateAccount()
{
InitializeComponent();
using (var db = new Session1Entities1())
{
usertype_combo.DataSource = (from t in db.User_Type select t.userTypeName).ToList();
}
}
/// <summary>
/// Creates account and performs the necessary checks defined by the paper.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void create_button_Click(object sender, EventArgs e)
{
//first check if everything is filled in
if (!(string.IsNullOrEmpty(username_box.Text) && string.IsNullOrEmpty(user_id_box.Text) && string.IsNullOrEmpty(password_box.Text) && string.IsNullOrEmpty(password_again_box.Text) && string.IsNullOrEmpty(password_box.Text) && (usertype_combo.SelectedItem == null)))
{
//if everything is filled in, proceed with other checks
//check if both passwords are the same
if (password_box.Text == password_again_box.Text)
{
//check if user id exists in db
using (var db = new Session1Entities1())
{
var query1 = (from u in db.Users
where u.userId == user_id_box.Text
select u).ToList();
if (query1.Count == 0)
{
//check if userid is equal to 8 chars or more.
if (user_id_box.Text.Length >= 8)
{
var user = new User()
{
userId = user_id_box.Text,
userName = username_box.Text,
userPw = password_again_box.Text,
userTypeIdFK = (from t in db.User_Type where t.userTypeName == usertype_combo.SelectedItem.ToString() select t.userTypeId).First()
};
db.Users.Add(user);
await db.SaveChangesAsync();
this.Hide();
var form = new LoginPage();
form.Closed += (s, args) => this.Close();
form.Show();
MessageBox.Show("Added User!");
}
else
{
MessageBox.Show("UserID must be 8 characters or more!!");
}
}
else
{
MessageBox.Show("UserID is taken!!");
}
}
}
else
{
MessageBox.Show("Passwords don't match!");
}
}
}
private async void Button2_Click(object sender, EventArgs e)
{
if (MessageBox.Show("This action cannot be undone!", "Are you sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
{
using (var db = new Session1Entities1())
{
var selectedid = int.Parse(dataGridView1.Rows[0].Cells[0].Value.ToString());
var s = (from a in db.Resources
where a.resId == selectedid
select a).First();
var allocs = (from a in db.Resource_Allocation
where a.resIdFK == selectedid
select a).ToList();
db.Resources.Remove(s);
foreach (var item in allocs)
{
db.Resource_Allocation.Remove(item);
}
await db.SaveChangesAsync();
}
ReloadDGV();
}
}
/// <summary>
/// Get Resources from database to fill the default list, which will then be used to populate the datagridview.
/// </summary>
/// <param name="typefilter">
/// parameter to filter by type.
/// </param>
/// <returns></returns>
public async Task <List <ResourceManagement> > GetResources(string typefilter = null, string skillfilter = null)
{
var returnlist = new List <ResourceManagement>();
using (var db = new Session1Entities1())
{
var resources = (from r in db.Resources
join rt in db.Resource_Type on r.resTypeIdFK equals rt.resTypeId
select new { r, rt }).ToList();
if (typefilter != null)
{
resources = (from r in resources
where r.rt.resTypeName == typefilter
select r).ToList();
}
foreach (var item in resources)
{
var skills = (from ra in db.Resource_Allocation
where ra.resIdFK == item.r.resId
select ra.Skill.skillName).ToList();
string allc = "Nil";
string quantity = "Not Available";
int noSkills = 0;
if (skills.Count > 0)
{
allc = "";
foreach (var a in skills)
{
noSkills++;
allc += $", {a}";
}
}
if (item.r.remainingQuantity > 5)
{
quantity = "Sufficient";
}
else if (item.r.remainingQuantity < 5 && item.r.remainingQuantity > 1)
{
quantity = "Low Stock";
}
if (skillfilter != null)
{
if (skills.Contains(skillfilter))
{
returnlist.Add(
new ResourceManagement()
{
ID = item.r.resId,
Name = item.r.resName,
Type = item.rt.resTypeName,
NoSkills = noSkills,
AllocatedSkills = allc,
AvailableQuantity = quantity
});
}
}
else
{
returnlist.Add(
new ResourceManagement()
{
ID = item.r.resId,
Name = item.r.resName,
Type = item.rt.resTypeName,
NoSkills = noSkills,
AllocatedSkills = allc,
AvailableQuantity = quantity
});
}
}
}
return(returnlist);
}
/// <summary>
/// Adds a new resource and its allocation, depending on if the checkbox for the different skills are checked.
