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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| function cypher(model) { | ||
| function props(element) { | ||
| var props = {}; | ||
| if (element.label()) props.label = element.label(); | ||
| element.properties().list().forEach(function (property) { | ||
| props[property.key] = property.value; | ||
| }); | ||
| return props; | ||
| } | ||
|
|
||
| function isIdentifier(name) { | ||
| return /^[\w\d_]+$/.test(name); | ||
| } | ||
|
|
||
| function formatIdentifier(name) { | ||
| return isIdentifier(name) ? name : "`" + name + "`"; | ||
| } | ||
|
|
||
| function render(props) { | ||
| var res = ""; | ||
| for (var key in props) { | ||
| if (res.length > 0) res += ","; | ||
| if (props.hasOwnProperty(key)) { | ||
| res += formatIdentifier(key) + ":"; | ||
| var value = props[key]; | ||
| res += typeof value == "string" ? "'" + value + "'" : value; | ||
| } | ||
| } | ||
| return res.length == 0 ? "" : "{" + res + "}"; | ||
| } | ||
|
|
||
| var statements = []; | ||
| model.nodeList().forEach(function (node) { | ||
| statements.push("(" + formatIdentifier("_"+node.id) +" "+ render(props(node)) + ")"); | ||
| }); | ||
| model.relationshipList().forEach(function (rel) { | ||
| statements.push(formatIdentifier("_"+rel.start.id) + | ||
| "-[:" + formatIdentifier(rel.label()||"RELATED_TO") + | ||
| // " " + TODO render(props(rel)) + | ||
| "]->"+ | ||
| formatIdentifier("_"+rel.end.id) | ||
| ) | ||
| }); | ||
| if (statements.length==0) return ""; | ||
| return "CREATE \n " + statements.join(",\n "); | ||
| }; | ||
| if (typeof exports != "undefined") exports.cypher=cypher | ||
| gd.cypher=function(model) {return cypher(model || this.model());} |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| var vows = require("vows"), | ||
| assert = require("assert" ), | ||
| d3 = require("d3"); | ||
|
|
||
| var suite = vows.describe("graph model"); | ||
|
|
||
| require("../../graph-diagram.js"); | ||
| var cypher=require("../../cypher.js").cypher; | ||
|
|
||
| suite.addBatch({ | ||
| "format cypher": { | ||
| "empty model": { | ||
| topic: function() { | ||
| var model = gd.model(); | ||
| return cypher(model); | ||
| }, | ||
| "empty": function(statement) { | ||
| assert.equal(statement, ""); | ||
| } | ||
| }, | ||
| "one node": { | ||
| topic: function() { | ||
| var model = gd.model(); | ||
| model.createNode("node_A").x(12).y(34).label("A" ).class("diagram-specific-class") | ||
| .properties().set("first name", "Alistair").set("location", "London").set("number",1).set("male",true); | ||
|
|
||
| return cypher(model); | ||
| }, | ||
| "one node": function(statement) { | ||
| assert.match(statement,/CREATE/); | ||
| }, | ||
| "with node id": function(statement) { | ||
| assert.match(statement,/\(_node_A /); | ||
| }, | ||
| "with label": function(statement) { | ||
| assert.match(statement,/label:'A'/); | ||
| }, | ||
| "with properties": function(statement) { | ||
| assert.match(statement,/`first name`:'Alistair'/); | ||
| assert.match(statement,/location:'London'/); | ||
| assert.match(statement,/number:1/); | ||
| assert.match(statement,/male:true/); | ||
| } | ||
| }, | ||
| "two nodes and one relationship": { | ||
| topic: function() { | ||
| var model = gd.model(); | ||
| var nodeA = model.createNode("node_A"); | ||
| var nodeB = model.createNode("node B"); | ||
| model.createRelationship(nodeA, nodeB).label("RELATED TO" ).class("diagram-specific-class"); | ||
| return cypher(model); | ||
| }, | ||
| "create statement": function(statement) { | ||
| assert.match(statement,/CREATE/); | ||
| }, | ||
| "from A": function(statement) { | ||
| assert.match(statement,/\(_node_A \)/); | ||
| assert.match(statement,/_node_A-\[/); | ||
| }, | ||
| "to B": function(statement) { | ||
| assert.match(statement,/\(`_node B` \)/); | ||
| assert.match(statement,/\]->`_node B`/); | ||
| }, | ||
| "with label": function(statement) { | ||
| assert.match(statement,/\[:`RELATED TO`/); | ||
| } | ||
| } | ||
| } | ||
| }); | ||
|
|
||
| suite.export(module); |