Order by number of entries linq - c#

I'm trying to filter and sort data from a table based on the number of entries in one column
| OrderID | DateOrdered | EnteredById | OtherData | OtherData2 |
-----------------------------------------------------------------------
| 1 | 2/2/2017 | 3 | asdf | sadfsf |
| 2 | 2/2/2017 | 4 | asdf | sadfsf |
| 3 | 2/3/2017 | 4 | asdf | sadfsf |
| 4 | 2/4/2017 | 3 | asdf | sadfsf |
| 5 | 2/4/2017 | 4 | asdf | sadfsf |
| 6 | 2/6/2017 | 5 | asdf | sadfsf |
This is a C# project, there is a working model set up for the table (Orders)
I need to use Linq with Entity to return an array of objects, the whole row, sorted by the number of orders entered by each EnteredById and only where there has been more than one entry by that EnteredById.
In the end, it should be:
| OrderID | DateOrdered | EnteredById | OtherData | OtherData2 |
-----------------------------------------------------------------------
| 2 | 2/2/2017 | 4 | asdf | sadfsf |
| 3 | 2/3/2017 | 4 | asdf | sadfsf |
| 5 | 2/4/2017 | 4 | asdf | sadfsf |
| 4 | 2/4/2017 | 3 | asdf | sadfsf |
| 1 | 2/2/2017 | 3 | asdf | sadfsf |
The code I've written is an absolute mess so I haven't posted it here. Does anybody have the secret Linq answer?

var result = objListOrder.GroupBy(o=>o.EnteredById).Where((x,groupid)=> x.Count()>1).SelectMany((x,groupid)=>x).OrderBy(o=>o.EnteredById);

Related

How can I add different examples with different columns in specflow examples

The following code is my Scenario:
Scenario: TradeOrders
Given Order 'SellOrder' Has Been Registerd
| Side | Price | Amount | IsFillAndKill | ExpireTime |
| 0 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 |
And Order 'BuyOrder' Has Been Defined
| Side | Price | Amount | IsFillAndKill | ExpireTime |
| <Buy> | <Price> | <Amount> | <IsFillAndKill> | <ExpireTime> |
When I Register The Order 'BuyOrder'
Then The following 'Trade' will be created
| BuyOrderId | SellOrderId | Amount | Price |
| <BuyOrderId> | <SellOrderId> | <TradeAmount> | <TradePrice> |
And BuyOrder 'BuyOrder' Should Be Modified like this
| Side | Price | Amount | IsFillAndKill | ExpireTime |
| 1 | 100 | 0 | false | 2024-02-05 09:30:26.2080000 |
Examples:
| Buy | Price | Amount | IsFillAndKill | ExpireTime |
| 1 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 |
Examples:
| <BuyOrderId> | <SellOrderId> | <TradeAmount> | <TradePrice> |
| 1 | 2 | 5 | 100 |
I want to add some examples with different columns but I have faced with below error:
Severity Code Description Project File Line Suppression State
Error Generation error: Message: The example sets must provide the
same parameters.
I appreciate you in advance.
This is not supported in SpecFlow. Since both tables are used in the same scenario, they need to go in the same row. It makes for a wide table, but there isn't anything you can do about it. Second of all, you cannot have < or > tokens in the column headers.
Examples:
| Buy | Price | Amount | IsFillAndKill | ExpireTime | BuyOrderId | SellOrderId | TradeAmount | TradePrice |
| 1 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 | 1 | 2 | 5 | 100 |
You can also put spaces in the column headers so they are easier to read:
Examples:
| Buy | Price | Amount | Is Fill And Kill | Expire Time | Buy Order Id | Sell Order Id | Trade Amount | Trade Price |
| 1 | 100 | 5 | false | 2024-02-05 09:30:26.2080000 | 1 | 2 | 5 | 100 |
The choice to include spaces in column headers is subjective. It is supported to aid readability, but feel free to omit spaces if this does not make the examples table easier to understand.

