{
"service " : "namespace",
"name" : "test ",
"name" : "abc",
}
I need to replace the first occurrence of name as
"name" : "test 12-12-34 12:09"
and the value "12-12-34 12:09" is in some another variable that we can access using $date
Related
I have this type of data :
--Line1 : val1=10; val2=20; val3=30
--Line2 : val1=11; val2=21; val3=31
--Line3 : val1=12; val2=22; val3=32
--Line4 : val1=13; val2=23; val3=33
--Line5 : val1=14; val2=24; val3=34
--Line6 : val1=15; val2=25; val3=35
--Line7 : val1=16; val2=26; val3=30
Now, i am trying to write a script to get any particular value (say val1 for Line4) on the basis of string "Line1", Line2, etc.
Any hint? Working in linux.
I have some products that I'm indexing that go something like "99% chocolate". If I search for chocolate, it matches this particular item, but if I search for "99", it doesn't match. I came across this Using django haystack autocomplete with elasticsearch to search for digits/numbers? which had the same issue, but nobody has answered his question. Can someone please help?
Edit2: I'm sorry I neglected to include an important detail. The numeric search itself works, but the autocomplete doesn't work. I'm including the relevant lines:
#the relevant line in my index
name_auto = indexes.EdgeNgramField(model_attr='name')
#the relevant line in my view
prodSqs = SearchQuerySet().models(Product).autocomplete(name_auto=request.GET.get('q', ''))
Edit: following are the results of running the analyser:
curl -XGET 'localhost:9200/haystack/_analyze?analyzer=standard&pretty' -d '99% chocolate'
{
"tokens" : [ {
"token" : "99",
"start_offset" : 0,
"end_offset" : 2,
"type" : "<NUM>",
"position" : 1
}, {
"token" : "chocolate",
"start_offset" : 4,
"end_offset" : 13,
"type" : "<ALPHANUM>",
"position" : 2
} ]
}
finally found the answer here: ElasticSearch: EdgeNgrams and Numbers
Add the following classes and change the Engine under Haystack_connections in settings file to use CustomElasticsearchSearchEngine below instead of default haystack one:
class CustomElasticsearchBackend(ElasticsearchSearchBackend):
"""
The default ElasticsearchSearchBackend settings don't tokenize strings of digits the same way as words, so they
get lost: the lowercase tokenizer is the culprit. Switching to the standard tokenizer and doing the case-
insensitivity in the filter seems to do the job.
"""
def __init__(self, connection_alias, **connection_options):
# see https://stackoverflow.com/questions/13636419/elasticsearch-edgengrams-and-numbers
self.DEFAULT_SETTINGS['settings']['analysis']['analyzer']['edgengram_analyzer']['tokenizer'] = 'standard'
self.DEFAULT_SETTINGS['settings']['analysis']['analyzer']['edgengram_analyzer']['filter'].append('lowercase')
super(CustomElasticsearchBackend, self).__init__(connection_alias, **connection_options)
class CustomElasticsearchSearchEngine(ElasticsearchSearchEngine):
backend = CustomElasticsearchBackend
Running you string 99% chocolate through the standard analyser gives the right results (99 is a term on its own), so if you're not using it currently, you should switch to it.
curl -XGET 'localhost:9200/myindex/_analyze?analyzer=standard&pretty' -d '99% chocolate'
{
"tokens" : [ {
"token" : "99",
"start_offset" : 0,
"end_offset" : 2,
"type" : "<NUM>",
"position" : 1
}, {
"token" : "chocolate",
"start_offset" : 4,
"end_offset" : 13,
"type" : "<ALPHANUM>",
"position" : 2
} ]
}
I have this hash
- "title" : "The Today Show",
- "category; "Show",
- "channel-name": "CNBC",
- "scheduling" =>
{ "start" : "7am", "stop" : "9am"},
{ "start" : "10am", "stop" : "11am"},
{ "start" : "11am", "stop": "12am"}
- "title" : "How I met your mother",
- "category; "Show",
- "channel-name": "CBS",
- "scheduling" =>
{ "start" : "7pm", "stop" : "9pm"},
{ "start" : "10pm", "stop" : "12pm"},
{ "start" : "11am", "stop": "12am"}
I need to "select" only programs which have at least one schedule beetween "7pm"-"9pm"
I tried this, but it isn't working
programs.select_by{|p|
p.scheduling.each{|ps|
ps.start <= "7pm" && ps.stop <= "9pm"
}
}
PS: I used a pseudo-code for the date-comparison just to make this code more readable :)
Try this
programs.select do |p|
p.scheduling.any? do |ps|
ps.start >= "7pm" && ps.stop <= "9pm"
end
end
I am using the jdbc river for elasticsearch to index mysql table data.
My River:
curl -XPUT 'localhost:9200/_river/river_mention_reports/_meta' -d '{
"type" : "jdbc",
"jdbc" : {
"driver" : "com.mysql.jdbc.Driver",
"url" : "jdbc:mysql://localhost:3306/ESTest1_development",
"user" : "root",
"password" : "password",
"sql" : "select * from table where creation_time >= (NOW() - INTERVAL 2 MINUTE)",
"poll" : "2m",
"versioning" : false
},
"index" : {
"index" : "monitoring",
"type" : "mention_reports"
}
}'
SQL query that I have specified in the river is:
select * from table where creation_time >= (NOW() - INTERVAL 2 MINUTE)
Now the problem is, the river after every poll removes the data that was indexed outside the time range(current minus 2 minutes) specified in the query, instead of adding fresh data to the index. The reason I have specified a time range is because I don't want the river to reindex the entire dataset again and again.
You need to specify "digesting": false (it defaults true) in the "jdbc" section of your river configuration, where you have "versioning": false now. BTW, "versioning" defaults to false anyway and actually should be in the "index" section, not the "jdbc" section.
I need to to bulk insert the array of embedded documents to an existing document. I have tried the below code, but it was not working
arr_loc = []
arr_loc << Location.new(:name=> "test") << Location.new(:name=> "test2")
biz = Business.first
biz.locations = arr_loc
biz.save # not working
currently i am inserting each doc separately by looping the array, i hope there is a better cleaner way to do this.
from mongo shell we can easily do this like this
> var mongo = db.things.findOne({name:"mongo"});
> print(tojson(mongo));
{"_id" : "497da93d4ee47b3a675d2d9b" , "name" : "mongo", "type" : "database"}
> mongo.data = { a:1, b:2};
{"a" : 1 , "b" : 2}
> db.things.save(mongo);
> db.things.findOne({name:"mongo"});
{"_id" : "497da93d4ee47b3a675d2d9b" , "name" : "mongo" , "type" : "database", "data" : {"a" : 1 , "b" : 2}}
>
check the link for more info.. is it possible to do this with mongoid?
It turns out to be a problem in calling save method after assignment
biz.locations = arr_loc #this is fine
biz.save # no need for that
Mongoid updates the document on the assignment itself, no explicit save required. Refer this mongoid google group thread (Thanks Nick hoffman) for more info