I have a sql code like this,
SELECT *,
(Select Count(PostID) FROM Likes Where Likes.PostID = Posts.PostID) AS Likes,
(Select Count(PostID) FROM Comments WHERE Comments.PostID = Posts.PostID) AS Comments
FROM Posts
But I need to write this code with EntityFramework 5. How can i write this code?
Thanks.
from post in Posts
select new
{
Post = post,
Likes = (from like in Likes where like.PostID == post.PostID select like).Count(),
Comments = (from comment in Comments where comment.PostID = post.PostID select post).Count()
}
Related
I am basically trying to run a query that gives me all the Users that have purchased a product with a particular SKU. Essentially this SQL here:
SELECT u.FirstName, u.LastName, u.Email
FROM COM_OrderItem oi INNER JOIN COM_Order o ON oi.OrderItemOrderID = o.OrderID
INNER JOIN COM_Customer c ON o.OrderCustomerID = c.CustomerID
INNER JOIN CMS_User u ON c.CustomerUserID = u.UserID
WHERE oi.OrderItemSKUID = 1013
I was trying to use the ObjectQuery API to try and achieve this but have no idea how to do this. The documentation here does not cover the specific type of scenario I am looking for. I came up with this just to try and see if it works but I don't get the three columns I am after in the result:
var test = OrderItemInfoProvider
.GetOrderItems()
.Source(orderItems => orderItems.Join<OrderInfo>("OrderItemOrderID", "OrderID"))
.Source(orders => orders.Join<CustomerInfo>("OrderCustomerID", "CustomerID"))
.Source(customers => customers.Join<UserInfo>("CustomerUserID", "UserID"))
.WhereEquals("OrderItemSKUID", 1013).Columns("FirstName", "LastName", "Email").Result;
I know this is definitely wrong and I would like to know the right way to achieve this. Perhaps using ObjectQuery is not the right approach here or maybe I can somehow just use raw SQL. I simply don't know enough about Kentico to understand the best approach here.
Actually, the ObjectQuery you created is correct. I tested it and it is providing the correct results. Are you sure that there are indeed orders in the system, which contain a product with SKUID 1013 (you can check that in the COM_OrderItem database table)?
Also, how are you accessing the results? Iterating through the results should look like this:
foreach (DataRow row in test.Tables[0].Rows)
{
string firstName = ValidationHelper.GetString(row["FirstName"], "");
string lastName = ValidationHelper.GetString(row["LastName"], "");
string email = ValidationHelper.GetString(row["Email"], "");
}
I'm trying the standard SELECT ... AS call to rename a column in query output with the Python Salesforce API and it's throwing following error:
... unexpected token: 'AS'", 'errorCode': 'MALFORMED_QUERY'}
So far most native language calls from SOQL have been working in the API and it seems, from here, that SELECT ... AS is valid SOQL.
Query outline:
from simple_salesforce import Salesforce
sf = Salesforce(username=myusername, password=mypassword, security_token=mytoken)
query = "select closedate as Date from opportunity"
query_list = sf.query_all(query)['records']
edit
error remains even after putting the new column name within quotes as advised in above link:
query = "select closedate as \"Date\" from Opportunity"
Thanks
As Terminus mentioned, SOQL field aliasing is not possible in SOQL in most contexts, including yours. The only case in which I have seen aliasing working in SOQL is in aggregate queries. For example, in apex you could write:
AggregateResult myResult = [SELECT count(Id) SpecialName FROM Contact];
system.debug(myResult);
and receive the result:
DEBUG|AggregateResult:{SpecialName=1630}
In python via simple-salesforce it would look like this:
sf.query_all('SELECT count(Id) SpecialName FROM Contact')
with the result:
OrderedDict([('totalSize', 1),
('done', True),
('records',
[OrderedDict([('attributes',
OrderedDict([('type', 'AggregateResult')])),
('SpecialName', 6587)])])])
Please mark as answered if this answer your question.
The syntax seems to be incorrect.
Try query = "select closedate <insert alias> from Opportunity" according to the alias notation documented here : https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_alias.htm
I am trying to get documents of given type with assigned category. This is my code:
var inCategoryDocuments = DocumentHelper.GetDocuments("XYZ.MyType").InCategories("CategoryCodeName");
It's result with this query:
SELECT * FROM View_CMS_Tree_Joined AS V WITH (NOLOCK, NOEXPAND) INNER JOIN xyz_MyType AS C WITH (NOLOCK) ON [V].[DocumentForeignKeyValue] = [C].[MyTypeID] AND V.ClassName = N'xyz.MyType' LEFT OUTER JOIN COM_SKU AS S WITH (NOLOCK) ON [V].[NodeSKUID] = [S].[SKUID] WHERE ([DocumentCulture] = N'en-EN' AND 0 = 1)
It looks like this API method (.InCategories()) doing nothing or I am missing something?
Kentico v11.0.26
Is this category assigned to specific site? If so, it wouldn't work, because in your query you didn't specify the site from which you want get documents.
