I need to perform the sum of each field across multiple records of the same entity and update the values on the same entity. Along with this I also need to store its formula.
AttributeList = { "price ", "quantity", "contact.revenue", "opportunity.sales"}
Below is the logic
foreach (var attribute in attributeList)
{
Decimal fieldSum = 0;
string computedNote = string.Empty;
foreach (var entity in mainEntityList)
{
if (entity.Contains(attribute))
{
if (entity.Attributes[attribute] != null)
{
string type = entity.Attributes[attribute].GetType().Name;
Decimal attrValue = 0;
if (type == "AliasedValue")
{
AliasedValue aliasedFieldValue = (entity.GetAttributeValue<AliasedValue>(attribute));
attrValue = aliasedFieldValue.Value.GetType().Name == "Decimal" ? (Decimal)aliasedFieldValue.Value : (Int32)aliasedFieldValue.Value;
}
else
{
attrValue = entity.Attributes[attribute].GetType().Name == "Decimal" ? entity.GetAttributeValue<Decimal>(attribute) : entity.GetAttributeValue<Int32>(attribute);
}
fieldSum += attrValue;
computedNote += $"+{Convert.ToInt32(attrValue).ToString()}";
}
}
else
{
computedNote += $"+0";
}
}
Entity formula = new Entity("formula");
if (fieldSum != 0)
{
if (attribute.Contains("opportunity"))
{
opportunity[attributeName] = fieldSum;
entityName = Opportunity.EntityLogicalName;
attributeName = attribute;
recordId = Id;
}
else if (attribute.Contains("contact"))
{
contact[attributeName] = fieldSum;
entityName = Contact.EntityLogicalName;
attributeName = attribute;
recordId = Id;
}
else
{
mainentity[attribute] = fieldSum;
entityName = mainEntity.EntityLogicalName;
attributeName = attribute;
recordId = Id;
}
formula.Attributes["ice_entity"] = entityName;
formula.Attributes["ice_attribute"] = attributeName;
formula.Attributes[entityName + "id"] = new EntityReference(entityName, recordId);
formula.Attributes["ice_computednote"] = computedNote.Remove(0, 1);
requestsCollection.Entities.Add(formula);
}
}
requestsCollection.Entities.Add(opportunity);
requestsCollection.Entities.Add(contact);
requestsCollection.Entities.Add(mainentity);
Values in both records could be as follows
Record 1
Price = 500
Quantity = 25
Revenue = 100
Sales = 10000
Volume = 0
Record 2
Price = 200
Quantity = 10
Revenue = 100
Sales = -10000
Volume = 0
Record 3 (Values after calculation that are to be updated in the third entity and Formula to be stored mentioned in brackets)
Price = 700 Formula = (500+200)
Quantity = 35 Formula = (25+10)
Revenue = 200 Formula =(100+100)
Sales = 0 Formula =(10000 + (-10000))
Volume = 0 No Formula to be created
I am checking if the fieldsum is not equal to zero (to update both positive and negative values) and then updating the values in the respective entity. However for values that became zero after the calculation. I also need to update them and create formula for the same. Avoiding the values that were zero by default.
As shown in above example, I want to update sales field value and create formula record for the same as '10000+-10000' but do not want volume field value to be updated or the formula to be created for it. How can i embed this logic in my code?
Add a flag (updateFormula) to indicate whether checksum and formula required to update in related entities. Then, instead of checking fieldSum != 0, check updateFormula is true to update the related records.
