/// <summary>
/// Delete a currency
/// </summary>
/// <param name="currencyId">currency external id</param>
/// <param name="deletedBy">username of the deletor</param>
/// <returns>true=currency deleted,false=currency not found</returns>
public static bool DeleteCurrency(Guid currencyId, string deletedBy)
{
// Connect to the MSSQL database
using (MSSqlConnection connection = MSSqlConnection.GetConnection())
{
// Get the table
Table <CurrencyTable> currencies = connection.GetTable <CurrencyTable>();
// Get the currency
CurrencyTable currency = currencies.FirstOrDefault(x => x.ExternalId == currencyId && !x.Deleted);
if (currency == null)
{
return(false);
}
// Set the currency deleted state
currency.Deleted = true;
// Set the deleted by
currency.DeletedBy = AccountsManager.GetAccountId(connection, deletedBy);
// Submit the changes
connection.SubmitChanges();
// Currency set to deleted, return true
return(true);
}
}
/// <summary>
/// Delete a comment
/// </summary>
/// <param name="commentId">comment</param>
/// <param name="deletedBy">username of the deletor</param>
/// <returns>
/// true = deleted state changed
/// false = deleted state did not change
/// </returns>
public static bool DeleteComment(Guid commentId, string deletedBy)
{
// Connect to the MSSQL database
using (MSSqlConnection connection = MSSqlConnection.GetConnection())
{
// Get the table
Table <CurrencyCommentTable> comments = connection.GetTable <CurrencyCommentTable>();
// Try to get the comment entry
CurrencyCommentTable comment = comments.FirstOrDefault(x => x.ExternalId == commentId && !x.Deleted);
if (comment == null)
{
return(false); // Comment deleted state did not changed
}
// Set the comment deleted flag to true
comment.Deleted = true;
// Set the deleted by
comment.DeletedBy = AccountsManager.GetAccountId(connection, deletedBy);
// Submit the changes
connection.SubmitChanges();
// Comment deleted state changed, return true
return(true);
}
}
/// <summary>
/// Create a new currency
/// </summary>
/// <param name="displayName">display name</param>
/// <param name="shortCode">short code</param>
/// <param name="createdBy">creator username</param>
/// <returns>currency external id</returns>
public static Guid CreateCurrency(string displayName, string shortCode, string createdBy)
{
// Connect to the MSSQL database
using (MSSqlConnection connection = MSSqlConnection.GetConnection())
{
// Check if the currency already exists
if (CurrencyExists(displayName, shortCode))
{
throw new InvalidOperationException("A currency with the same display name or shortcode already exists");
}
// Get the table
Table <CurrencyTable> currencies = connection.GetTable <CurrencyTable>();
// Create the external id for the currency
Guid externalId = Guid.NewGuid();
// Insert the new currency
currencies.InsertOnSubmit(new CurrencyTable()
{
ExternalId = externalId,
DisplayName = displayName,
Symbol = shortCode.ToUpper(),
Deleted = false,
CreatedBy = AccountsManager.GetAccountId(connection, createdBy),
DateCreated = DateTime.Now,
});
// Submit the changes
connection.SubmitChanges();
// Return the external id of the new currency
return(externalId);
}
}
/// <summary>
/// Create a new link category
/// </summary>
/// <param name="title">category title</param>
/// <param name="createdBy">username of the creator</param>
/// <returns>external category id</returns>
public static Guid CreateLinkCategory(string title, string createdBy)
{
// Connect to the MSSQL database
using (MSSqlConnection connection = MSSqlConnection.GetConnection())
{
// Get the tables
Table <LinkCategoryTable> categories = connection.GetTable <LinkCategoryTable>();
Table <AccountTable> accounts = connection.GetTable <AccountTable>();
// Create the external id for the new category
Guid externalId = Guid.NewGuid();
// Insert the new category
categories.InsertOnSubmit(new LinkCategoryTable()
{
ExternalId = externalId,
