SAPUI5 Metadata.xml : binding two entities

Question

I am in internship in a firm where I have to code in JS using SAPUI5 framework. It's totally new for me, that's why I followed the tutorial at http://sapui5.hana.ondemand.com . But now I have a problem, I can't find any advise on the Internet, and I can't always ask my colleagues to help me, they have a job too...

I have to do a planning with many employees and their task. I work with a mockserver with a metadata.xml file :

(for tags AssociationSet and NavigationProperty, I did it because I've seen on the OData service I use, but I don't understand it; I guessed it will be fine...)

Now the Appointments.json file :

[
{
    "AppointmentID" : 0,
    "EmployeeID" : 0,
    "start":"\/Date(1466416800000)\/",
    "end":"\/Date(1466424000000)\/",
    "title": "test"
},{
    "AppointmentID" : 1,
    "EmployeeID" : 1,
    "start":"\/Date(1466409600000)\/",
    "end":"\/Date(1466416800000)\/",
    "title": "test2"
}]

The Employees.json file :

[
{
    "EmployeeID":0,
    "LastName":"APERCE",
    "City":"Paris",
    "Team":"Dev"
},
{
    "EmployeeID":1,
    "LastName":"HACHMI",
    "City":"Lille",
    "Team":"Dev"
},
{
    "EmployeeID":2,
    "LastName":"MILLET",
    "City":"Paris",
    "Team":"Admin"
},
{
    "EmployeeID":3,
    "LastName":"CORNET",
    "City":"Poitiers",
    "Team":"Admin"
},
{
    "EmployeeID":4,
    "LastName":"EVAIN",
    "City":"Paris",
    "Team":"R&D"
}]

(As you can see, the EmployeeID is present on both Appointments.json et Employees.json)

And finally the Overview.view.xml file :

(the "data" model binds already with the metadata.xml and gets both Appointments.json and Employees.json)

Actually, this code displays the two tasks from Appointments.json for every employee in my planning. I want to bind it in order to have the appointment "test" only for the employee "APERCE" and "test2" only for "HACHMI", but I can't.

I believe it is possible to do something equivalent to a JOIN for a SQL Database, but I don't find anything about it. How should I do it ? Thank you for your answers.

PS : I am french, if you don't understand what I wrote above, sorry ; and if you can answer in french, do so, it will be better for my understanding.

EDIT : I have corrected the code according to nistv4n's advises. Now I get the following errors :

MockServer: Resource not found for the segment 'Appointment' => I understand that, the segment 'Appointment' doesn't exist since it's 'Appointments', but I don't know where I forgot the 's'.

The following problem occurred: HTTP request failed404,Not Found,{"error":{"code":404,"message":{"lang":"en","value":"Resource not found for the segment 'Appointment'"}}} => I guess it's related to the previous error, because it requests for 'Appointment' instead of 'Appointments' ?

REEDIT : I put the 's' on the right places. Now I just have : Cannot read property 'getTime' of undefined => because there is a problem with the model used in Overview.view.xml, probably in the , but it's the same if I use : "{Appointments/start}", "{Appointments>start}", "{start}" or "{/Appointments>start}".

LASTEDIT : Thanks to nistv4n, I finally did it. I have updated my code above if you have the same problem. The correct code is in PlanningCalendarRow => appointments="{path : 'data>Appointments'}" and in unified:CalendarAppointment => startDate="{data>start}" etc...

Actually, to quote nistv4n : "Appointments has a relative reference, and inner properties (start, end, title) has also a relative reference, including the model name."

nistv4n · Accepted Answer

Where you define the binding for aggregation rows of PlanningCalendar, include the $expand keyword to make the referenced activities accessible in the container:

It will fetch the assigned Appointment data for the given employee. You can refer to that using the Appointment/start binding path inside the aggregation.

Edit: It seems you missed the Association node from the first schema. Define it like this:

I would recommend to define only one-way connection between the two entities.

Could you post your code to somewhere (even in a zip archive) to investigate the whole architecture and codeline?

Edit 2: Please change the PlanningCalendarRow segment of your View XML according to this:

Appointments has a relative reference, and inner properties (start, end, title) has also a relative reference, including the model name.

SAPUI5 Metadata.xml : binding two entities

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