attributeList = { "price", "quantity", "contact.revenue", "opportunity.sales"}
foreach (var attribute in attributeList)
{
Decimal fieldSum = 0;
string computedNote = string.Empty;
bool updateFormula = false;
foreach (var entity in mainEntityList)
{
if (entity.Contains(attribute))
{
if (entity.Attributes[attribute] != null)
{
string type = entity.Attributes[attribute].GetType().Name;
Decimal attrValue = 0;
if (type == "AliasedValue")
{
AliasedValue aliasedFieldValue = (entity.GetAttributeValue<AliasedValue>(attribute));
attrValue = aliasedFieldValue.Value.GetType().Name == "Decimal" ? (Decimal)aliasedFieldValue.Value : (Int32)aliasedFieldValue.Value;
}
else
{
attrValue = entity.Attributes[attribute].GetType().Name == "Decimal" ? entity.GetAttributeValue<Decimal>(attribute) : entity.GetAttributeValue<Int32>(attribute);
}
fieldSum += attrValue;
computedNote += Convert.ToInt32(attrValue).ToString();
updateFormula = true;
}
}
else
{
computedNote += 0;
}
}
Entity formula = new Entity("formula");
if (updateFormula)
{
// Logic to update formula and checksum
}
}
Related
I have a table named industries. In this my fields are
workfor_id,
workfor_usr_id,
workfor_industry_id.
With the same values of workfor_id, I have different workfor_industry_id's.
foreach (var k in us){
var ind = dbContext.industries.Where(i => i.workfor_id ==
k.id).Select(i => i).FirstOrDefault();
string ind2 = k.industry;
var industryParts = ind2.Split(',');
var o = (industryParts.Length);
for (c = 0; c < o; c++){
ind.workfor_id = Convert.ToInt16(k.id);
ind.workfor_industry_id = Convert.ToInt16(k.industryid); }
}
To update workfor_industry_id field I have implemented inner loop inside the foreach loop to get the values of workfor_industry_id's.here same record is over loading with different workfor_industry_id's.
can you tell me how to implement this.
UPDATED
This update adds a little more error checking and assumes that -1 is never a valid value for industry_id
short GetShort(string value) {
short returnValue;
value = (value ?? string.Empty).Replace("\"",null);
return short.TryParse(value, out returnValue) ? returnValue : (short)-1;
}
foreach (var k in us){
var id=Convert.ToInt16(k.id);
var toRemove=from i in dbContext.industries
where i.workfor_id == k.id
select i;
var toAdd = from x in (k.industry ?? string.Empty).Split(',')
select new Industry {
workfor_id=id,
workfor_industry_id=GetShort(x)
};
dbContext.industries.DeleteAllOnSubmit(toRemove);
dbContext.industries.InsertAllOnSubmit(toAdd.Where(x=>x.workfor_industry_id != -1));
}
dbContext.SubmitChanges();
I have 2 objects (lists loaded from XML) report and database (showed bellow in code) and i should analyse them and mark items with 0, 1, 2, 3 according to some conditions
TransactionResultCode = 0; // SUCCESS (all fields are equivalents: [Id, AccountNumber, Date, Amount])
TransactionResultCode = 1; // Exists in report but Not in database
TransactionResultCode = 2; // Exists in database but Not in report
TransactionResultCode = 3; // Field [Id] are equals but other fields [AccountNumber, Date, Amount] are different.
I'll be happy if somebody could found time to suggest how to optimize some queries.
Bellow is the code:
THANK YOU!!!
