/// <summary>
/// Method to select an Version.
/// </summary>
/// <param name="op">Versions entities select options to perform query.</param>
/// <returns>A Version entity or null if not found.</returns>
public VersionEntity Select(VersionOptionsSelect op)
{
// Initialize query.
IQueryable <VersionEntity> query = Connector.Versions;
// Initialize
if (op.PrimaryKey > 0)
{
return(SingleIdOrNull(query, op));
}
if (!op.AssemblyVersionMin.IsNullOrWhiteSpace())
{
return(SingleAssemblyVersionMinOrNull(query, op));
}
if (!op.AssemblyVersionMax.IsNullOrWhiteSpace())
{
return(SingleAssemblyVersionMaxOrNull(query, op));
}
return(null);
}
/// <summary>
/// Method to select an Version by AssemblyVersionMin.
/// </summary>
/// <returns>An Version entity or null if not found.</returns>
public VersionEntity SingleAssemblyVersionMaxOrNull(IQueryable <VersionEntity> query, VersionOptionsSelect op)
{
// Select version by AssemblyVersionMax.
VersionEntity item = null;
try
{
item = query.SingleOrDefault(x => x.AssemblyVersionMax == op.AssemblyVersionMax);
}
catch (Exception e)
{
log.Error("Version single AssemblyVersionMax not found !", e);
return(null);
}
// Check if user is found, return null instead of default.
if (item != null && item.PrimaryKey == 0)
{
return(null);
}
return(item);
}
/// <summary>
/// Method to select single User by id.
/// </summary>
/// <returns>An User entity or null if not found.</returns>
public VersionEntity SingleIdOrNull(IQueryable <VersionEntity> query, VersionOptionsSelect op)
{
return(SingleIdOrNull(query, x => x.VersionId == op.PrimaryKey));
}
