I am querying Mongoose db with a search, where the title is the "customTitle" from the URL.

The search works well if I search for all items, e.g. Article.find(err, foundArticles) =>, but I am getting an empty query response to Article.find({title:/customTitle/i}, (err, foundArticles) => {

I'd like to get a response with all items, that contains "customTitle" variable in any record.

app.route("/:customTitle")
.get(function(req, res){
  const customTitle = _.capitalize(req.params.customTitle);
  Article.find({title:/customTitle/i}, (err, foundArticles) => {
  if (!err){
    res.send(foundArticles);
    console.log(typeof customTitle  " ", customTitle);
    console.log(foundArticles);
  } else {
    res.send(err);
  }
});

What is the problem here, please? Thank you.

CodePudding user response：

You need to create the regex using new RegExp. You are searching for the literal string customTitle.

For example:

const rx = new RegExp(customTitle, 'i')
query.find({title:rx})

CodePudding user response：

I've found, that I can use RegExp of Mongoose and JavaScript

Mongoose RegExp that works:

app.route("/:customTitle")
  .get(function(req, res) {
    const customTitle = _.capitalize(req.params.customTitle);
    Article.find({ title: {$regex: customTitle, $options:'i'}}, (err, foundArticles) => {
      if (!err) {
        res.send(foundArticles);
      } else {
        res.send(err);
      }
  });

And JavaScript RegExp that works:

  app.route("/:customTitle")
    .get(function(req, res) {
      const customTitle = _.capitalize(req.params.customTitle);
      const rx = new RegExp(customTitle, 'i');
      Article.find({title:rx}, (err, foundArticles) => {
        if (!err) {
          res.send(foundArticles);
        } else {
          res.send(err);
        }
    });