mirror of https://gitee.com/bigwinds/arangodb
Added the knows graph of the traversal module to graph examples. Started rewriting traversal examples for new graph module.
This commit is contained in:
Michael Hackstein
parent
479268d450
commit
1d503a0d2a
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@ -33,6 +33,7 @@ var actions = require("org/arangodb/actions");
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var db = require("internal").db;
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var traversal = require("org/arangodb/graph/traversal");
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var Traverser = traversal.Traverser;
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var graph = require("org/arangodb/general-graph");
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// -----------------------------------------------------------------------------
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// --SECTION-- private functions
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@ -79,7 +80,9 @@ function notFound (req, res, code, message) {
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///
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/// - `startVertex`: id of the startVertex, e.g. `"users/foo"`.
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///
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/// - `edgeCollection`: name of the collection that contains the edges.
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/// - `edgeCollection`: **Deprecated** name of the collection that contains the edges.
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///
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/// - `graphName`: name of the graph that contains the edges.
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///
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/// - `filter` (optional, default is to include all nodes):
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/// body (JavaScript code) of custom filter function
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@ -213,90 +216,49 @@ function notFound (req, res, code, message) {
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/// Follow only outbound edges:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalOutbound}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = '{ "startVertex": "' + a + '", ';
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/// body += '"edgeCollection" : "' + knows.name() + '", ';
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/// body += '"graphName" : "' + g.__name + '", ';
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/// body += '"direction" : "outbound"}';
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///
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/// var response = logCurlRequest('POST', url, body);
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Follow only inbound edges:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalInbound}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = '{ "startVertex": "' + a + '", ';
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/// body += '"edgeCollection" : "' + knows.name() + '", ';
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/// body += '"graphName" : "' + g.__name + '", ';
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/// body += '"direction" : "inbound"}';
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///
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/// var response = logCurlRequest('POST', url, body);
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Follow any direction of edges:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalAny}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = {
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/// startVertex: a,
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/// edgeCollection: knows.name(),
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/// graphName: g.__name,
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/// direction: "any",
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/// uniqueness: {
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/// vertices: "none",
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@ -308,32 +270,18 @@ function notFound (req, res, code, message) {
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Excluding `Charlie` and `Bob`:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalFilterExclude}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = '{ "startVertex": "' + a + '", ';
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/// body += '"edgeCollection" : "' + knows.name() + '", ';
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/// body += '"graphName" : "' + g.__name + '", ';
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/// body += '"direction" : "outbound", ';
