Codes inside Weekly returns a value. But in Monthly it returns null.
I tried to run the query in my SQL Server Management Studio and it returns the correct result. But in my code, it returns null.
I tried to breakpoint and the item.JobId is = 2.
Here is my codes.
if (item.Frequency == "Weekly")
{
if (item.StartDate.DayOfWeek.ToString() == DateTime.Now.DayOfWeek.ToString())
{
var jobname = _context.Jobs.Where(x => x.Id == item.JobId).FirstOrDefault();
if (ModelState.IsValid)
{
jobs.Id = 0;
jobs.Job = jobname.Job;
jobs.ClientName = jobname.ClientName;
jobs.ClientId = jobname.ClientId;
jobs.JobRate = jobname.JobRate;
jobs.Status = "Active";
}
}
}
else if (item.Frequency == "Monthly")
{
if (item.StartDate.Day.ToString() == DateTime.Now.Day.ToString())
{
var jobname = _context.Jobs.Where(x => x.Id == item.JobId).FirstOrDefault();
var a = jobname.Job;
if (ModelState.IsValid)
{
jobs.Id = 0;
jobs.Job = jobname.Job;
jobs.ClientName = jobname.ClientName;
jobs.ClientId = jobname.ClientId;
jobs.JobRate = jobname.JobRate;
jobs.Status = "Active";
}
}
}
And here is my SQL Query
SELECT TOP (200) Id, Job, ClientName, ClientId, JobRate, Status
FROM Jobs
WHERE (Id = 2)
It should return some value in it.
Both inner expressions of the ifs(ones controlling item.StartDate) are identical, so your problem lies in these controls. Can you make sure your code evaluates true for below condition?
if (item.StartDate.Day.ToString() == DateTime.Now.Day.ToString())
Related
Lets say I have a table with a list of names, such as "a, b, c" and each name has several other values assigned (some of the other values can be assigned to several/all of names values, example below).
Table example:
( names - other ):
a - aa
a - ab
a - ac
b - ab
b - bb
b - cb
c - ac
c - bc
c - cc
How do I make in birt so that I could select names in one parameter box and get corresponding other values to select for another parameter? I know it's possible to do that with cascading parameter, but that doesn't allow to have multiselect for the first parameter, which in our example would be names values.
Found a solution partly here: https://forums.opentext.com/forums/developer/discussion/61283/allow-multi-value-for-cascading-parameter
and here (thanks google translate ^^): https://www.developpez.net/forums/d1402270/logiciels/solutions-d-entreprise/business-intelligence/birt/birt-4-3-1-multi-value-cascade-parameters/
Steps to do:
change"\birt\webcontent\birt\ajax\ui\dialog\BirtParameterDialog.js" file contents (there is a file to download for replacement in one of the links, but in case it goes dead I'm sharing 2 snippets from it where the changes occur:
__refresh_cascade_select : function( element )
{
var matrix = new Array( );
var m = 0;
for( var i = 0; i < this.__cascadingParameter.length; i++ )
{
for( var j = 0; j < this.__cascadingParameter[i].length; j++ )
{
var paramName = this.__cascadingParameter[i][j].name;
if( paramName == this.__isnull )
paramName = this.__cascadingParameter[i][j].value;
if( paramName == element.id.substr( 0, element.id.length - 10 ) )
{
//CHANGE//
//The two way work (String(selectedValue) or Array(SelectedValueArray))
var l = 0;
var isFirstElement = true;
var selectedValue = "";
var selectedValueArray = new Array();
for(var test = 0; test<element.options.length;test++){
if(element.options[test].selected){
if(isFirstElement){
isFirstElement = false;
selectedValue = element.options[test].value;
}
else{
selectedValue = selectedValue+","+element.options[test].value;
}
selectedValueArray[l] = element.options[test].value;
l++;
}
}
//CHANGE//
var tempText = element.options[element.selectedIndex].text;
var tempValue = element.options[element.selectedIndex].value;
// Null Value Parameter
if ( tempValue == Constants.nullValue )
{
this.__cascadingParameter[i][j].name = this.__isnull;
this.__cascadingParameter[i][j].value = paramName;
}
else if( tempValue == '' )
{
if( tempText == "" )
{
var target = element;
target = target.parentNode;
var oInputs = target.getElementsByTagName( "input" );
if( oInputs.length >0 && oInputs[1].value != Constants.TYPE_STRING )
{
// Only String parameter allows blank value
alert( birtUtility.formatMessage( Constants.error.parameterNotAllowBlank, paramName ) );
this.__clearSubCascadingParameter( this.__cascadingParameter[i], j );
return;
}
else
{
// Blank Value
this.__cascadingParameter[i][j].name = paramName;