//TransactionResultCode = 0 - SUCCESS
//JOIN on all fields
var result0 = from d in database
from r in report
where (d.TransactionId == r.MovementID) &&
(d.TransactionAccountNumber == long.Parse(r.AccountNumber)) &&
(d.TransactionDate == r.MovementDate) &&
(d.TransactionAmount == r.Amount)
orderby d.TransactionId
select new TransactionList()
{
TransactionId = d.TransactionId,
TransactionAccountNumber = d.TransactionAccountNumber,
TransactionDate = d.TransactionDate,
TransactionAmount = d.TransactionAmount,
TransactionResultCode = 0
};
//*******************************************
//JOIN on [Id] field
var joinedList = from d in database
from r in report
where d.TransactionId == r.MovementID
select new TransactionList()
{
TransactionId = d.TransactionId,
TransactionAccountNumber = d.TransactionAccountNumber,
TransactionDate = d.TransactionDate,
TransactionAmount = d.TransactionAmount
};
//Difference report - database
var onlyReportID = report.Select(r => r.MovementID).Except(joinedList.Select(d => d.TransactionId));
//TransactionResultCode = 1 - Not Found in database
var result1 = from o in onlyReportID
from r in report
where (o == r.MovementID)
orderby r.MovementID
select new TransactionList()
{
TransactionId = r.MovementID,
TransactionAccountNumber = long.Parse(r.AccountNumber),
TransactionDate = r.MovementDate,
TransactionAmount = r.Amount,
TransactionResultCode = 1
};
//*******************************************
//Difference database - report
var onlyDatabaseID = database.Select(d => d.TransactionId).Except(joinedList.Select(d => d.TransactionId));
//TransactionResultCode = 2 - Not Found in report
var result2 = from o in onlyDatabaseID
from d in database
where (o == d.TransactionId)
orderby d.TransactionId
select new TransactionList()
{
TransactionId = d.TransactionId,
TransactionAccountNumber = d.TransactionAccountNumber,
TransactionDate = d.TransactionDate,
TransactionAmount = d.TransactionAmount,
TransactionResultCode = 2
};
//*******************************************
var qwe = joinedList.Select(j => j.TransactionId).Except(result0.Select(r => r.TransactionId));
//TransactionResultCode = 3 - Transaction Results are different (Amount, AccountNumber, Date, )
var result3 = from j in joinedList
from q in qwe
where j.TransactionId == q
select new TransactionList()
{
TransactionId = j.TransactionId,
TransactionAccountNumber = j.TransactionAccountNumber,
TransactionDate = j.TransactionDate,
TransactionAmount = j.TransactionAmount,
TransactionResultCode = 3
};
you may try something like below:
public void Test()
{
var report = new[] {new Item(1, "foo", "boo"), new Item(2, "foo2", "boo2"), new Item(3, "foo3", "boo3")};
var dataBase = new[] {new Item(1, "foo", "boo"), new Item(2, "foo22", "boo2"), new Item(4, "txt", "rt")};
Func<Item, bool> inBothLists = (i) => report.Contains(i) && dataBase.Contains(i);
Func<IEnumerable<Item>, Item, bool> containsWithID = (e, i) => e.Select(_ => _.ID).Contains(i.ID);
Func<Item, int> getCode = i =>
{
if (inBothLists(i))
{
return 0;
}
if(containsWithID(report, i) && containsWithID(dataBase, i))
{
return 3;
}
if (report.Contains(i))
{
return 2;
}
else return 1;
};
var result = (from item in dataBase.Union(report) select new {Code = getCode(item), Item = item}).Distinct();
}
public class Item
{
// You need also to override Equals() and GetHashCode().. I omitted them to save space
public Item(int id, string text1, string text2)
{
ID = id;
Text1 = text1;
Text2 = text2;
}
public int ID { get; set; }
public string Text1 { get; set; }
public string Text2 { get; set; }
}
Note that you need to either implement Equals() for you items, or implement an IEqualityComparer<> and feed it to Contains() methods.
I have a DataTable which has the following structure.
StartDate (Type DateTime)
EndDate (Type DateTime)
Description (Type Text)
What I need to check is if the dates overlap or not, i.e., if the Start Date of 1 item is less than the EndDate of the previous item.
Here is the code I wrote.
NB: I already have checks to ensure that for each record, the Start Date has to be lesser than the End Date
dtDates.DefaultView.Sort = "StartDate ASC"; //Sort the DataTable based on the Start Dates
if(dtDates.Rows.Count > 1) //Check only if more than 1 Date is specified
{
for (int i = 1; i < dtDates.Rows.Count; i++)
{
if(TypeConvert.ToDate(dtDates.Rows[i]["StartDate"] < TypeConvert.ToDate(dtDates.Rows[i-1]["EndDate"])
{
retVal = true;
currentRow = i;
break;
}
}
}
The above code works fine.
