how do I create a “like” filter view in couchdb

Question

Here\'s an example of what I need in sql:

SELECT name FROM employ WHERE name LIKE %bro%

How do I create view li

Answer 1

I know it is an old question, but: What about using a "list" function? You can have all your normal views, andthen add a "list" function to the design document to process the view's results:

{
  "_id": "_design/...",
  "views": {
    "employees": "..."
  },
  "lists": {
    "by_name": "..."
  }
}

And the function attached to "by_name" function, should be something like:

function (head, req) {
  provides('json', function() {
    var filtered = [];

    while (row = getRow()) {
      // We can retrive all row information from the view
      var key = row.key;
      var value = row.value;
      var doc = req.query.include_docs ? row.doc : {};

      if (value.name.indexOf(req.query.name) == 0) {
        if (req.query.include_docs) {
          filtered.push({ key: key, value: value, doc: doc});
        } else {
          filtered.push({ key: key, value: value});
        }
      }
    }

    return toJSON({ total_rows: filtered.length, rows: filtered });
  });
}

You can, of course, use regular expressions too. It's not a perfect solution, but it works to me.