multicypher: Run a multiple cypher queriers

In neo2R: Neo4j to R

Run a multiple cypher queriers

Description

Run a multiple cypher queriers

Usage

multicypher(
  graph,
  queries,
  parameters = NULL,
  result = c("row", "graph"),
  arraysAsStrings = TRUE,
  eltSep = " || "
)

Arguments

graph	the neo4j connection
queries	queries to submit. It can be either a character vector for which each element corresponds to a cypher query. Or it can be a list of lists with the following slots: query (mandatory): A single character corresponding to the cypher query. parameters (optional): A set of parameters specific for this query. If not provided, the parameters parameter of the function is used (see below). result (optional): The specific way to return the results of this query. If not provided, the result parameter of the function is used (see below).
parameters	default parameters for the cypher queries.
result	default way to return results. "row" will return a data frame and "graph" will return a list of nodes, a list of relationships and a list of paths (vectors of relationships identifiers).
arraysAsStrings	if result="row" and arraysAsStrings is TRUE (default) array from neo4j are converted to strings and array elements are separated by eltSep.
eltSep	if result="row" and arraysAsStrings is TRUE (default) array from neo4j are converted to strings and array elementes are separated by eltSep.

Value

A list of "result" of the queries (invisible). See the "result" param.

See Also

cypher(), startGraph(), prepCql(), readCql() and graphRequest()

Examples

## Not run: 
result <- multicypher(
   graph,
   queries=list(
      q1="match (n) return n.value limit 5",
      q2=list(
         query="match (f {value:$val})-[r]->(t) return f, r, t limit 5",
         result="graph",
         parameters=list(val=100)
      )
   )
)

## End(Not run)

neo2R documentation built on Feb. 16, 2023, 10:39 p.m.