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[#34,query,backend/memory][s]: memory backend support query string (q parameter).

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This commit is contained in:
Rufus Pollock 2012-04-14 10:00:17 +01:00
parent 92f1fba38d
commit b0bf06c52e
2 changed files with 53 additions and 7 deletions
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46
src/backend/memory.js
View File

@ -117,13 +117,9 @@ this.recline.Backend = this.recline.Backend || {};
var out = {};
var numRows = queryObj.size;
var start = queryObj.from;
results = this.datasets[model.id].documents;
_.each(queryObj.filters, function(filter) {
results = _.filter(results, function(doc) {
var fieldId = _.keys(filter.term)[0];
return (doc[fieldId] == filter.term[fieldId]);
});
});
var results = this.datasets[model.id].documents;
results = this._applyFilters(results, queryObj);
results = this._applyFreeTextQuery(model, results, queryObj);
// not complete sorting!
_.each(queryObj.sort, function(sortObj) {
var fieldName = _.keys(sortObj)[0];
@ -141,6 +137,42 @@ this.recline.Backend = this.recline.Backend || {};
return dfd.promise();
},
// in place filtering
_applyFilters: function(results, queryObj) {
_.each(queryObj.filters, function(filter) {
results = _.filter(results, function(doc) {
var fieldId = _.keys(filter.term)[0];
return (doc[fieldId] == filter.term[fieldId]);
});
});
return results;
},
// we OR across fields but AND across terms in query string
_applyFreeTextQuery: function(dataset, results, queryObj) {
if (queryObj.q) {
var terms = queryObj.q.split(' ');
results = _.filter(results, function(rawdoc) {
var matches = true;
_.each(terms, function(term) {
var foundmatch = false;
dataset.fields.each(function(field) {
var value = rawdoc[field.id].toString();
// TODO regexes?
foundmatch = foundmatch || (value === term);
// TODO: early out (once we are true should break to spare unnecessary testing)
// if (foundmatch) return true;
});
matches = matches && foundmatch;
// TODO: early out (once false should break to spare unnecessary testing)
// if (!matches) return false;
});
return matches;
});
}
return results;
},
_computeFacets: function(documents, queryObj) {
var facetResults = {};
if (!queryObj.facets) {

14
test/backend.test.js
View File

@ -79,6 +79,20 @@ test('Memory Backend: query sort', function () {
});
});
test('Memory Backend: query string', function () {
var dataset = makeBackendDataset();
dataset.fetch();
dataset.query({q: 'UK'}).then(function() {
equal(dataset.currentDocuments.length, 3);
deepEqual(dataset.currentDocuments.pluck('country'), ['UK', 'UK', 'UK']);
});
dataset.query({q: 'UK 6'}).then(function() {
equal(dataset.currentDocuments.length, 1);
deepEqual(dataset.currentDocuments.models[0].id, 1);
});
});
test('Memory Backend: filters', function () {
var dataset = makeBackendDataset();
dataset.queryState.addTermFilter('country', 'UK');