protected void Update_Page(object sender, EventArgs e)
{
//This section of the code will get the updated details from the form and call the UpdatePage method.
// Creating a CMSDB object to use the AddPage(HTTP_Page page) method.
CMSDB db = new CMSDB();
//Getting the pageid from the Request object.
string pageid = Request.QueryString["pageid"];
//If pageid is empty the custom error message will be written, otherwise the updated data in the form will be inserted into the database.
if (String.IsNullOrEmpty(pageid))
{
page_update.InnerHtml = "There was an error updating that student.";
}
else
{
//Creating a new HTTP_Page object which store the values retrieved from the form.
HTTP_Page new_page = new HTTP_Page();
//Code to get the values from the form and set it to the 'new_page' object.
new_page.SetPageTitle(page_title.Text);
new_page.SetPageContent(page_content.Text);
//if page_publish_box is checked true will be stored in pagePublishStatus which is of Boolean type
if (page_publish_box.Checked)
{
new_page.SetPagePublishStatus(true);
}
else
{
new_page.SetPagePublishStatus(false);
}
// If 'Add new author' option in selected in the drop down, the data entered in the 'page_author' textbox will be inserted into the db.
if (page_author_list.SelectedItem.Value == "New")
{
new_page.SetPageAuthor(page_author.Text);
}
else
{
new_page.SetPageAuthor(page_author_list.SelectedItem.Value);
}
//Calling the UpdatePage function to update the page details into the database using try catch blocks.
try
{
db.UpdatePage(Int32.Parse(pageid), new_page);
//After update the LispPages.aspx will be loaded.
Response.Redirect("ListPages.aspx");
}
catch (Exception ex)
{
Debug.WriteLine("Something went wrong in the UpdateStudent Method!");
Debug.WriteLine(ex.ToString());
}
}
}
protected void Add_Page(object sender, EventArgs e)
{
// Creating a CMSDB object to use the AddPage(HTTP_Page page) method.
CMSDB db = new CMSDB();
//Creating a new HTTP_Page object which store the values retrieved from the form. s
HTTP_Page new_page = new HTTP_Page();
//Code to get the values from the form and set it to the 'new_page' object.
new_page.SetPageTitle(page_title.Text);
//if page_publish_box is checked true will be stored in pagePublishStatus which is of Boolean type
new_page.SetPageContent(page_content.Text);
if (page_publish_box.Checked)
{
new_page.SetPagePublishStatus(true);
}
else
{
new_page.SetPagePublishStatus(false);
}
// If 'Add new author' option in selected in the drop down, the data entered in the 'page_author' textbox will be inserted into the db.
if (page_author_list.SelectedItem.Value == "New")
{
new_page.SetPageAuthor(page_author.Text);
}
else
{
new_page.SetPageAuthor(page_author_list.SelectedItem.Value);
}
//Calling the AddPage function to insert the page details into the database.
db.AddPage(new_page);
//Going back to ListPages.aspx after inserting the data.
Response.Redirect("ListPages.aspx");
}
public HTTP_Page ViewPage(int id)
{
//Creating an object of class connect using the connectionString
MySqlConnection Connect = new MySqlConnection(ConnectionString);
//Creating an object of HTTP_Page which will be returned by the function
HTTP_Page page = new HTTP_Page();
//Try block to catch exceptions that may arise from the code.
try
{
//Below query will select the record with the pageid passed in the parameter.
string query = "select * from PAGE where pageid = " + id;
Debug.WriteLine("Connection Initialized...");
//Below lines open the connection, run the query against the db and get the resultset
Connect.Open();
MySqlCommand cmd = new MySqlCommand(query, Connect);
MySqlDataReader resultset = cmd.ExecuteReader();
//read through the result set
while (resultset.Read())
{
//To loop across each column in the PAGE table
for (int i = 0; i < resultset.FieldCount; i++)
{
string key = resultset.GetName(i);
string value = resultset.GetString(i);
if (key == "pagetitle")
{
page.SetPageTitle(value);
}
if (key == "pagebody")
{
page.SetPageContent(value);
}
if (key == "pageauthor")
{
page.SetPageAuthor(value);
}
if (key == "pagedate")
{
page.SetPagePublishDate(value);
}
}
}
}
catch (Exception ex)
{
//Writing the error in order to debug
Debug.WriteLine("Exception in ViewPage(int id) method!");
Debug.WriteLine(ex.ToString());
}
//Below block will execute even when there's an exception.
finally
{
Connect.Close();
Debug.WriteLine("Database connection closed.");
}
//Returning the required page
return(page);
}
//ListPages function returns a 'List of HTTP_Page objects'. Using these page objects the records are dynamically displayed.
public List <HTTP_Page> ListPages(string query)
{
MySqlConnection Connect = new MySqlConnection(ConnectionString);
// Creating a List of HTTP_Page objects, which will be modified and returned by the function.
List <HTTP_Page> pageList = new List <HTTP_Page>();
try
{
//The below lines opens a connection, passes query to the connection and gets the result set after executing the query.
Connect.Open();
MySqlCommand cmd = new MySqlCommand(query, Connect);
MySqlDataReader resultset = cmd.ExecuteReader();
//Looping through the resultset to get the details needed to display in listPages.
while (resultset.Read())
{
//Creating page object which will hold individual record details. This will be added to the list ('pageList').
HTTP_Page page = new HTTP_Page();
Debug.WriteLine("Reading from the result Set");
//Code to get individual record details.
for (int i = 0; i < resultset.FieldCount; i++)
{
string key = resultset.GetName(i);
string value = resultset.GetString(i);
if (key == "pageid")
{
page.SetPageId(Int32.Parse(value));
}
if (key == "pagetitle")
{
page.SetPageTitle(value);
}
if (key == "pagebody")
{
page.SetPageContent(value);
}
if (key == "pageauthor")
{
page.SetPageAuthor(value);
}
if (key == "pagedate")
{
page.SetPagePublishDate(value);
}
if (key == "pagestatus")
{
page.SetPagePublishStatus(bool.Parse(value));
}
}
//Adding an individual page record to the pageList.
pageList.Add(page);
}
resultset.Close();
}
catch (Exception ex)
{
Debug.WriteLine("An exception occured in the ListPages(String query) method! ");
Debug.WriteLine(ex.ToString());
}
finally
{
//Closing the connection
Connect.Close();
}
Debug.WriteLine("Database Connection Closed.");
//Returning pageList which has a list of HTTP_Page objects.
return(pageList);
}