added a resolver for fetching path of a node

Author: Ronak-23

backend/family_tree/student/admin.py

@@ -1,5 +1,9 @@
 from django.contrib import admin
+#from student.models import Student
 
 from .models import Student
 
-admin.site.register(Student)
+class StudentAdmin(admin.ModelAdmin):
+  save_as=True
+
+admin.site.register(Student, StudentAdmin)

backend/family_tree/student/models.py

@@ -1,5 +1,9 @@
 from django.db import models
 
+class SocialMedia(models.Model):
+		facebook = models.URLField(max_length=255)
+		instagram = models.URLField(max_length=255)
+
 class Student(models.Model):
     roll_no= models.CharField(max_length=9)
     name= models.CharField(max_length=50)
@@ -8,15 +12,11 @@ class Student(models.Model):
     picture= models.URLField(max_length=200)
     homeTown= models.CharField(max_length=200)
     extraCurriculars= models.CharField(max_length=400)
-    socialMedia= models.ForeignKey('SocialMedia', on_delete=models.CASCADE, default=None)
+    socialMedia= models.ForeignKey(SocialMedia, on_delete=models.CASCADE, default=None, blank=True, null=True)
     linkedIn= models.URLField(max_length=200)
     email= models.EmailField(max_length=254)
     parentId= models.CharField(max_length=400)
 
-
-class SocialMedia(models.Model):
-		facebook = models.URLField(max_length=255)
-		instagram = models.URLField(max_length=255)
 
 
 

backend/family_tree/student/schema.py

@@ -8,10 +8,21 @@ class Meta:
         fields= ("id","name","branch","year","picture","homeTown","extraCurriculars","socialMedia", "linkedIn","email","parentId","roll_no")
         filter_fields=["id","name","branch","year","email","parentId","roll_no"]
 
+
 class Query(graphene.ObjectType):
     students=graphene.List(StudentType)
-
+    student_path= graphene.List(StudentType, roll=graphene.String())
     def resolve_students(root,info):
         return Student.objects.all()
+    def resolve_student_path(root, info, roll):
+        pathObjects=[]
+        while(Student.objects.filter(roll_no=roll)[0].parentId!="root"):
+            pathObjects.append(Student.objects.filter(roll_no=roll)[0])
+            roll= Student.objects.filter(roll_no=roll)[0].parentId
+        pathObjects.append(Student.objects.filter(roll_no=roll)[0])
+        return pathObjects
+    
+
+        
 
 schema=graphene.Schema(query=Query)