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loopback-datasource-juggler
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Neo4j cypher query support

This commit is contained in:
Anatoliy Chakkaev 2011-10-23 23:45:44 +04:00
parent f251ac9a5b
commit 775b6b8b1c
1 changed files with 24 additions and 0 deletions
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24
lib/adapters/neo4j.js
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@ -45,6 +45,27 @@ Neo4j.prototype.mixClassMethods = function mixClassMethods(class, properties) {
} }
}); });
class.setupCypherQuery = function (name, queryStr, rowHandler) {
class[name] = function cypherQuery(params, cb) {
if (typeof params === 'function') {
cb = params;
params = [];
} else if (params.constructor.name !== 'Array') {
params = [params];
}
var i = 0;
var q = queryStr.replace(/\?/g, function () {
return params[i++];
});
neo.client.query(function (err, result) {
if (err) return cb(err, []);
cb(null, result.map(rowHandler));
}, q);
};
};
/** /**
* @param from - id of object to check relation from * @param from - id of object to check relation from
* @param to - id of object to check relation to * @param to - id of object to check relation to
@ -228,6 +249,9 @@ Neo4j.prototype.destroy = function destroy(model, id, callback) {
Neo4j.prototype.all = function all(model, filter, callback) { Neo4j.prototype.all = function all(model, filter, callback) {
this.client.queryNodeIndex(model, 'id:*', function (err, nodes) { this.client.queryNodeIndex(model, 'id:*', function (err, nodes) {
if (nodes) {
nodes = nodes.map(function (s) { return s.data });
}
callback(err, filter && nodes ? nodes.filter(applyFilter(filter)) : nodes); callback(err, filter && nodes ? nodes.filter(applyFilter(filter)) : nodes);
}); });
}; };