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neo4j-examples / neo4j-ogm-university

Example Project for Neo4j OGM
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Enrolling more than one student for a class #5

Open luanne opened 9 years ago

luanne commented 9 years ago

Enrolling any student other than the first for a class does not work. Angular code to be updated to manage enrollments.

hjohanns commented 6 years ago

I have an error in the same area [ratpack-compute-1-6] ERROR ratpack.error.internal.DefaultDevelopmentErrorHandler - exception thrown for request to /api/students com.fasterxml.jackson.databind.JsonMappingException: Can not instantiate value of type [simple type, class school.domain.Enrollment] from Integral number (740); no single-int-arg constructor/factory method at [Source: io.netty.buffer.ByteBufInputStream@51342177; line: 1, column: 17] (through reference chain: school.domain.Student["enrollments"]->java.util.HashSet[0])

It seems that only the id of the class (740) is passed to the Enrollment creator, whereas it would need also the student Id. I cannot find where I should specify that as RelationshipEntity, the constructor should receive both ends. Any idea if this is the same problem that you report? Thanks, hj