Skip to main content
After defining all Table objects, construct a Graph over these tables. A Graph connects the Tables by their primary key / foreign key relationships.

​
Creating a Graph

graph = kumo.Graph(
    # These are the tables that participate in the graph: the keys of this
    # dictionary are the names of the tables, and the values are the Table
    # objects that correspond to these names:
    tables={
        'customer': customer,
        'stock': stock,
        'transaction': transaction,
    },

    # These are the edges that define the primary key / foreign key
    # relationships between the tables defined above. Here, `src_table`
    # is the table that has the foreign key `fkey`, which maps to the
    # table `dst_table`'s primary key:
    edges=[
        dict(src_table='transaction', fkey='StockCode', dst_table='stock'),
        dict(src_table='transaction', fkey='CustomerID', dst_table='customer'),
    ],
)

# Validate the graph's correctness:
graph.validate(verbose=True)