Joining same table multiple times in ServiceStack.OrmLite
When joining a table to itself, the sql statment generated does not reference the tables correctly.
It's working when the "main" table is different from the joining table https://github.com/ServiceStack/ServiceStack.OrmLite#join-aliases
Class
public class Page
{
public string ActivityId { get; set; }
public int DefinitionId { get; set; }
public int PageId { get; set; }
}
Code
using (var db = connection.Open())
{
var sql = db.From<Page>()
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.JoinAlias("p2"))
.Select<Page>(p => new {
String = Sql.JoinAlias(p.ActivityId, "p2")
});
}
SQL statement
p1.DefinitionId == 349 and p1.ActivityId == "a633326227969545457", these should not refer to p2
SELECT p2."ActivityId" AS String
FROM "Page" INNER JOIN "Page" p2 ON (
((("p2"."DefinitionId" = 349)
AND ("p2"."ActivityId" = 'a633326227969545457'))
AND ("p2"."PageId" = "p2"."PageId"))
AND ("p2"."DefinitionId" = 340))
Is it a bug or am I missing something here?
ormlite-servicestack asked Nov 22 at 18:23
Kai-Rune
333413
add a comment |
When joining a table to itself, the sql statment generated does not reference the tables correctly.
It's working when the "main" table is different from the joining table https://github.com/ServiceStack/ServiceStack.OrmLite#join-aliases
Class
public class Page
{
public string ActivityId { get; set; }
public int DefinitionId { get; set; }
public int PageId { get; set; }
}
Code
using (var db = connection.Open())
{
var sql = db.From<Page>()
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.JoinAlias("p2"))
.Select<Page>(p => new {
String = Sql.JoinAlias(p.ActivityId, "p2")
});
}
SQL statement
p1.DefinitionId == 349 and p1.ActivityId == "a633326227969545457", these should not refer to p2
SELECT p2."ActivityId" AS String
FROM "Page" INNER JOIN "Page" p2 ON (
((("p2"."DefinitionId" = 349)
AND ("p2"."ActivityId" = 'a633326227969545457'))
AND ("p2"."PageId" = "p2"."PageId"))
AND ("p2"."DefinitionId" = 340))
Is it a bug or am I missing something here?
ormlite-servicestack asked Nov 22 at 18:23
Kai-Rune
333413
add a comment |
When joining a table to itself, the sql statment generated does not reference the tables correctly.
It's working when the "main" table is different from the joining table https://github.com/ServiceStack/ServiceStack.OrmLite#join-aliases
Class
public class Page
{
public string ActivityId { get; set; }
public int DefinitionId { get; set; }
public int PageId { get; set; }
}
Code
using (var db = connection.Open())
{
var sql = db.From<Page>()
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.JoinAlias("p2"))
.Select<Page>(p => new {
String = Sql.JoinAlias(p.ActivityId, "p2")
});
}
SQL statement
p1.DefinitionId == 349 and p1.ActivityId == "a633326227969545457", these should not refer to p2
SELECT p2."ActivityId" AS String
FROM "Page" INNER JOIN "Page" p2 ON (
((("p2"."DefinitionId" = 349)
AND ("p2"."ActivityId" = 'a633326227969545457'))
AND ("p2"."PageId" = "p2"."PageId"))
AND ("p2"."DefinitionId" = 340))
Is it a bug or am I missing something here?
ormlite-servicestack asked Nov 22 at 18:23
Kai-Rune
333413
When joining a table to itself, the sql statment generated does not reference the tables correctly.
It's working when the "main" table is different from the joining table https://github.com/ServiceStack/ServiceStack.OrmLite#join-aliases
Class
public class Page
{
public string ActivityId { get; set; }
public int DefinitionId { get; set; }
public int PageId { get; set; }
}
Code
using (var db = connection.Open())
{
var sql = db.From<Page>()
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.JoinAlias("p2"))
.Select<Page>(p => new {
String = Sql.JoinAlias(p.ActivityId, "p2")
});
}
SQL statement
p1.DefinitionId == 349 and p1.ActivityId == "a633326227969545457", these should not refer to p2
SELECT p2."ActivityId" AS String
FROM "Page" INNER JOIN "Page" p2 ON (
((("p2"."DefinitionId" = 349)
AND ("p2"."ActivityId" = 'a633326227969545457'))
AND ("p2"."PageId" = "p2"."PageId"))
AND ("p2"."DefinitionId" = 340))
Is it a bug or am I missing something here?
