Read CSV to Neo4j creating one node per column and relations - csv

Question

I am stuck in the command in Neo4j (I am a newbie) to create a database based on a CSV like this:
Country,Name1,Name2,Name3,Influence
France,John,Pete,Josh,2
Italy,Pete,Bepe,Juan,3
USA,Josh,Juan,Pete,1
Spain,Juan,John,,2
When I try to create one node per person (NameX) setting the relationship between names columns adding the tags of Influence and Country,It fails because there are empty names.
How can achive this?
Thanks
UPDATE:
LOAD CSV WITH HEADERS FROM 'file:///diag.csv' AS row FIELDTERMINATOR ';'
MERGE (c:Country{name:row.Country})
WITH CASE row.name1 WHEN NULL THEN [] WHEN '' THEN [] ELSE [row.name1] END as
name1List ,c
WITH CASE row.name2 WHEN NULL THEN [] WHEN '' THEN [] ELSE [row.name2] END as
name2List ,c
WITH CASE row.name3 WHEN NULL THEN [] WHEN '' THEN [] ELSE [row.name3] END as
name3List ,c
FOREACH (x IN name1List | MERGE (n:Node{name : x} )
MERGE (n)-[:REL_TYPE]->(c)
)
FOREACH (x IN name2List | MERGE (n:Node{name : x} )
MERGE (n)-[:REL_TYPE]->(c)
)
FOREACH (x IN name3List | MERGE (n:Node{name : x} )
MERGE (n)-[:REL_TYPE]->(c)
)
RETURN SUM(1)
Getting error:
Variable row not defined (line 4, column 11 (offset: 209))
"WITH CASE row.name2 WHEN NULL THEN [] WHEN '' THEN [] ELSE [row.name2] END as >name2List ,c"

Answer 1

The last line has empty Name3 field. Try adding Name3 to the last line in your data set.
Spain,Juan,John, {empty - fill this},2

Answer 2

LOAD CSV WITH HEADERS FROM 'file:///diag.csv' AS row FIELDTERMINATOR ';' MERGE (c:Country{name:row.Country})
WITH CASE row.name1 WHEN NULL THEN [] WHEN '' THEN [] ELSE [row.name1] END as name1List ,
CASE row.name2 WHEN NULL THEN [] WHEN '' THEN [] ELSE [row.name2] END as name2List ,
CASE row.name3 WHEN NULL THEN [] WHEN '' THEN [] ELSE [row.name3] END as name3List ,c,row
FOREACH (x IN name1List | MERGE (n:Node{name : x} ) MERGE (n)-[:REL_TYPE]->(c) )
FOREACH (x IN name2List | MERGE (n:Node{name : x} ) MERGE (n)-[:REL_TYPE]->(c) )
FOREACH (x IN name3List | MERGE (n:Node{name : x} ) MERGE (n)-[:REL_TYPE]->(c) ) RETURN SUM(1)
here, with the help of 'case' expression of cypher , we are creating either empty list when its null or empty or list with one value i.e (row.name3) .After case check , we can use this list to iterate and create node with property name3 . so , when its null or empty , you iterate zero times, so you wont get the error .
Finally, sum(1) will give you number of rows you processed .so, you can cross check if you have processed all the rows in the csv file or not