hi to everybody ! :-) before ask something I prefer to say sorry for may bad 
english and sorry because I'm a junior developer of rails, in last 3 days I've 
tried to visualize some statistics in rails but I found a lot of problem 
somebody can help me ? I leave my DB struct if someone have some good idea

THIS IS WHAT I TRY TO DO: I've tried to visualize some data in a table for know 
how many event I've all day, and visualize: TOTAL PRICE, TOTAL_EVENT, TOTAL_PAX 
every day, if you see the DB table you can see I use a date range for every 
Event, and there I become to get MAD ! in the DB every event ha the struct

event  price pax  room_numer start_date      end_date
1          2        2     1                   10-10-2015  12-10-2015
2          3       12    2                   8-10-2015    18-10-2015
3          2        20   3                   12-10-2015  17-10-2015

AND this is what I want visualize

data        total_event      total_price     total_pax
08/10        1                     2                    12
09/10        1                     2                    12
10/10        2                     5                    14
11/10        2                     5                    14
12/10        3                     4                    34
13/10        2                     4                    22
14/10        2                     4                    22
15/10        2                     4                    22
16/10        2                     4                    22
17/10        2                     4                    22
18/10        1                     2                    12
19/10        0                     0                    0

for made that I need to use a model because I've 3 view... week / month / year 
and I think is better use one Method ? right ?

somebody can help me ?

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