/// <summary>
/// Gets the type of a given defined variable
/// </summary>
/// <returns></returns>
public string GetDefinedVariableType(string variableName)
{
foreach (IDashboardRule rule in this)
{
if (rule is DataAssignmentRule)
{
DataAssignmentRule assignRule = rule as DataAssignmentRule;
return(assignRule.DestinationColumnType);
}
}
throw new ApplicationException(string.Format(SharedStrings.DASHBOARD_ERROR_DEFINED_VARIABLE_MISSING, variableName));
}
/// <summary>
/// Gets the number of assignments for a given column
/// </summary>
/// <returns>Int; represents the number of variables dependent on the variable passed in as a parameter</returns>
public int GetColumnAssignmentCount(string friendlyRule)
{
IDashboardRule rule = GetRule(friendlyRule);
if (rule is DataAssignmentRule)
{
DataAssignmentRule assignRule = rule as DataAssignmentRule;
return(GetRules(assignRule.DestinationColumnName).Count);
}
else
{
return(-1);
}
}
/// <summary>
/// Gets a dictionary of all user-defined variables in this rule set
/// </summary>
/// <returns>Dictionary of user-defined variables</returns>
public Dictionary <string, string> GetUserDefinedVariables()
{
Dictionary <string, string> userDefinedVariableNames = new Dictionary <string, string>();
foreach (IDashboardRule rule in this)
{
if (rule is DataAssignmentRule)
{
DataAssignmentRule assignRule = rule as DataAssignmentRule;
userDefinedVariableNames.Add(assignRule.DestinationColumnName, assignRule.DestinationColumnType);
}
}
return(userDefinedVariableNames);
}
/// <summary>
/// Adds a new rule to the set of dashboard rules
/// </summary>
/// <param name="rule">The rule to add</param>
/// <returns>Boolean; whether the addition was successful</returns>
public bool AddRule(IDashboardRule rule)
{
#region Input Validation
if (rule == null || string.IsNullOrEmpty(rule.FriendlyRule))
{
throw new ArgumentNullException("rule");
}
#endregion // Input Validation
// check for duplicate rules
foreach (DataRow row in RuleTable.Rows)
{
IDashboardRule rRule = (IDashboardRule)row[COLUMN_RULE];
if (rRule.FriendlyRule.Equals(rule.FriendlyRule))
{
// cannot add a duplicate rule, so return false
return(false);
}
}
// find the highest run order value of all the rules presently in the table
int maxInt = int.MinValue;
foreach (DataRow row in RuleTable.Rows)
{
int value = row.Field <int>(COLUMN_RUN_ORDER);
maxInt = Math.Max(maxInt, value);
}
RuleTable.Rows.Add(maxInt + 1, rule);
// sort by run order
this.ruleTable = RuleTable.Select("", COLUMN_RUN_ORDER).CopyToDataTable().DefaultView.ToTable("RuleTable");
if (rule is DataAssignmentRule)
{
DataAssignmentRule assignRule = rule as DataAssignmentRule;
if (!dashboardHelper.TableColumnNames.ContainsKey(assignRule.DestinationColumnName))
{
dashboardHelper.TableColumnNames.Add(assignRule.DestinationColumnName, assignRule.DestinationColumnType);
}
}
return(true);
}
/// <summary>
/// Removes a rule
/// </summary>
/// <returns>Bool</returns>
public bool RemoveRule(string friendlyRule)
{
int i;
int rowIndexToRemove = -1;
DataRow row = null;
for (i = 0; i < RuleTable.Rows.Count; i++)
{
row = RuleTable.Rows[i];
string str = row[COLUMN_RULE].ToString();
if (str.Equals(friendlyRule))
{
rowIndexToRemove = i;
break;
}
}
if (rowIndexToRemove >= 0)
{
row = RuleTable.Rows[rowIndexToRemove];
IDashboardRule rule = ((IDashboardRule)row[COLUMN_RULE]);
if (rule is DataAssignmentRule && this.GetColumnAssignmentCount(rule.FriendlyRule) == 1)
{
DataAssignmentRule assignRule = rule as DataAssignmentRule;
if (dashboardHelper.TableColumnNames.ContainsKey(assignRule.DestinationColumnName))
{
if (assignRule.OverwritesPermanentField == false)
{
dashboardHelper.TableColumnNames.Remove(assignRule.DestinationColumnName);
}
}
}
RuleTable.Rows.Remove(row);
return(true);
}
return(false);
}
/// <summary>
/// Gets the dependencies for a particular defined variable
/// </summary>
/// <returns>Int; represents the number of variables dependent on the variable passed in as a parameter</returns>
public List <VariableDependency> GetDependencyList(string friendlyRule)
{
IDashboardRule rule = GetRule(friendlyRule);
List <VariableDependency> dependencies = new List <VariableDependency>();
if (rule is DataAssignmentRule)
{
// the one we're checking on for dependencies
DataAssignmentRule assignRule = rule as DataAssignmentRule;
for (int i = 0; i < RuleTable.Rows.Count; i++)
{
DataRow row = RuleTable.Rows[i];
IDashboardRule iRule = ((IDashboardRule)row[COLUMN_RULE]);
if (rule is DataAssignmentRule && rule.FriendlyRule != friendlyRule)
{
// a variable in the list, being checked to see if it's being depended on
//DataAssignmentRule iAssignRule = rule as DataAssignmentRule;
//VariableDependency vd = new VariableDependency();
//vd.VariableName = iAssignRule.DestinationColumnName;
//if (iAssignRule is Rule_Recode)
//{
// Rule_Recode iRecodeRule = iAssignRule as Rule_Recode;
// if(iRecodeRule.SourceColumnName
//}
//if (assignRule.DestinationColumnName.ToLowerInvariant().Equals(destinationColumnName.ToLowerInvariant()))
//{
// rules.Add(assignRule);
//}
}
}
}
return(dependencies);
}
/// <summary>
/// Returns all user-defined variables with the given destination column
/// </summary>
/// <param name="destinationColumnName">The destination column name</param>
/// <returns>Rule</returns>
public List <IDashboardRule> GetRules(string destinationColumnName)
{
int i;
DataRow row = null;
List <IDashboardRule> rules = new List <IDashboardRule>();
for (i = 0; i < RuleTable.Rows.Count; i++)
{
row = RuleTable.Rows[i];
IDashboardRule rule = ((IDashboardRule)row[COLUMN_RULE]);
if (rule is DataAssignmentRule)
{
DataAssignmentRule assignRule = rule as DataAssignmentRule;
if (assignRule.DestinationColumnName.ToLowerInvariant().Equals(destinationColumnName.ToLowerInvariant()))
{
rules.Add(assignRule);
}
}
}
return(rules);
}
