110 lines
2.9 KiB
JavaScript

// adapted from https://github.com/harthur/costco. heather rules
var costco = function() {
function evalFunction(funcString) {
try {
eval("var editFunc = " + funcString);
} catch(e) {
return {errorMessage: e+""};
}
return editFunc;
}
function previewTransform(docs, editFunc, currentColumn) {
var preview = [];
var updated = mapDocs($.extend(true, {}, docs), editFunc);
for (var i = 0; i < updated.docs.length; i++) {
var before = docs[i]
, after = updated.docs[i]
;
if (!after) after = {};
if (currentColumn) {
preview.push({before: JSON.stringify(before[currentColumn]), after: JSON.stringify(after[currentColumn])});
} else {
preview.push({before: JSON.stringify(before), after: JSON.stringify(after)});
}
}
util.render('editPreview', 'expression-preview-container', {rows: preview});
}
function mapDocs(docs, editFunc) {
var edited = []
, deleted = []
, failed = []
;
var updatedDocs = _.map(docs, function(doc) {
try {
var updated = editFunc(_.clone(doc));
} catch(e) {
failed.push(doc);
return;
}
if(updated === null) {
updated = {_deleted: true};
edited.push(updated);
deleted.push(doc);
}
else if(updated && !_.isEqual(updated, doc)) {
edited.push(updated);
}
return updated;
});
return {
edited: edited,
docs: updatedDocs,
deleted: deleted,
failed: failed
};
}
function updateDocs(editFunc) {
var dfd = $.Deferred();
util.notify("Updating documents...", {persist: true, loader: true});
couch.request({url: app.baseURL + "api/json"}).then(function(docs) {
var toUpdate = costco.mapDocs(docs.docs, editFunc).edited;
costco.uploadDocs(toUpdate).then(
function(updatedDocs) {
util.notify(updatedDocs.length + " documents updated successfully");
recline.fetchRows(false, app.offset);
dfd.resolve(updatedDocs);
},
function(err) {
util.notify("Errorz! " + err);
dfd.reject(err);
}
);
});
return dfd.promise();
}
function uploadDocs(docs) {
var dfd = $.Deferred();
if(!docs.length) dfd.resolve("Failed to update");
couch.request({url: app.baseURL + "api/_bulk_docs", type: "POST", data: JSON.stringify({docs: docs})})
.then(
dfd.resolve,
function(err) { dfd.reject(err.responseText) }
);
return dfd.promise();
}
function deleteColumn(name) {
var deleteFunc = function(doc) {
delete doc[name];
return doc;
}
return updateDocs(deleteFunc);
}
return {
evalFunction: evalFunction,
previewTransform: previewTransform,
mapDocs: mapDocs,
updateDocs: updateDocs,
uploadDocs: uploadDocs,
deleteColumn: deleteColumn
};
}();