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/// body += '"filter" : "if (vertex.name === \\"Bob\\" || ';
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/// body += 'vertex.name === \\"Charlie\\") {';
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Do not follow edges from `Bob`:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalFilterPrune}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = '{ "startVertex": "' + a + '", ';
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/// body += '"edgeCollection" : "' + knows.name() + '", ';
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/// body += '"graphName" : "' + g.__name + '", ';
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/// body += '"direction" : "outbound", ';
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/// body += '"filter" : "if (vertex.name === \\"Bob\\") {';
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/// body += 'return \\"prune\\";'
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Visit only nodes in a depth of at least 2:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalMinDepth}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = '{ "startVertex": "' + a + '", ';
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/// body += '"edgeCollection" : "' + knows.name() + '", ';
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/// body += '"graphName" : "' + g.__name + '", ';
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/// body += '"direction" : "outbound", ';
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/// body += '"minDepth" : 2}';
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///
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Visit only nodes in a depth of at most 1:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalMaxDepth}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = '{ "startVertex": "' + a + '", ';
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/// body += '"edgeCollection" : "' + knows.name() + '", ';
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/// body += '"graphName" : "' + g.__name + '", ';
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/// body += '"direction" : "outbound", ';
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/// body += '"maxDepth" : 1}';
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///
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Count all visited nodes and return a list of nodes only:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalVisitorCountAndList}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = '{ "startVertex": "' + a + '", ';
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/// body += '"edgeCollection" : "' + knows.name() + '", ';
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/// body += '"graphName" : "' + g.__name + '", ';
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/// body += '"direction" : "outbound", ';
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/// body += '"init" : "result.visited = 0; result.myVertices = [ ];", ';
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/// body += '"visitor" : "result.visited++; result.myVertices.push(vertex);"}';
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Expand only inbound edges of `Alice` and outbound edges of `Eve`:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalVisitorExpander}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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/// var e = users.save({name: "Eve"})._id;
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/// knows.save(a, b, {});
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/// knows.save(b, c, {});
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/// knows.save(b, d, {});
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/// knows.save(e, a, {});
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/// knows.save(e, b, {});
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/// var examples = require("org/arangodb/graph-examples/example-graph.js");
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/// var g = examples.loadGraph("knows_graph");
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/// var a = g.persons.document("alice")._id;
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/// var url = "/_api/traversal";
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/// var body = {
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/// startVertex: a,
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/// edgeCollection: knows.name(),
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/// graphName: g.__name,
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/// expander: "var connections = [ ];" +
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/// "if (vertex.name === \"Alice\") {" +
