Merge branch '120-solr-backend'

src/backend.solr.js

@@ -0,0 +1,65 @@
+this.recline = this.recline || {};
+this.recline.Backend = this.recline.Backend || {};
+this.recline.Backend.Solr = this.recline.Backend.Solr || {};
+
+(function($, my) {
+  my.__type__ = 'solr';
+
+  // ### fetch
+  //
+  // dataset must have a solr or url attribute pointing to solr endpoint
+  my.fetch = function(dataset) {
+    var jqxhr = $.ajax({
+      url: dataset.solr || dataset.url,
+      data: {
+        rows: 1,
+        wt: 'json'
+      },
+      dataType: 'jsonp',
+      jsonp: 'json.wrf'
+    });
+    var dfd = $.Deferred();
+    jqxhr.done(function(results) {
+      // if we get 0 results we cannot get fields
+      var fields = []
+      if (results.response.numFound > 0) {
+        fields =  _.map(_.keys(results.response.docs[0]), function(fieldName) {
+          return { id: fieldName };
+        });
+      }
+      var out = {
+        fields: fields,
+        useMemoryStore: false
+      };
+      dfd.resolve(out);
+    });
+    return dfd.promise();
+  }
+
+  // TODO - much work on proper query support is needed!!
+  my.query = function(queryObj, dataset) {
+    var q = queryObj.q || '*:*';
+    var data = {
+      q: q,
+      rows: queryObj.size,
+      start: queryObj.from,
+      wt: 'json'
+    };
+    var jqxhr = $.ajax({
+      url: dataset.solr || dataset.url,
+      data: data,
+      dataType: 'jsonp',
+      jsonp: 'json.wrf'
+    });
+    var dfd = $.Deferred();
+    jqxhr.done(function(results) {
+      var out = {
+        total: results.response.numFound,
+        hits: results.response.docs
+      };
+      dfd.resolve(out);  
+    });
+    return dfd.promise();
+  };
+
+}(jQuery, this.recline.Backend.Solr));