/// </summary>
/// <returns></returns>
public async Task AddResource()
{
using (var db = new Session1Entities1()) {
//need to add resource and RA entries.
int resourceid = 1;
try
{
resourceid = (from x in db.Resources orderby x.resId descending select x.resId).First() + 1;
}
catch
{
}
var resource = new Resource()
{
remainingQuantity = (int)numericUpDown1.Value,
resId = resourceid,
resName = resname_box.Text,
resTypeIdFK = restype_combo.SelectedIndex + 1
};
db.Resources.Add(resource);
if (CS.Checked)
{
//try catch because it might error if there are no results found(database does not contain any values by default)
try
{
//try getting the largest id +1 as entity framework does not support auto incrementing.
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = resourceid,
skillIdFK = 1
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = resourceid,
skillIdFK = 1
};
db.Resource_Allocation.Add(ra);
}
}
if (SSB.Checked)
{
try
{
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = resourceid,
skillIdFK = 2
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = resourceid,
skillIdFK = 2
};
db.Resource_Allocation.Add(ra);
}
}
if (NSA.Checked)
{
try
{
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = resourceid,
skillIdFK = 3
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = resourceid,
skillIdFK = 3
};
db.Resource_Allocation.Add(ra);
}
}
if (WT.Checked)
{
try
{
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = resourceid,
skillIdFK = 4
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = resourceid,
skillIdFK = 4
};
db.Resource_Allocation.Add(ra);
}
}
await db.SaveChangesAsync();
MessageBox.Show("Done!");
back_button_Click(null, null);
}
}
/// <summary>
/// Update function, tries to update and check if the resource allocation already exists for the specific resource and will update, add and delete accordingly.
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
///
public async Task updateDatabase(int id)
{
using (var db = new Session1Entities1())
{
var res = (from r in db.Resources
where r.resId == id
select r).First();
var ras = (from ra in db.Resource_Allocation
where ra.resIdFK == id
select ra.skillIdFK).ToList();
res.remainingQuantity = (int)numericUpDown1.Value;
if (CS.Checked && !ras.Contains(1))
{
try
{
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = res.resId,
skillIdFK = 1
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = res.resId,
skillIdFK = 1
};
db.Resource_Allocation.Add(ra);
}
}
else if (!CS.Checked && ras.Contains(1))
{
//sometimes .First() can return an error, hence put it in a try catch
try
{
var findra = (from a in db.Resource_Allocation
where a.skillIdFK == 1
where a.resIdFK == id
select a).First();
db.Resource_Allocation.Remove(findra);
}
catch
{
}
}
if (SSB.Checked && !ras.Contains(2))
{
try
{
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = res.resId,
skillIdFK = 2
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = res.resId,
skillIdFK = 2
};
db.Resource_Allocation.Add(ra);
}
}
else if (!SSB.Checked && ras.Contains(2))
{
//sometimes .First() can return an error, hence put it in a try catch
try
{
var findra = (from a in db.Resource_Allocation
where a.skillIdFK == 2
where a.resIdFK == id
select a).First();
db.Resource_Allocation.Remove(findra);
}
catch
{
}
}
if (NSA.Checked && !ras.Contains(3))
{
try
{
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = res.resId,
skillIdFK = 3
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = res.resId,
skillIdFK = 3
};
db.Resource_Allocation.Add(ra);
}
}
else if (!NSA.Checked && ras.Contains(3))
{
//sometimes .First() can return an error, hence put it in a try catch
try
{
var findra = (from a in db.Resource_Allocation
where a.skillIdFK == 3
where a.resIdFK == id
select a).First();
db.Resource_Allocation.Remove(findra);
}
catch
{
}
}
if (WT.Checked && !ras.Contains(4))
{
try
{
var ra = new Resource_Allocation()
{
allocId = (from x in db.Resource_Allocation orderby x.allocId descending select x.allocId).First() + 1,
resIdFK = res.resId,
skillIdFK = 4
};
db.Resource_Allocation.Add(ra);
}
catch
{
var ra = new Resource_Allocation()
{
allocId = 1,
resIdFK = res.resId,
skillIdFK = 4
};
db.Resource_Allocation.Add(ra);
}
}
else if (!WT.Checked && ras.Contains(4))
{
//sometimes .First() can return an error, hence put it in a try catch
try
{
var findra = (from a in db.Resource_Allocation
where a.skillIdFK == 4
where a.resIdFK == id
select a).First();
db.Resource_Allocation.Remove(findra);
}
catch
{
}
}
await db.SaveChangesAsync();
MessageBox.Show("Done");
}
}