How to get all ids in LINQ which two columns dont have predefined values

I need to retrieve all Ids from two columns, which doesnt contain some other list.
For example:
If I have a variable:
I need to select List of rows in All notifications by DeliveryTypeId and NotificationGroupId where those IDs not contained in pair combination in selected notifications.
var selectedNotifications = _dbContext.UserNotificationTypeDeliveryChoice.Include(m => m.NotificationGroup)
.Include(m => m.DeliveryType)
.Where(m => m.UserDefId == userDefId && m.UserTypeId == (int)userType)
.Select(m => new NotificationGroup()
{
NotificationGroupId = m.NotificationGroup.NotificationGroupId,
Name = m.NotificationGroup.Name,
DefaultDeliveryType = new DeliveryType()
{
DeliveryTypeId = m.DeliveryType.DeliveryTypeId,
Name = m.DeliveryType.Name,
HasChoosen = true
}
}).ToList();
var selectedNotificationsMatchingIds = selectedNotifications.Select(n => new { n.NotificationGroupId, n.DefaultDeliveryType.DeliveryTypeId }).ToList();
and I need a condition witch will take all rows from db where is !contains.
example:
//NotificationGroup Codelist
+---------------------+-------------+-----------------------+
| NotificationGroupId | Name | DefaultDeliveryTypeId |
+=====================+=============+=======================+
| 1 | Comments | 1 |
+---------------------+-------------+-----------------------+
| 2 | QA | 1 |
+---------------------+-------------+-----------------------+
| 3 | Services | 1 |
+---------------------+-------------+-----------------------+
| 4 | eScheduling | 1 |
+---------------------+-------------+-----------------------+
| 5 | eDelivery | 2 |
+---------------------+-------------+-----------------------+
//Delivery Type Codelist
+----------------+-----------------+
| DeliveryTypeId | Name |
+================+=================+
| 1 | SMS |
+----------------+-----------------+
| 2 | Email |
+----------------+-----------------+
| 3 | PortalMessaging |
+----------------+-----------------+
//SELECTED NOTIFICATIONS
+--------------------------------------+-----------+----------------------------+---------------------+----------------+------------+
| UserNotificationTypeDeliveryChoiceId | UserDefID | UserCompanyOrInstitutionId | NotificationGroupId | DeliveryTypeId | UserTypeId |
+======================================+===========+============================+=====================+================+============+
| 269 | 2933 | NULL | 1 | 2 | 1 |
+--------------------------------------+-----------+----------------------------+---------------------+----------------+------------+
| 270 | 2933 | NULL | 2 | 2 | 1 |
+--------------------------------------+-----------+----------------------------+---------------------+----------------+------------+
| 271 | 2933 | NULL | 3 | 2 | 1 |
+--------------------------------------+-----------+----------------------------+---------------------+----------------+------------+
| 272 | 2933 | NULL | 4 | 2 | 1 |
+--------------------------------------+-----------+----------------------------+---------------------+----------------+------------+
| 273 | 2933 | NULL | 4 | 1 | 1 |
+--------------------------------------+-----------+----------------------------+---------------------+----------------+------------+
//ALL NOTIIFICATIONS
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| NotificationGroupUserTypeId | NotificationGroupChangeTypeId | UserTypeId | NotificationGroupId | NotificationTemplateId | DateCreated | DeliveryTypeId |
+=============================+===============================+============+=====================+========================+=========================+================+
| 1 | NULL | 1 | 1 | 14 | NULL | 1 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 6 | 11 | 1 | 4 | 21 | 2011-07-18 11:13:23.543 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 17 | NULL | 1 | 4 | 6 | NULL | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 26 | NULL | 1 | 3 | 8 | NULL | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 30 | 11 | 1 | 4 | 15 | 2011-07-17 13:16:36.897 | 1 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 31 | 14 | 1 | 4 | 16 | 2011-07-17 13:17:00.880 | 1 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 32 | 15 | 1 | 4 | 17 | 2011-07-17 13:17:18.220 | 1 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 33 | 16 | 1 | 4 | 18 | 2011-07-17 13:17:34.833 | 1 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 34 | 17 | 1 | 4 | 19 | 2011-07-17 13:17:58.337 | 1 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 35 | 18 | 1 | 4 | 20 | 2011-07-17 13:18:35.960 | 1 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 36 | 14 | 1 | 4 | 22 | 2011-07-18 16:00:27.320 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 37 | 15 | 1 | 4 | 23 | 2011-07-18 16:01:17.843 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 38 | 16 | 1 | 4 | 24 | 2011-07-18 16:01:36.300 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 39 | 17 | 1 | 4 | 25 | 2011-07-18 16:01:55.923 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 40 | 18 | 1 | 4 | 26 | 2011-07-18 16:02:12.607 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 41 | 8 | 1 | 3 | 27 | 2011-11-09 12:59:51.307 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 44 | 19 | 1 | 3 | 28 | 2011-12-21 14:57:31.780 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 48 | 20 | 1 | 5 | 29 | 2011-12-23 10:19:16.840 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
| 49 | 1 | 1 | 3 | 6 | 2011-12-22 16:09:15.047 | 2 |
+-----------------------------+-------------------------------+------------+---------------------+------------------------+-------------------------+----------------+
So I am getting in selectedNotifications correct pairs, but then when I try to filter my new query, I m getting only two pairs but I should get it (with these example):
var notSelectedNotifications = _dbContext.NotificationGroupUserType.Include(m => m.DeliveryType)
.Include(m => m.NotificationGroup)
.Where(m => m.UserTypeId == (int)userType)
.Where(m => !selectedNotificationsMatchingIds.Contains(new { m.NotificationGroup.NotificationGroupId, m.DeliveryType.DeliveryTypeId }))
.Select(m => new NotificationGroup()
{
NotificationGroupId = m.NotificationGroupId,
Name = m.NotificationGroup.Name,
DefaultDeliveryType = new DeliveryType()
{
DeliveryTypeId = m.DeliveryType.DeliveryTypeId,
Name = m.DeliveryType.Name,
HasChoosen = false
}
}).ToList();
Any advise is welcomed. If someone can tell me, how to get all of these which is not selected in selectedNotificationsMatchingIds
The Contains() method usage default equality comparer when implementation of IEqualityComparer<T> is not provided for element stored in collection. Obviously the default equality comparer will not work for element of Anonymous class stored in selectedNotificationsMatchingIds.
You have two options:
Option 1: Re-write Where condition to use Any as:
//.Where(m => !selectedNotificationsMatchingIds
// .Contains(new { m.NotificationGroup.NotificationGroupId,
// m.DeliveryType.DeliveryTypeId }))
.Where(m => !selectedNotificationsMatchingIds
.Any(c => c.NotificationGroup.NotificationGroupId == m.NotificationGroupId
&& c.DeliveryTypeId == m.DeliveryType.DeliveryTypeId))
Option 2: Create a class having properties for NotificationGroupId and DeliveryTypeId and implement IEqualityComparer<T> interface for it. Then only you can use object of that class as part of .Contains() method.

