Exercice2
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12
exercice2.md
12
exercice2.md
@@ -1,6 +1,6 @@
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docker build -t mon-app .
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http://localhost:3000
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http://localhost:7474
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@@ -21,19 +21,21 @@ SET p.nom = row.nom,
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```
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LOAD CSV WITH HEADERS FROM 'file:///routes.csv' AS row
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WITH row
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MATCH (a:Lieu {id: toInteger(row.source)})
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MATCH (a:Point {id: toInteger(row.source)})
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WITH a, row
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MATCH (b:Lieu {id: toInteger(row.target)})
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MATCH (b:Point {id: toInteger(row.target)})
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MERGE (a)-[r:ROUTE {route_id: toInteger(row.route_id)}]->(b)
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SET r.tag = row.tag, r.cout = toFloat(row.cout);
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```
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-- routes inverses si cout_inverse != -1
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```
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LOAD CSV WITH HEADERS FROM 'file:///routes.csv' AS row
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WITH row
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WHERE toFloat(row.cout_inverse) <> -1
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MATCH (a:Lieu {id: toInteger(row.source)})
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MATCH (a:Point {id: toInteger(row.source)})
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WITH a, row
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MATCH (b:Lieu {id: toInteger(row.target)})
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MATCH (b:Point {id: toInteger(row.target)})
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MERGE (b)-[r:ROUTE {route_id: toInteger(row.route_id) * 1000}]->(a)
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SET r.tag = row.tag, r.cout = toFloat(row.cout_inverse);
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```
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