buildRegexQuery: buildRegexQuery

In ProjectTw/TwitteR2Mongo: Stream Tweets form Twitter-API to MongoDB based on trend detection

Description

Builds a regular expression query for mongoDB in json format, for the fields "entitites.hashtags.text" and "text". Can be use in conjunction with a time interval.

Usage

buildRegexQuery(regex, timestamp, fields = c("entitites.hashtags.text",
  "text"), regexoption = "i", conjunction = "$or")

Arguments

regex	the regular expression
timestamp	to retrieve hits only within a given interval
fields	to be searched by the regex. Default "text" and "entitites.hashtags.text".
regexoption	options used for the regex. Default is "i", case insensitivity.
conjunction	used to link the regex. Can only be "$and" or "$or". Default is "$or".

Value

query in jsonformat for mongolite

Examples

#buildRegexQuery(c("koln","koeln","berlin"), timestamp = getInterval(
#inputinterval = c("2016-01-04 18:37:43 CET","2016-01-05 18:37:43 CET")))

#hometimeline$find(buildRegexQuery(c("koln","koeln"),timestamp = getInterval(60*24)),
#getMongoFields(c("text","entitites.hashtags.text")))

ProjectTw/TwitteR2Mongo documentation built on May 8, 2019, 3:44 a.m.