119 lines
3.1 KiB
JavaScript
119 lines
3.1 KiB
JavaScript
// adapted from https://github.com/harthur/costco. heather rules
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var costco = function() {
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function handleEditorChange(e) {
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var editFunc = evalFunction(e.target.value);
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var errors = $('.expression-preview-parsing-status');
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if (_.isFunction(editFunc)) {
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errors.text('No syntax error.');
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} else {
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errors.text(editFunc);
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return;
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}
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previewTransform(app.cache, editFunc);
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}
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function evalFunction(funcString) {
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try {
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eval("var editFunc = " + funcString);
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return editFunc;
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} catch(e) {
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return e+"";
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}
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}
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function previewTransform(docs, editFunc) {
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var preview = [];
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var updated = mapDocs(docs, editFunc);
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for (var i = 0; i < updated.docs.length; i++) {
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var before = docs[i]
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, after = updated.docs[i]
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;
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if (!after) after = {};
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preview.push({before: JSON.stringify(before[app.currentColumn]), after: JSON.stringify(after[app.currentColumn])});
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}
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util.render('editPreview', 'expression-preview-container', {rows: preview});
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}
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function mapDocs(docs, editFunc) {
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var edited = []
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, deleted = []
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, failed = []
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;
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var updatedDocs = _.map(docs, function(doc) {
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try {
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var updated = editFunc(_.clone(doc));
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} catch(e) {
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failed.push(doc);
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return;
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}
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if(updated === null) {
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updated = {_deleted: true};
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edited.push(updated);
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deleted.push(doc);
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}
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else if(updated && !_.isEqual(updated, doc)) {
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edited.push(updated);
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}
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return updated;
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});
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return {
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edited: edited,
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docs: updatedDocs,
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deleted: deleted,
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failed: failed
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};
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}
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function updateDocs(editFunc) {
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var dfd = $.Deferred();
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util.notify("Updating documents...", {persist: true, loader: true});
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couch.request({url: app.baseURL + "api/json"}).then(function(docs) {
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var toUpdate = costco.mapDocs(docs.docs, editFunc).edited;
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costco.uploadDocs(toUpdate).then(
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function(updatedDocs) {
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util.notify(updatedDocs.length + " documents updated successfully");
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recline.fetchRows(false, app.offset);
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dfd.resolve(updatedDocs);
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},
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function(err) {
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util.notify("Errorz! " + err);
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dfd.reject(err);
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}
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);
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});
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return dfd.promise();
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}
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function uploadDocs(docs) {
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var dfd = $.Deferred();
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if(!docs.length) dfd.resolve("Failed to update");
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couch.request({url: app.baseURL + "api/_bulk_docs", type: "POST", data: JSON.stringify({docs: docs})})
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.then(
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dfd.resolve,
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function(err) { dfd.reject(err.responseText) }
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);
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return dfd.promise();
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}
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function deleteColumn(name) {
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var deleteFunc = function(doc) {
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delete doc[name];
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return doc;
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}
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return updateDocs(deleteFunc);
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}
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return {
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handleEditorChange: handleEditorChange,
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evalFunction: evalFunction,
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previewTransform: previewTransform,
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mapDocs: mapDocs,
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updateDocs: updateDocs,
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uploadDocs: uploadDocs,
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deleteColumn: deleteColumn
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};
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}(); |