But now, I want to implement it using LINQ
So, here is the code I am trying to attempt.
How can I do the whole comparison using LINQ?
public static bool CheckIfDatesOverlap(DataTable dataTable)
{
bool retVal = false;
int currentRow = 0;
List<DataRow> listDates = (from DataRow dgv in dataTable.Rows
select dgv).OrderBy(x => x[StartDate]).ToList();
if (listDates.Count > 1) //Perform Comparision only if more than 1 row is present
{
for (int i = 1; i < listDates.Count; i++)
{
if (TypeConvert.ToDateTime(listDates[i][StartDate]) < TypeConvert.ToDateTime(listDates[i][EndDate]))
{
retVal = true; //There are duplicates, hence return true
currentRow = i;
break;
}
else
{
//Do nothing as dates do not overlap
}
}
}
else
{
retVal = false; //As there is only 1 row, return false
}
if (retVal)
{
string message = "Dates Overlap";
//Display message
}
return retVal;
}
If you use SelectWithPrevious described here then you can write the following:
bool datesOverlap = table.Rows
.Cast<DataRow>()
.SelectWithPrevious((current, previous) => new
{
PreviousEndDate = (DateTime)previous["EndDate"],
StartDate = (DateTime)current["StartDate"]
})
.Any(x => x.StartDate < x.PreviousEndDate);
I would like to optimize following lines of code for Sorting.
public ViewResult Index(string sortorder, int? pagesize, int? page)
{
int pageSize = pagesize ?? 10;
if (Request.HttpMethod != "GET")
{
page = 1;
pageSize = 10;
}
ViewBag.SelectedPageSize = pageSize;
ViewBag.CurrentSort = sortorder;
ViewBag.FirstNameSortParm = String.IsNullOrEmpty(sortorder) ? "FirstName desc" : "";
ViewBag.LastNameSortParm = sortorder == "LastName" ? "LastName desc" : "LastName";
ViewBag.DepNameSortParm = sortorder == "depName" ? "depName desc" : "depName";
var joined = from tm in db.TabMasters select tm;
switch (sortorder)
{
case "FirstName":
joined = joined.OrderBy(m => m.FirstName);
break;
case "FirstName desc":
joined = joined.OrderByDescending(m => m.FirstName);
break;
case "LastName":
joined = joined.OrderBy(m => m.LastName);
break;
case "LastName desc":
joined = joined.OrderByDescending(m => m.LastName);
break;
case "depName":
joined = joined.OrderBy(m => m.depName);
break;
case "depName desc":
joined = joined.OrderByDescending(m => m.depName);
break;
default:
joined = joined.OrderBy(m => m.FirstName);
break;
}
int pageIndex = (page ?? 1) - 1;
int start = (pageIndex * pageSize);
ViewBag.TotalRecord = joined.Count();
ViewBag.StartRecord = start + 1;
ViewBag.EndRecord = ((start + pageSize) >= ViewBag.TotalRecord) ? ViewBag.TotalRecord : (start + pageSize);
return View(joined.ToPagedList(pageIndex, pageSize));
}
Because this is very tedious way if i have more the 10 fields to perform sort.
Thanks,
Imdadhusen
It's a bit vague to me what your actual goal is but for the switch part you could use an extension method as the below.
public static class SortExtensions
{
public static IEnumerable<T> SortByField<T>(this IEnumerable<T> sequence, string sortOrder)
{
var tokens = sortOrder.Trim().Split(' ');
var field = tokens[0];
var direction = tokens.Skip(1).Single().ToLower();
var prop = typeof(T).GetProperty(field);
return direction == "desc"
? sequence.OrderByDescending(m => prop.GetValue(m, null))
: sequence.OrderBy(m => prop.GetValue(m, null));
}
}
It will make a very simplified parsing of the sort order. It puts the responsibility on the calling party which is generally not what you want to do, so you might want some error handling in case the sortorder string does not fulfill the requirements.