ormlite-servicestack ormlite-servicestack asked Nov 22 at 18:23
Kai-Rune
333413
asked Nov 22 at 18:23
Kai-Rune
333413
edited Nov 22 at 22:54
asked Nov 22 at 18:23
Kai-Rune
333413
asked Nov 22 at 18:23
Kai-Rune
333413
asked Nov 22 at 18:23
Kai-Rune
333413
333413
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
In order to be able to use an alias on the source table you would need to set a table alias which wasn't supported until now with this commit.
You can now use the new db.TableAlias() API (which is now preferable over JoinAlias()) on both the source table as well as any join tables, e.g:
var q = db.From<Page>(db.TableAlias("p1"))
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.TableAlias("p2"))
.Select<Page>(p => new {
String = Sql.TableAlias(p.ActivityId, "p2")
});
var rows = db.Select(q);
This change is available from v5.4.1 that's now available on MyGet.
answered Nov 23 at 17:57
mythz
117k14193333
mythz I am using 5.4.1 and I get the error. 'TableOptions' does not contain a definition for 'Select' and the best extension method overload 'OrmLiteReadApi.Select<Company>(IDbConnection, string)' requires a receiver of type 'IDbConnection'
– Steve Coleman
Dec 7 at 23:04
@SteveColeman sounds like your code is wrong, db.TableAlias() is only an argument and .Select() should only be called on the SqlExpression not TableAlias(). You can check out the commit for more usage examples.
– mythz
Dec 8 at 2:44
:-( ... I was missing a ) It was a long day of coding. Thanks for the response.
– Steve Coleman
Dec 9 at 16:33
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
In order to be able to use an alias on the source table you would need to set a table alias which wasn't supported until now with this commit.
You can now use the new db.TableAlias() API (which is now preferable over JoinAlias()) on both the source table as well as any join tables, e.g:
var q = db.From<Page>(db.TableAlias("p1"))
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.TableAlias("p2"))
.Select<Page>(p => new {
String = Sql.TableAlias(p.ActivityId, "p2")
});
var rows = db.Select(q);
This change is available from v5.4.1 that's now available on MyGet.
answered Nov 23 at 17:57
mythz
117k14193333
mythz I am using 5.4.1 and I get the error. 'TableOptions' does not contain a definition for 'Select' and the best extension method overload 'OrmLiteReadApi.Select<Company>(IDbConnection, string)' requires a receiver of type 'IDbConnection'
– Steve Coleman
Dec 7 at 23:04
@SteveColeman sounds like your code is wrong, db.TableAlias() is only an argument and .Select() should only be called on the SqlExpression not TableAlias(). You can check out the commit for more usage examples.
– mythz
Dec 8 at 2:44
:-( ... I was missing a ) It was a long day of coding. Thanks for the response.
– Steve Coleman
Dec 9 at 16:33
add a comment |
In order to be able to use an alias on the source table you would need to set a table alias which wasn't supported until now with this commit.
You can now use the new db.TableAlias() API (which is now preferable over JoinAlias()) on both the source table as well as any join tables, e.g:
var q = db.From<Page>(db.TableAlias("p1"))
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.TableAlias("p2"))
.Select<Page>(p => new {
String = Sql.TableAlias(p.ActivityId, "p2")
});
var rows = db.Select(q);
This change is available from v5.4.1 that's now available on MyGet.
answered Nov 23 at 17:57
mythz
117k14193333
mythz I am using 5.4.1 and I get the error. 'TableOptions' does not contain a definition for 'Select' and the best extension method overload 'OrmLiteReadApi.Select<Company>(IDbConnection, string)' requires a receiver of type 'IDbConnection'
– Steve Coleman
Dec 7 at 23:04
@SteveColeman sounds like your code is wrong, db.TableAlias() is only an argument and .Select() should only be called on the SqlExpression not TableAlias(). You can check out the commit for more usage examples.
– mythz
Dec 8 at 2:44
:-( ... I was missing a ) It was a long day of coding. Thanks for the response.