How to query the sum of each person's availability base on their skill

I'm using sqlite, I've setup three tables.
Table for list of skills this can be expand.
+----+----------+
| ID | Skills |
+----+----------+
| 1 | Swimming |
| 2 | Running |
| 3 | Boxing |
| 4 | Dancing |
| 5 | Singing |
+----+----------+
Table for availability of each person. 0 represents the person is not available.
+-------+-----+-----+-----+-----+-----+-----+-----+
| Names | SUN | MON | TUE | WED | THU | FRI | SAT |
+-------+-----+-----+-----+-----+-----+-----+-----+
| Mark | 0 | 1 | 1 | 1 | 1 | 1 | 0 | (MON-FRI)
| Robin | 0 | 1 | 1 | 1 | 1 | 1 | 0 | (MON-FRI)
| James | 0 | 0 | 1 | 1 | 1 | 1 | 1 | (TUE-SAT)
+-------+-----+-----+-----+-----+-----+-----+-----+
Table for each person skill possess. 1/0 is a boolean value.
+-------+----------+---------+--------+---------+---------+
| Names | Swimming | Running | Boxing | Dancing | Singing |
+-------+----------+---------+--------+---------+---------+
| Mark | 1 | 1 | 1 | 1 | 1 |
| Robin | 1 | 1 | 1 | 1 | 1 |
| James | 1 | 1 | 1 | 1 | 0 |
+-------+----------+---------+--------+---------+---------+
By using the tables above how could I achieved this result to sum each person's availability base on their skill.
Expected Results:
+----------+-----+-----+-----+-----+-----+-----+-----+
| Skills | SUN | MON | TUE | WED | THU | FRI | SAT |
+----------+-----+-----+-----+-----+-----+-----+-----+
| Swimming | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Running | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Boxing | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Dancing | 0 | 2 | 3 | 3 | 3 | 3 | 1 |
| Singing | 0 | 2 | 3 | 3 | 3 | 3 | 0 |
+----------+-----+-----+-----+-----+-----+-----+-----+

Approach to read a text file [closed]

