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QUESTION
I have 3 models:
Participant
Event
Enrollment
Each of them have their own tables in database. The target is to be able seeing Event
model data, Enrollment
model data and creating Participant
on one page.
Enrollment shows who of Participants
are assigned to the Event
.
Question: how to assign Participant
to the Event
so I could use Enrollment
?
P. S. If you would need additional information, tell me please. And sorry for inconvenience...
...ANSWER
Answered 2021-Mar-15 at 09:57Wow. How easy it was :D
QUESTION
I have a form, where user can add with no limit ( add shareholder ).
Shareholder can be 2 different types ( NATURAL / LEGAL )
here is interface for thouse objects:
...ANSWER
Answered 2020-Jul-27 at 09:51You can check every field separately. Just replace type
with needed field:
QUESTION
I need to create objects to return to front end from data I got from database because the response doesnt contain ALL fields of entity and I also add this [NotMapped] propety AmountOfTenants = t.Apartment.Tenants.Count(),
to the response.
If I remove ternary operator here t.ApartmentId != null ?
and just create new Apartment
every time, then, when a Tenant doesnt have any related Apartmetn to him, then my json response contains Tenant with an Apartment object inside of him, where all values are 0/null, thats why i need ternary, to set Apartment to null if Tenant's ApartmentId
is null.
Without ternary it works, but i get that apartment with 0/null values and when i add ternary operator i get this error:
System.InvalidCastException: Unable to cast object of type 'System.Linq.Expressions.NewExpression' to type 'System.Linq.Expressions.MethodCallExpression'.
Please help
ANSWER
Answered 2020-Jun-10 at 17:43You could try using this, which should eliminate the need to use the NotMapped
annotation and you wouldn't need to use the select at that point either.
QUESTION
Mybatis throws an error which says there is problem with setting params. What could be wrong? I tested the SQL query and it's fine. I'm using graddle with spring.
Error querying database.
Cause: org.postgresql.util.PSQLException: ERROR: syntax error at or near "customer" Position: 245
The error may exist in services/CustomerService.java (best guess)
The error may involve services.CustomerService.findByPersonalCodeAndCountry-Inline
The error occurred while setting parameters
Code:
...ANSWER
Answered 2018-Oct-16 at 14:15Can you try below code ?
QUESTION
I'm trying to read an Excel file using Pandas by:
...ANSWER
Answered 2018-Sep-09 at 16:10The file isn't utf-8 encoded. You need to figure out what the encoding is.
Personally I'd give dataSet = pd.read_excel(xlsPath, encoding="ISO-8859-1")
a shot first.
QUESTION
I have an HTML form that takes field values to outputs custom instructions HTML & JavaScript instructions.
When the user fills the form and submits, JS code executes to inject the instructions at the bottom of the page. As soon as I include the ";
document.getElementById('returnedHtml').innerHTML = instructionHttp;
}
Instructions Generator
Code
--- Customized Instructions ---
I have also tried replacing formInfo() with the following
...ANSWER
Answered 2018-Jul-30 at 21:57You can not create an element with HTML; you can only create an element by its tag name (you can set its text with the textContent
attribute) to append to a DOM element.
QUESTION
I am currently working on a project, that consists generating various document examples in a new workbook, basing on the table data and document template. Here's what I have tried:
...ANSWER
Answered 2018-Jul-26 at 12:35Replace
QUESTION
I have this table in my View that contains the single form. like below . in this table , I show all rows of one of my table of database and showing it to the user . then user must fill empty inputs of this form and then hit the submit button to submit the form and then I update the table in my controller with new data that user filled recently.
...ANSWER
Answered 2018-Apr-22 at 09:19Try something like this
QUESTION
I use vue instance but it is not parsing , i think problem is relevant with using double quotes in Metro.dialog.Create.content.
Here is the main page include table and it works correctly.I added when dblclick table on main page open dialog and another table showing in this dialog.
...ANSWER
Answered 2018-Apr-11 at 22:50I was curious how this would work so I threw together a quick test. Worked fine using the hidden
QUESTION
Briefly speaking, the recursion stopped halfway though everything else is fine.
The recursion function is shown below (The entire code can be found here):
...ANSWER
Answered 2018-Feb-07 at 16:10As documentation specifies:
The highest possible limit is platform-dependent. A user may need to set the limit higher when they have a program that requires deep recursion and a platform that supports a higher limit. This should be done with care, because a too-high limit can lead to a crash.
There is a script to check that limit.
You will have to implement non recursive DFS.
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