Title = title,
CreatedBy = AccountsManager.GetAccountId(connection, createdBy),
DateCreated = DateTime.Now,
Deleted = false,
});
// Submit the changes
connection.SubmitChanges();
// Return the external id of the new category
return(externalId);
}
}
/// <summary>
/// Delete a link item
/// </summary>
/// <param name="categoryId">category id</param>
/// <param name="deletedBy">username of the deletor</param>
/// <returns>
/// true = deleted state changed
/// false = deleted state did not change
/// </returns>
public static bool DeleteLinkItem(Guid categoryId, string deletedBy)
{
// Connect to the MSSQL database
using (MSSqlConnection connection = MSSqlConnection.GetConnection())
{
// Get the table
Table <LinkItemTable> items = connection.GetTable <LinkItemTable>();
// Try to get the category item
LinkItemTable item = items.FirstOrDefault(x => x.ExternalId == categoryId && !x.Deleted);
if (item == null)
{
return(false); // The deleted state did not changed, return false
}
// Set the deleted flag to true
item.Deleted = true;
// Set the deletor of the item
item.DeletedBy = AccountsManager.GetAccountId(connection, deletedBy);
// Submit the changes
connection.SubmitChanges();
// The deleted state changed, return true
return(true);
}
}
/// <summary>
/// Create a new comment
/// </summary>
/// <param name="currencyId">currency id</param>
/// <param name="message">message</param>
/// <param name="vote">vote</param>
/// <param name="createdBy">username of the comment author</param>
/// <returns>comment id</returns>
public static Guid CreateComment(Guid currencyId, string message, int vote, string createdBy)
{
// Connect to the MSSQL database
using (MSSqlConnection connection = MSSqlConnection.GetConnection())
{
// Get the tables
Table <CurrencyTable> currencies = connection.GetTable <CurrencyTable>();
Table <CurrencyCommentTable> comments = connection.GetTable <CurrencyCommentTable>();
Table <AccountTable> accounts = connection.GetTable <AccountTable>();
// Get the currency
CurrencyTable currency = currencies.FirstOrDefault(x => x.ExternalId == currencyId && !x.Deleted);
if (currency == null)
{
throw new InvalidOperationException("Currency not found");
}
// Create the external id for the comment
Guid externalId = Guid.NewGuid();
// Insert the comment
comments.InsertOnSubmit(new CurrencyCommentTable()
{
ExternalId = externalId,
Currency = currency.Id,
Message = message,
Vote = vote,
CreatedBy = AccountsManager.GetAccountId(connection, createdBy),
DateCreated = DateTime.Now,
Deleted = false,
});
// Submit the changes
connection.SubmitChanges();
// Return the external id of the new comment
return(externalId);
}
}
/// <summary>
/// Create a new link item
/// </summary>
/// <param name="categoryId"></param>
/// <param name="title"></param>
/// <param name="url"></param>
/// <param name="createdBy"></param>
/// <returns></returns>
public static Guid CreateLinkItem(Guid categoryId, string title, string url, string createdBy)
{
// Connect to the MSSQL database
using (MSSqlConnection connection = MSSqlConnection.GetConnection())
{
// Get the tables
Table <LinkCategoryTable> categories = connection.GetTable <LinkCategoryTable>();
Table <LinkItemTable> items = connection.GetTable <LinkItemTable>();
// Try to get the category entry
LinkCategoryTable category = categories.FirstOrDefault(x => x.ExternalId == categoryId && !x.Deleted);
if (category == null)
{
throw new Exception("Category not found");
}
// Create the external id for the new link item
Guid externalId = Guid.NewGuid();
// Insert the new item
items.InsertOnSubmit(new LinkItemTable()
{
Category = category.Id,
ExternalId = externalId,
Title = title,
Url = url,
CreatedBy = AccountsManager.GetAccountId(connection, createdBy),
DateCreated = DateTime.Now,
Deleted = false,
});
// Submit the changes
connection.SubmitChanges();
// Return the external id of the new item
return(externalId);
}
}