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/// "config.edgeCollection.inEdges(vertex).forEach(function (e) {" +
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/// "config.getInEdges(vertex).forEach(function (e) {" +
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/// "connections.push({ " +
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/// "vertex: require(\"internal\").db._document(e._from), " +
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/// "edge: e" +
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/// "});" +
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/// "}" +
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/// "if (vertex.name === \"Eve\") {" +
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/// "config.edgeCollection.outEdges(vertex).forEach(function (e) {" +
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/// "config.getOutEdges(vertex).forEach(function (e) {" +
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/// "connections.push({" +
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/// "vertex: require(\"internal\").db._document(e._to), " +
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/// "edge: e" +
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/// assert(response.code === 200);
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///
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/// logJsonResponse(response);
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/// db._drop(cv);
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/// db._drop(ce);
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/// examples.dropGraph("knows_graph");
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/// @END_EXAMPLE_ARANGOSH_RUN
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///
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/// Follow the `depthfirst` strategy:
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///
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/// @EXAMPLE_ARANGOSH_RUN{RestTraversalDepthFirst}
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/// var cv = "persons";
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/// var ce = "knows";
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/// db._drop(cv);
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/// db._drop(ce);
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/// var users = db._create(cv);
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/// var knows = db._createEdgeCollection(ce);
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/// var a = users.save({name: "Alice"})._id;
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/// var b = users.save({name: "Bob"})._id;
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/// var c = users.save({name: "Charlie"})._id;
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/// var d = users.save({name: "Dave"})._id;
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||||
/// var e = users.save({name: "Eve"})._id;
|
||||
/// knows.save(a, b, {});
|
||||
/// knows.save(b, c, {});
|
||||
/// knows.save(b, d, {});
|
||||
/// knows.save(e, a, {});
|
||||
/// knows.save(e, b, {});
|
||||
/// var examples = require("org/arangodb/graph-examples/example-graph.js");
|
||||
/// var g = examples.loadGraph("knows_graph");
|
||||
/// var a = g.persons.document("alice")._id;
|
||||
/// var url = "/_api/traversal";
|
||||
/// var body = {
|
||||
/// startVertex: a,
|
||||
/// edgeCollection: knows.name(),
|
||||
/// graphName: g.__name,
|
||||
/// direction: "any",
|
||||
/// strategy: "depthfirst"
|
||||
/// };
|
||||
|
|
@ -567,33 +431,19 @@ function notFound (req, res, code, message) {
|
|||
/// assert(response.code === 200);
|
||||
///
|
||||
/// logJsonResponse(response);
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// examples.dropGraph("knows_graph");
|
||||
/// @END_EXAMPLE_ARANGOSH_RUN
|
||||
///
|
||||
/// Using `postorder` ordering:
|
||||
///
|
||||
/// @EXAMPLE_ARANGOSH_RUN{RestTraversalPostorder}
|
||||
/// var cv = "persons";
|
||||
/// var ce = "knows";
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// var users = db._create(cv);
|
||||
/// var knows = db._createEdgeCollection(ce);
|
||||
/// var a = users.save({name: "Alice"})._id;
|
||||
/// var b = users.save({name: "Bob"})._id;
|
||||
/// var c = users.save({name: "Charlie"})._id;
|
||||
/// var d = users.save({name: "Dave"})._id;
|
||||
/// var e = users.save({name: "Eve"})._id;
|
||||
/// knows.save(a, b, {});
|
||||
/// knows.save(b, c, {});
|
||||
/// knows.save(b, d, {});
|
||||
/// knows.save(e, a, {});
|
||||
/// knows.save(e, b, {});
|
||||
/// var examples = require("org/arangodb/graph-examples/example-graph.js");
|
||||
/// var g = examples.loadGraph("knows_graph");
|
||||
/// var a = g.persons.document("alice")._id;
