选择一年中的所有日期

Question

I have a list of date and I want them to be enabled in the calendarwidget of my application. The calendar widgets allows me to give only the list of dates that needs to disabled.

I can convert the above dates in to the format 2015-3-6,2015-3-8,2015-3-7,2015-5-4,2015-5-7,2015-5-12,2015-6-16,2015-7-2,2015-10-19

But I need to get the rest of the dates expect the above dates in the calendar in the above format. I am not sure how do I get. Any idea to how I can achieve this is really appreciated

Answer 1

TABLE

CREATE TABLE Available
    (`IsAvailable` datetime);

INSERT INTO Available
    (`IsAvailable`)
VALUES
    ('2015-03-06 00:00:00'),        ('2015-03-08 00:00:00'),
    ('2015-03-07 00:00:00'),        ('2015-05-04 00:00:00'),
    ('2015-05-07 00:00:00'),        ('2015-05-12 00:00:00'),
    ('2015-06-16 00:00:00'),        ('2015-07-02 00:00:00'),
    ('2015-10-19 00:00:00');

SQL Fiddle Demo

select y2015.selected_date,
       IF(Available.`IsAvailable` IS NULL, FALSE, TRUE) as Available
from 
     (select adddate('2015-01-01', t2.i*100 + t1.i*10 + t0.i) selected_date 
      from
         (select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t0,
         (select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t1,
         (select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t2
     ) y2015
LEFT JOIN Available
       ON y2015.selected_date = Available.`IsAvailable`   
where y2015.selected_date < '2016-01-01'

OUTPUT

| selected_date | Available |
|---------------|-----------|
|    2015-03-06 |         1 |   \
|    2015-03-08 |         1 |    \
|    2015-03-07 |         1 |    |
|    2015-05-04 |         1 |    \
|    2015-05-07 |         1 |    /  Those are in Avaliable table
|    2015-05-12 |         1 |    |
|    2015-06-16 |         1 |    |
|    2015-07-02 |         1 |    /
|    2015-10-19 |         1 |   /
|    2015-01-01 |         0 |
|    2015-01-02 |         0 |
|    2015-01-03 |         0 |
|    2015-01-04 |         0 |
|    2015-01-05 |         0 |
|    2015-01-06 |         0 |
|    2015-01-07 |         0 |
....
|    2015-12-31 |         0 |

   Record Count: 365;