– Steve Coleman
Dec 9 at 16:33
add a comment |
In order to be able to use an alias on the source table you would need to set a table alias which wasn't supported until now with this commit.
You can now use the new db.TableAlias() API (which is now preferable over JoinAlias()) on both the source table as well as any join tables, e.g:
var q = db.From<Page>(db.TableAlias("p1"))
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.TableAlias("p2"))
.Select<Page>(p => new {
String = Sql.TableAlias(p.ActivityId, "p2")
});
var rows = db.Select(q);
This change is available from v5.4.1 that's now available on MyGet.
answered Nov 23 at 17:57
mythz
117k14193333
In order to be able to use an alias on the source table you would need to set a table alias which wasn't supported until now with this commit.
You can now use the new db.TableAlias() API (which is now preferable over JoinAlias()) on both the source table as well as any join tables, e.g:
var q = db.From<Page>(db.TableAlias("p1"))
.Join<Page>((p1, p2) =>
p1.DefinitionId == 349 &&
p1.ActivityId == "a633326227969545457" &&
p1.PageId == p2.PageId &&
p2.DefinitionId == 340, db.TableAlias("p2"))
.Select<Page>(p => new {
String = Sql.TableAlias(p.ActivityId, "p2")
});
var rows = db.Select(q);
This change is available from v5.4.1 that's now available on MyGet.
answered Nov 23 at 17:57
mythz
117k14193333
answered Nov 23 at 17:57
mythz
117k14193333
answered Nov 23 at 17:57
mythz
117k14193333
answered Nov 23 at 17:57
mythz
117k14193333
117k14193333
mythz I am using 5.4.1 and I get the error. 'TableOptions' does not contain a definition for 'Select' and the best extension method overload 'OrmLiteReadApi.Select<Company>(IDbConnection, string)' requires a receiver of type 'IDbConnection'
– Steve Coleman
Dec 7 at 23:04
@SteveColeman sounds like your code is wrong, db.TableAlias() is only an argument and .Select() should only be called on the SqlExpression not TableAlias(). You can check out the commit for more usage examples.
– mythz
Dec 8 at 2:44
:-( ... I was missing a ) It was a long day of coding. Thanks for the response.
– Steve Coleman
Dec 9 at 16:33
add a comment |
mythz I am using 5.4.1 and I get the error. 'TableOptions' does not contain a definition for 'Select' and the best extension method overload 'OrmLiteReadApi.Select<Company>(IDbConnection, string)' requires a receiver of type 'IDbConnection'
– Steve Coleman
Dec 7 at 23:04
@SteveColeman sounds like your code is wrong, db.TableAlias() is only an argument and .Select() should only be called on the SqlExpression not TableAlias(). You can check out the commit for more usage examples.
– mythz
Dec 8 at 2:44
:-( ... I was missing a ) It was a long day of coding. Thanks for the response.
– Steve Coleman
Dec 9 at 16:33
mythz I am using 5.4.1 and I get the error. 'TableOptions' does not contain a definition for 'Select' and the best extension method overload 'OrmLiteReadApi.Select<Company>(IDbConnection, string)' requires a receiver of type 'IDbConnection'
– Steve Coleman
Dec 7 at 23:04
mythz I am using 5.4.1 and I get the error. 'TableOptions' does not contain a definition for 'Select' and the best extension method overload 'OrmLiteReadApi.Select<Company>(IDbConnection, string)' requires a receiver of type 'IDbConnection'
– Steve Coleman
Dec 7 at 23:04
@SteveColeman sounds like your code is wrong, db.TableAlias() is only an argument and .Select() should only be called on the SqlExpression not TableAlias(). You can check out the commit for more usage examples.
– mythz
Dec 8 at 2:44
@SteveColeman sounds like your code is wrong, db.TableAlias() is only an argument and .Select() should only be called on the SqlExpression not TableAlias(). You can check out the commit for more usage examples.
– mythz
Dec 8 at 2:44
:-( ... I was missing a ) It was a long day of coding. Thanks for the response.
– Steve Coleman
Dec 9 at 16:33
:-( ... I was missing a ) It was a long day of coding. Thanks for the response.
– Steve Coleman
Dec 9 at 16:33
add a comment |
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