|
||||
/// var url = "/_api/traversal";
|
||||
/// var body = {
|
||||
/// startVertex: a,
|
||||
/// edgeCollection: knows.name(),
|
||||
/// graphName: g.__name,
|
||||
/// direction: "any",
|
||||
/// order: "postorder"
|
||||
/// };
|
||||
|
|
@ -602,29 +452,15 @@ function notFound (req, res, code, message) {
|
|||
/// assert(response.code === 200);
|
||||
///
|
||||
/// logJsonResponse(response);
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// examples.dropGraph("knows_graph");
|
||||
/// @END_EXAMPLE_ARANGOSH_RUN
|
||||
///
|
||||
/// Using `backward` item-ordering:
|
||||
///
|
||||
/// @EXAMPLE_ARANGOSH_RUN{RestTraversalBackwardItemOrder}
|
||||
/// var cv = "persons";
|
||||
/// var ce = "knows";
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// var users = db._create(cv);
|
||||
/// var knows = db._createEdgeCollection(ce);
|
||||
/// var a = users.save({name: "Alice"})._id;
|
||||
/// var b = users.save({name: "Bob"})._id;
|
||||
/// var c = users.save({name: "Charlie"})._id;
|
||||
/// var d = users.save({name: "Dave"})._id;
|
||||
/// var e = users.save({name: "Eve"})._id;
|
||||
/// knows.save(a, b, {});
|
||||
/// knows.save(b, c, {});
|
||||
/// knows.save(b, d, {});
|
||||
/// knows.save(e, a, {});
|
||||
/// knows.save(e, b, {});
|
||||
/// var examples = require("org/arangodb/graph-examples/example-graph.js");
|
||||
/// var g = examples.loadGraph("knows_graph");
|
||||
/// var a = g.persons.document("alice")._id;
|
||||
/// var url = "/_api/traversal";
|
||||
/// var body = {
|
||||
/// startVertex: a,
|
||||
|
|
@ -637,34 +473,20 @@ function notFound (req, res, code, message) {
|
|||
/// assert(response.code === 200);
|
||||
///
|
||||
/// logJsonResponse(response);
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// examples.dropGraph("knows_graph");
|
||||
/// @END_EXAMPLE_ARANGOSH_RUN
|
||||
///
|
||||
/// Edges should only be included once globally,
|
||||
/// but nodes are included every time they are visited:
|
||||
///
|
||||
/// @EXAMPLE_ARANGOSH_RUN{RestTraversalEdgeUniqueness}
|
||||
/// var cv = "persons";
|
||||
/// var ce = "knows";
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// var users = db._create(cv);
|
||||
/// var knows = db._createEdgeCollection(ce);
|
||||
/// var a = users.save({name: "Alice"})._id;
|
||||
/// var b = users.save({name: "Bob"})._id;
|
||||
/// var c = users.save({name: "Charlie"})._id;
|
||||
/// var d = users.save({name: "Dave"})._id;
|
||||
/// var e = users.save({name: "Eve"})._id;
|
||||
/// knows.save(a, b, {});
|
||||
/// knows.save(b, c, {});
|
||||
/// knows.save(b, d, {});
|
||||
/// knows.save(e, a, {});
|
||||
/// knows.save(e, b, {});
|
||||
/// var examples = require("org/arangodb/graph-examples/example-graph.js");
|
||||
/// var g = examples.loadGraph("knows_graph");
|
||||
/// var a = g.persons.document("alice")._id;
|
||||
/// var url = "/_api/traversal";
|
||||
/// var body = {
|
||||
/// startVertex: a,
|
||||
/// edgeCollection: knows.name(),
|
||||
/// graphName: g.__name,
|
||||
/// direction: "any",
|
||||
/// uniqueness: {
|
||||
/// vertices: "none",
|
||||
|
|
@ -676,8 +498,7 @@ function notFound (req, res, code, message) {
|
|||
/// assert(response.code === 200);
|
||||
///
|
||||
/// logJsonResponse(response);
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// examples.dropGraph("knows_graph");
|
||||
/// @END_EXAMPLE_ARANGOSH_RUN
|
||||
///
|
||||
/// If the underlying graph is cyclic, `maxIterations` should be set:
|
||||
|
|
@ -689,20 +510,17 @@ function notFound (req, res, code, message) {
|
|||
///
|
||||
///
|
||||
/// @EXAMPLE_ARANGOSH_RUN{RestTraversalMaxIterations}
|
||||
/// var cv = "persons";
|
||||
/// var ce = "knows";
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// var users = db._create(cv);
|
||||
/// var knows = db._createEdgeCollection(ce);
|
||||
/// var a = users.save({name: "Alice"})._id;
|
||||
/// var b = users.save({name: "Bob"})._id;
|
||||
/// knows.save(a, b, {});
|
||||
/// knows.save(b, a, {});
|
||||
/// var examples = require("org/arangodb/graph-examples/example-graph.js");
|
||||
/// var g = examples.loadGraph("knows_graph");
|
||||
/// var a = g.persons.document("alice")._id;
|
||||
/// var b = g.persons.document("bob")._id;
|
||||
/// g.knows.truncate();
|
||||
/// g.knows.save(a, b, {});
|
||||
/// g.knows.save(b, a, {});
|
||||
/// var url = "/_api/traversal";
|
||||
/// var body = {
|
||||
/// startVertex: a,
|
||||
/// edgeCollection: knows.name(),
|
||||
/// graphName: g.__name,
|
||||
/// direction: "any",
|
||||
/// uniqueness: {
|
||||
/// vertices: "none",
|
||||
|
|
@ -715,8 +533,7 @@ function notFound (req, res, code, message) {
|
|||
/// assert(response.code === 500);
|
||||
///
|
||||
/// logJsonResponse(response);
|
||||
/// db._drop(cv);
|
||||
/// db._drop(ce);
|
||||