this.__cascadingParameter[i][j].value = tempValue;
}
}
else
{
// Blank Value
this.__cascadingParameter[i][j].name = paramName;
this.__cascadingParameter[i][j].value = tempValue;
}
}
else
{
this.__cascadingParameter[i][j].name = paramName;
//CHANGE//
//The two way work (String(selectedValue) or Array(SelectedValueArray))
this.__cascadingParameter[i][j].value = selectedValueArray;
//CHANGE//
}
for( var m = 0; m <= j; m++ )
{
if( !matrix[m] )
{
matrix[m] = {};
}
matrix[m].name = this.__cascadingParameter[i][m].name;
matrix[m].value = this.__cascadingParameter[i][m].value;
}
this.__pendingCascadingCalls++;
birtEventDispatcher.broadcastEvent( birtEvent.__E_CASCADING_PARAMETER, matrix );
}
}
}
},
and this:
// exist select control and input text/password
// compare the parent div offsetTop
if( oFirstITC.parentNode && oFirstST.parentNode )
{
// Bugzilla 265615: need to use cumulative offset for special cases
// where one element is inside a group container
var offsetITC = Position.cumulativeOffset( oFirstITC );
var offsetST = Position.cumulativeOffset( oFirstST );
// compare y-offset first, then x-offset to determine the visual order
if( ( offsetITC[1] > offsetST[1] ) || ( offsetITC[1] == offsetST[1] && offsetITC[0] > offsetST[0] ) )
{
oFirstST.focus( );
}
else
{
oFirstITC.focus( );
}
}
After .js is changed cascading parameters can have multiselect on all levels.
Example:
1st DataSet "DS_country" query:
select CLASSICMODELS.OFFICES.COUNTRY
from CLASSICMODELS.OFFICES
2nd DataSet "DS_office" query:
select CLASSICMODELS.OFFICES.OFFICECODE
from CLASSICMODELS.OFFICES
where CLASSICMODELS.OFFICES.COUNTRY IN ('DS_country')
After datasets are created we can make cascading report parameters CRP_country and CRP_office (keep in mind that UI doesn't let you to choose "Allow multiple values" on the upper levels, but we can change that in property editor after the parameters are made by going to advanced tab and changing "Scalar parameter type" property value to "Multi Value")
The only thing left is to pick lower level cascading parameters (CRP_office in our example) and go to script tab and add this on "beforeOpen":
// Do that if your selections are in String type.
var stringArray = params["CRP_country"].value.toString().split(",");
var result = "";
for(var i =0 ; i < stringArray.length ; i++){
if(i==0){
result = "'"+stringArray[i]+"'";
}
else{
result = result+",'"+stringArray[i]+"'";
}
}
// For String
this.queryText = this.queryText.replace("'DS_country'", result);
//For integer (the first part is useless)
//this.queryText = this.queryText.replace("'DS_country'",
params["CRP_country"].value);
EF6, asp mvc core and SQL Server are used on the background.
I have to do many queries to the same table with different conditions, f.e.
SELECT COUNT(*) FROM Table1 WHERE a = true
SELECT COUNT(*) FROM Table1 WHERE b = true
SELECT COUNT(*) FROM Table1 WHERE a = true || b = true
SELECT a FROM Table1 WHERE b = true
So 4 queries to Table1 with different conditions. I think that as result I have to read the entire Table1 four times. In pseudo code it might be looking like this.
var res1 = new list();
foreach(var rec in Table1)
{
// read Table1 first time
if(rec.a == true)
{
res1.push(rec);
}
}
var res2 = new list();
foreach(var rec in Table1)
{
// read Table1 second time
if(rec.b == true)
{
res2.push(rec);
}
}
var res3 = new list();
foreach(var rec in Table1)
{
// read Table1 third time
if(rec.a == true || rec.b == true)
{
res3.push(rec);
}
}
var res4 = new list();
foreach(var rec in Table1)
{
// read Table1 fourth time
if(rec.b == true)
{
res4.push(rec);
}
}
I want to know how to read the Table1 only one time and get four different results, like this:
var res1 = new List();
var res2 = new List();
var res3 = new List();
var res4 = new list();
foreach(rec in Table1)
{
// read Table1 first time
if(a == true)
{
res1.push(rec);
}
if(b == true)
{
res2.push(rec);
}
if(a == true || b == true)
{
res3.push(rec);
}
if(b == true)
{
res4.push(rec);
}
}
Also the challenge, that those queries are dynamic sql, I mean that a = true, b = true, a = true || b = true are stored in database. And queries are running in this way:
string query = "SELECT Count(*) FROM Table1 WHERE" + condition;
var count = ExecuteSql(query);
The sample above is simplified, but in reality all the query is split and stored in database.
PS. Actually I want to speed up the page, which makes 30-40 requests to the server and each request is the query to the same table. I think if I can replace them with one request instead of 40 requests.
You may use conditional aggregation with just a single query:
SELECT
COUNT(CASE WHEN a = true THEN 1 END) AS cnt_a,
COUNT(CASE WHEN b = true THEN 1 END) AS cnt_b,
COUNT(CASE WHEN a = true OR b = true THEN 1 END) AS cnt_a_b
FROM Table1;
This would reduce the number of full table scans from 3 to just 1. Also, it would also potentially reduce the number of round trips to/from the database from 3 to 1.
I am trying to make a crud calendar in my .net, my question is, How do make the below entity framework codes to SQL queries?
[HttpPost]
public JsonResult SaveEvent(Event e)
{
var status = false;
using (MyDatabaseEntities dc = new MyDatabaseEntities())
{
if (e.EventID > 0)
{
//Update the event
var v = dc.Events.Where(a => a.EventID == e.EventID).FirstOrDefault();
if (v != null)
{
v.Subject = e.Subject;
v.Start = e.Start;
v.End = e.End;
v.Description = e.Description;
v.IsFullDay = e.IsFullDay;
v.ThemeColor = e.ThemeColor;
}
}
else
{
dc.Events.Add(e);
}
dc.SaveChanges();
status = true;
}
return new JsonResult { Data = new { status = status } };
}
http://www.dotnetawesome.com/2017/07/curd-operation-on-fullcalendar-in-aspnet-mvc.html
Thanks guys
You can run raw query in entity framework with dc.Database.ExecuteSqlCommand() command like below:
var status = false;
using (MyDatabaseEntities dc = new MyDatabaseEntities())
{
if (e.EventID > 0)
{
dc.Database.ExecuteSqlCommand(&#"
UPDATE Events
SET Subject = {e.Subject},
Start = {e.Start},
End = {End},
Description = {Description},
IsFullDay = {IsFullDay},
ThemeColor = {ThemeColor},
WHERE EventID = {e.EventID}
IF ##ROWCOUNT = 0
INSERT INTO Events (EventID, Subject, Start, End, Description, IsFullDay, ThemeColor)
VALUES ({e.EventID}, {e.Subject}, ...)
");
status = true;
}
return new JsonResult { Data = new { status = status }
};
int userId;
int follow = 0;
if (Session["userId"] != null)
{
userId = int.Parse(Session["userId"].ToString());
follow = Model.Follow.Count(x => x.EdenUserId == userId);
}
Error Code: Value cannot be null.
There exists some users who don't follow anybody so Count should be 0 but it returns null.
If user is following any user, table is populated without problem.
Can anyone please explain how can I count when there is a possibility that the lambda expression might return null?
Try:
int userId;
int follow = 0;
if (Session["userId"] != null)
{
userId = int.Parse(Session["userId"].ToString());
follow = Model.Follow.Count(x => x.EdenUserId == userId) == null? 0: Model.Follow.Count(x => x.EdenUserId == userId);
}
What I have done wrong in this code ? (I am using MVC4 and EF)
As an example: Please clear this am fresher to use MVC4
EditResponse response = new EditResponse();
try
{
using (WeMatchContext db = new WeMatchContext())
{
B_MEMBER_REGISTER update = new B_MEMBER_REGISTER();
var output = db.B_MEMBER_REGISTER.Where(x => x.MEMBER_ID == model.MEMBER_ID).FirstOrDefault();
if(output != null )
{
update.FIRST_NAME = model.FIRST_NAME;
update.LAST_NAME = model.LAST_NAME;
update.GENDER = model.GENDER;
update.DOB = model.DOB;
int resultcount = db.SaveChanges();
if (resultcount > 0)
{
response.MEMBER_ID = update.MEMBER_ID;
response.ResultCode = 0;
response.Message = "Updated Successfully";
}
You have to attach updated data with the db entity. please try this,
using (WeMatchContext db = new WeMatchContext())
{
var update = db.B_MEMBER_REGISTER.Where(x => x.MEMBER_ID == model.MEMBER_ID).FirstOrDefault();
if(update != null )
{
update.FIRST_NAME = model.FIRST_NAME;
update.LAST_NAME = model.LAST_NAME;
update.GENDER = model.GENDER;
update.DOB = model.DOB;
//below line of code is very important.
db.B_MEMBER_REGISTER.Attach(update);
db.Entry(update).State = EntityState.Modified;
int resultcount = db.SaveChanges();
if (resultcount > 0)
{
response.MEMBER_ID = update.MEMBER_ID;
response.ResultCode = 0;
response.Message = "Updated Successfully";
}
}
}