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I have a predefined List<string> Wellnames = new List<string>(){"CAM1","CAM2","CAM3"};
I have a text file, which is always in the same format as shown. How do I extract/read the highlighted numbers in the example? i,e. for CAM1 and similarly for CAM2 and CAM3.
here is the excerpt of the file:
1------------------------------------------------------------------------------------------------------------------------------913
ALLOC Allocation/bundle report 10835.0000 Days report step 228, 1 Sep 2015
------------------------------------------------------------------------------------------------------------------------------
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Streamline | | | | | | |
| Bundle | | Surface Rate | Surface Volumes | | | |
|------------------------| Flow |-----------------------------------------------------------------------------------------------------------| Total Reservoir | Pore |PV weighted|
| Start | End | Direct | Oil | Water | Gas | Oil | Water | Gas | Rate | Volume | Pressure |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | SM3/D | Fraction | SM3/D | Fraction | SM3/D | Fraction | SM3 | SM3 | SM3 | RM3/D | Fraction | RM3 | Bar |
| |-----------------------------------------------------------------------------------------------------------------------------------------------------------|
| CAM1 | | 9.13e-001 | | 3.14e+001 | | 9.13e-001 | | 7.55e+004 | 1.50e+005 | 7.55e+004 | 3.26e+001 | 1.06e+000 | 2.29e+005 | 6.21e+001 |
| CAM1 CAM138 | Outflow | 2.82e-001 | 3.09e-001 | 9.63e+000 | 3.07e-001 | 2.82e-001 | 3.09e-001 | 1.99e+004 | 3.88e+004 | 1.99e+004 | 1.00e+001 | 3.07e-001 | 5.96e+004 | 6.17e+001 |
| CAM1 CAM255 | Outflow | 3.34e-002 | 3.66e-002 | 3.00e+000 | 9.57e-002 | 3.34e-002 | 3.66e-002 | 1.86e+004 | 4.05e+004 | 1.86e+004 | 3.07e+000 | 9.40e-002 | 6.00e+004 | 6.30e+001 |
| CAM1 CAM177 | Outflow | 2.12e-001 | 2.32e-001 | 1.10e+001 | 3.50e-001 | 2.12e-001 | 2.32e-001 | 1.94e+004 | 3.66e+004 | 1.94e+004 | 1.13e+001 | 3.46e-001 | 5.68e+004 | 6.13e+001 |
| CAM1 CAM582 | Outflow | 3.17e-001 | 3.47e-001 | 5.72e+000 | 1.82e-001 | 3.17e-001 | 3.47e-001 | 7.77e+003 | 1.33e+004 | 7.77e+003 | 6.10e+000 | 1.87e-001 | 2.14e+004 | 6.13e+001 |
| CAM1 CAM354 | Outflow | 6.87e-002 | 7.53e-002 | 2.05e+000 | 6.53e-002 | 6.87e-002 | 7.53e-002 | 9.80e+003 | 2.04e+004 | 9.80e+003 | 2.14e+000 | 6.56e-002 | 3.07e+004 | 6.34e+001 |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
this Regex will get you what you need.
#"\|\s+CAM1\s+(\S+)\s+\|\s+\S+\s+\|\s+(\S+)\s+\|\s+\S+\s+\|\s+(\S+)\s+\|\s+\S+\s+\|\s+(\S+)"
just change CAM1 for what you are looking for.
I put together an example for you here
I'm assuming you know how to read the file line-by-line. Once you have a particular data line in a string, you can use the Split() method on the '|' character. You'll get back a zero-based array, with each element holding the data from one column. Index into the array at index 0 and trim the value to check for your identifier CAM1, etc. If it's the one you want, you can grab the other values from their indexes in the array.
Seems like the simplest approach given the rigid data format.
IMO the best approach for solving this, is to iterate the file line by line using a StreamReader and then parsing out the necessary information.
public dynamic Read(string file)
{
using (var streamReader = new StreamReader(File.OpenRead(file))
{
while ((var line = streamReader.ReadLine()) != null)
{
if (line.StartsWith("| CAM", StringComparison.OrdinalIgnoreCase))
{
var columns = line.Split('|').Select(x => x.Trim());
// Parse the values here, put them in a DTO
}
}
}
}

MySQL Query to retrieve data from two tables even no data found and unique column in both tables

I have two tables.
Menu
+----------------+----------------+
| menu_id | menu_desc |
+----------------+----------------+
| 1 | menu1 |
| 2 | menu2 |
| 3 | menu3 |
| 4 | menu4 |
| 5 | menu5 |
+----------------+----------------+
Rights
+----------+--------------+---------+
| Role_id | menu_id | Rights |
+----------+--------------+---------+
| 1 | 1 | 3 |
| 1 | 2 | 3 |
| 1 | 3 | 3 |
+----------+--------------+---------+
I want the output something like this,
+----------+------------------+------------+-----------+
| menu_id | menu_desc | Role_id | Rights |
+----------+------------------+------------+-----------+
| 1 | menu1 | 1 | 3 |
| 2 | menu2 | 1 | 3 |
| 3 | menu3 | 1 | 3 |
| 4 | menu4 | 1 | null |
| 5 | menu5 | 1 | null |
+----------+------------------+------------+-----------+
Is it possible?
This gives NULL for both Role_id and Rights
SELECT Menu.menu_id, Menu.menu_desc, Role.Role_id, Role.Rights
FROM Menu LEFT OUTER JOIN Role ON Menu.menu_id=Role.menu_id
ORDER BY Menu.menu_id
try below, if not getting required results then share problem:
SELECT m.menu_id, m.menu_desc, r.Role_id, r. Rights FROM Menu m LEFT JOIN `Rights` r ON m.menu_id=r.menu_id order by m.menu_id;
You have to use join:
select Menu.menu_id, menu_desc, Role_id, Rights.menu_id, Rights.Rights from Menu join Rights on Menu.menu_id=Rights.menu_id;

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