/// examples.dropGraph("knows_graph");
|
||||
/// @END_EXAMPLE_ARANGOSH_RUN
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
|
@ -742,26 +559,43 @@ function post_api_traversal(req, res) {
|
|||
catch (err) {
|
||||
return notFound(req, res, arangodb.ERROR_ARANGO_DOCUMENT_NOT_FOUND, "invalid startVertex");
|
||||
}
|
||||
|
||||
// check edge collection
|
||||
// -----------------------------------------
|
||||
|
||||
if (json.edgeCollection === undefined ||
|
||||
typeof json.edgeCollection !== "string") {
|
||||
return badParam(req, res, "missing or invalid edgeCollection");
|
||||
}
|
||||
|
||||
var datasource;
|
||||
var edgeCollection;
|
||||
try {
|
||||
edgeCollection = db._collection(json.edgeCollection);
|
||||
}
|
||||
catch (err2) {
|
||||
|
||||
if (json.graphName === undefined) {
|
||||
// check edge collection
|
||||
// -----------------------------------------
|
||||
|
||||
if (json.edgeCollection === undefined) {
|
||||
return badParam(req, res, "missing graphname");
|
||||
}
|
||||
if (typeof json.edgeCollection !== "string") {
|
||||
return badParam(req, res, "invalid edgecollection");
|
||||
}
|
||||
|
||||
try {
|
||||
edgeCollection = db._collection(json.edgeCollection);
|
||||
datasource = traversal.collectionDatasourceFactory(edgeCollection);
|
||||
}
|
||||
catch (ignore) {
|
||||
}
|
||||
|
||||
if (edgeCollection === undefined ||
|
||||
edgeCollection === null) {
|
||||
return notFound(req, res, arangodb.ERROR_ARANGO_COLLECTION_NOT_FOUND,
|
||||
"invalid edgeCollection");
|
||||
}
|
||||
|
||||
} else if (typeof json.graphName !== "string") {
|
||||
return badParam(req, res, "invalid graphname");
|
||||
} else {
|
||||
if (!graph._exists(json.graphName)) {
|
||||
return badParam(req, res, "invalid graphname");
|
||||
}
|
||||
datasource = traversal.generalGraphDatasourceFactory(json.graphName);
|
||||
}
|
||||
|
||||
if (edgeCollection === undefined ||
|
||||
edgeCollection === null) {
|
||||
return notFound(req, res, arangodb.ERROR_ARANGO_COLLECTION_NOT_FOUND, "invalid edgeCollection");
|
||||
}
|
||||
|
||||
// set up filters
|
||||
// -----------------------------------------
|
||||
|
|
@ -844,8 +678,7 @@ function post_api_traversal(req, res) {
|
|||
|
||||
var config = {
|
||||
params: json,
|
||||
edgeCollection: edgeCollection,
|
||||
datasource: traversal.collectionDatasourceFactory(edgeCollection),
|
||||
datasource: datasource,
|
||||
strategy: json.strategy,
|
||||
order: json.order,
|
||||
itemOrder: json.itemOrder,
|
||||
|
|
@ -858,6 +691,10 @@ function post_api_traversal(req, res) {
|
|||
maxIterations: json.maxIterations,
|
||||
uniqueness: json.uniqueness
|
||||
};
|
||||
|
||||
if (edgeCollection !== undefined) {
|
||||
config.edgeCollection = edgeCollection;
|
||||
}
|
||||
|
||||
// assemble result object
|
||||
// -----------------------------------------
|
||||
|
|
|
|||
|
|
@ -31,6 +31,23 @@
|
|||
|
||||
var Graph = require("org/arangodb/general-graph");
|
||||
|
||||
var createTraversalExample = function() {
|
||||
var g = Graph._create("knows_graph",
|
||||
[Graph._undirectedRelationDefinition("knows", "persons")]
|
||||
);
|
||||
var a = g.persons.save({name: "Alice", _key: "alice"})._id;
|
||||
var b = g.persons.save({name: "Bob", _key: "bob"})._id;
|
||||
var c = g.persons.save({name: "Charlie", _key: "charlie"})._id;
|
||||
var d = g.persons.save({name: "Dave", _key: "dave"})._id;
|
||||
var e = g.persons.save({name: "Eve", _key: "eve"})._id;
|
||||
g.knows.save(a, b, {});
|
||||
g.knows.save(b, c, {});
|
||||
g.knows.save(b, d, {});
|
||||
g.knows.save(e, a, {});
|
||||
g.knows.save(e, b, {});
|
||||
return g;
|
||||
};
|
||||
|
||||
var createSocialGraph = function() {
|
||||
var edgeDefinition = [];
|
||||
edgeDefinition.push(Graph._undirectedRelationDefinition("relation", ["female", "male"]));
|
||||
|
|
@ -72,14 +89,15 @@
|
|||
|
||||
|
||||
var dropGraph = function(name) {
|
||||
return Graph._drop(name);
|
||||
if (Graph._exists(name)) {
|
||||
return Graph._drop(name, true);
|
||||
}
|
||||
};
|
||||
|
||||
var loadGraph = function(name) {
|
||||
if (Graph._exists(name)) {
|
||||
dropGraph(name);
|
||||
}
|
||||
switch (name) {
|
||||
case "knows_graph":
|
||||
return createTraversalExample();
|
||||
case "routeplanner":
|
||||
return createRoutePlannerGraph();
|
||||
case "social":
|
||||
|
|
|
|||
|
|
@ -25,6 +25,7 @@
|
|||
/// Copyright holder is triAGENS GmbH, Cologne, Germany
|
||||
///
|
||||
/// @author Jan Steemann
|
||||
/// @author Michael Hackstein
|
||||
/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
|
@ -47,7 +48,7 @@ var ArangoTraverser;
|
|||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
function clone (obj) {
|
||||
if (obj === null || typeof(obj) !== "object") {
|
||||
if (obj === null || typeof obj !== "object") {
|
||||
return obj;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue