private async void BtnSaveVacancyCategory_Click(object sender, RoutedEventArgs e)
{
Mouse.OverrideCursor = Cursors.Wait;
string vacancyCategory = tbxVacancyCategory.Text;
string vacancyLink = tbxVacancyLink.Text;
if (string.IsNullOrEmpty(vacancyCategory) || string.IsNullOrEmpty(vacancyLink))
{
MessageBox.Show("Заполните все поля");
Mouse.OverrideCursor = null;
return;
}
try
{
using (VacancyModelContainer db = new VacancyModelContainer())
{
if (db.Categories.Any(a => a.Name == vacancyCategory))
{
MessageBox.Show("Такая категория вакансий в базе уже существует");
return;
}
}
XDocument xDoc = XDocument.Load(vacancyLink);
using (VacancyModelContainer db = new VacancyModelContainer())
{
Category cat = new Category()
{
Name = vacancyCategory
};
db.Categories.Add(cat);
foreach (XElement xElem in xDoc.Element("rss").Element("channel").Elements("item"))
{
Vacancy vac = new Vacancy();
vac.Title = xElem.Element("title").Value;
vac.Link = xElem.Element("link").Value;
vac.Description = xElem.Element("description").Value;
vac.PubDate = Convert.ToDateTime(xElem.Element("pubDate").Value);
vac.Author = xElem.Element("author").Value;
vac.Category = cat;
db.Vacancies.Add(vac);
}
await db.SaveChangesAsync();
}
Mouse.OverrideCursor = null;
MessageBox.Show("Вакансии сохранены");
tbxVacancyCategory.Text = "";
tbxVacancyLink.Text = "";
}
catch (Exception ex)
{
Mouse.OverrideCursor = null;
MessageBox.Show(ex.Message);
}
}
private void LoadStatistic()
{
using (VacancyModelContainer db = new VacancyModelContainer())
{
lblNumberOfRecords.Content = db.Vacancies.Count();
lblNumberOfRecords2.Content = db.Categories.Count();
}
}
private void BtnClearCategories_Click(object sender, RoutedEventArgs e)
{
try
{
using (VacancyModelContainer db = new VacancyModelContainer())
{
db.Database.ExecuteSqlCommand("TRUNCATE TABLE Categories");
lblNumberOfRecords2.Content = db.Categories.Count();
}
MessageBox.Show("Таблица Categories очищена");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void BtnSearchVacancy_Click(object sender, RoutedEventArgs e)
{
Mouse.OverrideCursor = Cursors.Wait;
string searchValue = tbxSearchValue.Text;
if (string.IsNullOrEmpty(searchValue))
{
Mouse.OverrideCursor = null;
MessageBox.Show("Введите искомое значение");
return;
}
bool includeCategory = (bool)cbxCategory.IsChecked;
bool includeDateOfPublish = (bool)cbxDateOfPublish.IsChecked;
bool includeEmail = (bool)cbxEmail.IsChecked;
bool includeDescription = (bool)cbxDescription.IsChecked;
try
{
List <Vacancy> result = new List <Vacancy>();
using (VacancyModelContainer db = new VacancyModelContainer())
{
if (includeCategory)
{
var categoryId = from cat in db.Categories
where cat.Name.Contains(searchValue)
select cat.CategoryId;
(from catId in categoryId
from vac in db.Vacancies
where catId == vac.CategoryId
select vac).ToList().ForEach(f => result.Add(f));
}
if (includeDateOfPublish)
{
(from vac in db.Vacancies
where vac.PubDate.ToString().Contains(searchValue)
select vac).ToList().ForEach(f => result.Add(f));
}
if (includeEmail)
{
(from vac in db.Vacancies
where vac.Author.Contains(searchValue)
select vac).ToList().ForEach(f => result.Add(f));
}
if (includeDescription)
{
(from vac in db.Vacancies
where vac.Description.Contains(searchValue)
select vac).ToList().ForEach(f => result.Add(f));
}
}
if (result.Count == 0)
{
MessageBox.Show("Вакансий не найдено");
}
lvSearchResult.ItemsSource = result;
Mouse.OverrideCursor = null;
}
catch (Exception ex)
{
Mouse.OverrideCursor = null;
MessageBox.Show(ex.Message);
}
}