You can simply add
.OnCurrentSite()
to your DataQuery, it will look like this
var inCategoryDocuments = DocumentHelper.GetDocuments("XYZ.MyType").OnCurrentSite().InCategories("CategoryCodeName");
It will retrieve the documents from the current website based on domain.
IMO method .InCategory shouldn't take care about site or it should be parametrized.
You need to include the using statement for it to work because those methods are extensions.
using CMS.DocumentEngine;
I'm attempting to export data from an older Orchard db and am having problems finding which table the content of a blog post is stored. I've tried using a number of different 'Search all columns' spocs to search all tables and columns but am not finding text from the post itself.
If I have a blog post where the opening sentence is:
This sentence contains a unique word.
I would have expected at least one of the various 'Search all columns' examples to have turned up a table/column. But so far, none have.
thx
Orchard store data based on two tables, ContentItemRecord and ContentItemVersionRecord, which store meta data for content items like BlogPost, and these content items built from multiple parts, each part has it's table and the relation between the item and it's parts is based on Id (if not draftable) or ContentItemRecord_Id (if draftable) columns
if we take BlogPost type as example, which built from TitlePart, BodyPart, AutoroutePart and CommonPart, and you want to select all the data of post (id = 90), then you can find it's title in TitlePartRecord table (ContentItemRecord_Id = 90), and the body text of it in BodyPartRecord table with same relation as title part record, and the route part in AutorouteRecord table with same relation, and the common meta data in CommonPartRecord (Id = 90).
This is the way to extract data from Orchard database, hope this will help you.
Tnx to #mdameer...
and the related query of madmeer's answer is this:
SELECT * FROM dbo.default_Title_TitlePartRecord
inner join dbo.default_Orchard_Framework_ContentItemRecord on
dbo.default_Title_TitlePartRecord.ContentItemRecord_id=dbo.default_Orchard_Framework_ContentItemRecord.Id
inner join dbo.default_Common_BodyPartRecord on
dbo.default_Common_BodyPartRecord.ContentItemRecord_id=dbo.default_Orchard_Framework_ContentItemRecord.Id
where dbo.default_Title_TitlePartRecord.ContentItemRecord_id=90
and this is the rightsolution
Just in case it may be useful for others, the following is the actual SQL query used to migrate an Orchard instance to Umbraco. It is derived from the excellent answers by mdameerand and Iman Salehi:
SELECT t.Title, f.Data, b.Text FROM dbo.Title_TitlePartRecord t
inner join dbo.Orchard_Framework_ContentItemRecord f on
t.ContentItemRecord_id=f.Id
inner join dbo.Common_BodyPartRecord b on
b.ContentItemRecord_id=f.Id
AND b.Id = (
SELECT MAX(m2.Id)
FROM dbo.Common_BodyPartRecord m2
WHERE m2.ContentItemRecord_id = f.Id
)
AND t.Id = (
SELECT MAX(m2.Id)
FROM dbo.Title_TitlePartRecord m2
WHERE m2.ContentItemRecord_id = f.Id
)
How can I do the following query in subsonic 2.2
select Table1.Id, Table1.Name, Table1.Age from Table1
where Table1.Id =
(
select Max(T.Id) from Table1 T
Where T.Age = 20
)
Can one can provide me with example.
Thanks.
nRk
Subsonic 2.2 can do sub-queries:
As Adam suggested, editted and improved example using In, this works for me:
SubSonic.Select s = new SubSonic.Select(SSDAL.Customer.CustomerIDColumn, SSDAL.Customer.NameColumn);
SubSonic.Aggregate a = new SubSonic.Aggregate(SSDAL.Customer.CustomerIDColumn, SubSonic.AggregateFunction.Max);
SSDAL.CustomerCollection COL = new SSDAL.CustomerCollection();
SubSonic.Select sq = new SubSonic.Select("LastCustomerId");
sq.Aggregates.Add(a);
sq.From(Tables.Customer);
a.Alias = "LastCustomerId";
s.From(Tables.Customer);
s.Where(SSDAL.Customer.CustomerIDColumn).In(sq);
COL = s.ExecuteAsCollection<SSDAL.CustomerCollection>();
;
This code produces the following SQL:
SELECT [dbo].[Customer].[CustomerID], [dbo].[Customer].[Name]
FROM [dbo].[Customer]
WHERE [dbo].[Customer].[CustomerID] IN (SELECT MAX([dbo].[Customer].[CustomerID]) AS 'LastCustomerId'
FROM [dbo].[Customer])
Adam may be onto something but it looks a little ugly. Here is an example that is a bit more readable that returns an IDataReader
new SubSonic.Select(Table1.IdColumn,Table1.NameColumn,Table1.AgeColumn)
.From(Table1.Schema)
.Where(Table1.IdColumn).In(new SubSonic.Select(Aggregate.Max(Table1.IdColumn)).From(Table1.Schema))
.ExecuteReader();
As far as I know there is no support for subqueries in SubSonic. You'll need to put the query in a sproc and use the generated SPs.SprocName() method.
EDIT: I was wrong, see other answer below.