from the sortorder string it fetches a name used to identify a property which can be used to fetch the value used for sorting.
you can use it like this:
db.TabMasters.SortByField(sortOrder)
EDIT based on comment:
The line typeof(T).GetProperty(field) is fragile in the absence of any error handling. It relies on the first token to be a name of a public property of the type T. It will return null if the name doesn't match a property. Including if it matches a Field name. A similar function exist for getting a FieldInfo
prop.GetField(field) will return a fieldinfo object of there's a public field with the given name otherwise null. To get the value of a field simply omit the last parameter to the GetValue call.
You should take a look at Linq.DynamicQuery.
There's more info in this blogpost http://weblogs.asp.net/scottgu/archive/2008/01/07/dynamic-linq-part-1-using-the-linq-dynamic-query-library.aspx
The library lets you write following code:
var query = northwind.Products
.Where("CategoryID = 3 AND UnitPrice > 3")
.OrderBy("SupplierID");
instead of
var query = from p in northwind.Products
where p.CategoryID == 3 && p.UnitPrice > 3
orderby p.SupplierID
select p;
If you want to add the sortdirection:
var query = northwind.Products.OrderBy("SupplierID Descending");
I have created a JTable, the table contains 4 rows, and for a specific row, I have overridden the sorting and its working fine only on that column.
Status Scheduled Date Scheduled time Status
false 30/01/2012 02:00:00 Scheduled
false 29/01/2012 14:58:00 Scheduled
false 29/01/2012 15:50:00 Scheduled
For Scheduled Date, which I try to sort, it would sort, but the respecitve rows are not being updated.
Here is my code for sorting
public static void sortColumn(DefaultTableModel model, int colIndex,
boolean sortingOrder) {
Vector<?> data = model.getDataVector();
Object[] colData = new Object[model.getRowCount()];
SortedSet<Object> dataCollected = null;
List<Date> dateCollected;
boolean dateFlag = false;
dateCollected = new ArrayList<Date>();
// Copy the column data in an array
for (int i = 0; i < colData.length; i++) {
Object tempData = ((Vector<?>) data.get(i)).get(colIndex);
if ((colIndex == 1 || colIndex == 4)
&& tempData.toString().contains("/")) {
String[] _scheduledDate1 = ((String) tempData).split("/");
Calendar _cal1 = Calendar.getInstance();
_cal1.set(Integer.parseInt(_scheduledDate1[2]),
Integer.parseInt(_scheduledDate1[1]) - 1,
Integer.parseInt(_scheduledDate1[0]));
dateCollected.add(_cal1.getTime());
dateFlag = true;
} else {
colData[i] = ((Vector<?>) data.get(i)).get(colIndex);
}
}
// DateCompare compare = new DateCompare();
if (!dateFlag) {
dataCollected = new TreeSet<Object>();
dataCollected.add(colData);
dateFlag = false;
}
// Copy the sorted values back into the table model
if ((colIndex == 1 || colIndex == 4) && dateFlag) {
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
sortOrder = !sortOrder;
if (sortOrder) {
Collections.sort(dateCollected);
} else {
Collections.sort(dateCollected, Collections.reverseOrder());
}
colData = dateCollected.toArray();
for (int i = 0; i < colData.length; i++) {
((Vector<Object>) data.get(i)).set(colIndex,
sdf.format(((Date) colData[i]).getTime()));
}
} else {
for (int i = 0; i < colData.length; i++) {
((Vector<Object>) data.get(i)).set(colIndex, colData[i]);
}
}
model.fireTableStructureChanged();
}
How to I get the entire row update accordingly?
I found the problem, my object against I was comparing was wrong, I've change the code for the same it all works fine.
I implemented QuickSort algorithm to sort the vector on the specific column I need.