I have a site where a specific set of data is collected. This is a travel agency website. It is neccesary to determine whether or not an accommodation is still bookable. When I don't select any searchfilters (like destination, classification, facilities etc) I get a working query. The looks like:
SELECT `accommodation` . *
FROM `accommodation`
INNER JOIN (
SELECT `fk_accommodation` , MAX( `dateuntil` ) - ( `releasedays` *60 *60 *24 ) AS `LatestBookableTimestamp`
FROM `priceperiod`
GROUP BY `fk_accommodation`
) AS `pp` ON ( `pp`.`fk_accommodation` = `accommodation`.`id` )
WHERE `pp`.`LatestBookableTimestamp` > UNIX_TIMESTAMP( )
AND `accommodation`.`开发者_运维知识库fk_country` <>0
AND `accommodation`.`classification` >=0
AND `accommodation`.`type` = 'Z'
But when I select a filter (in this case a 'target' filter (children, active, rest, wintersports etc) I get the query:
SELECT `accommodation` . *
FROM `accommodation` , `link_at`
INNER JOIN (
SELECT `fk_accommodation` , MAX( `dateuntil` ) - ( `releasedays` *60 *60 *24 ) AS `LatestBookableTimestamp`
FROM `priceperiod`
GROUP BY `fk_accommodation`
) AS `pp` ON ( `pp`.`fk_accommodation` = `accommodation`.`id` )
WHERE `pp`.`LatestBookableTimestamp` > UNIX_TIMESTAMP( )
AND `accommodation`.`fk_country` <>0
AND `link_at`.`fk_target`
IN ( 10, 2 )
AND `link_at`.`fk_accommodation` = `accommodation`.`id`
AND `accommodation`.`classification` >=0
AND `accommodation`.`type` = 'Z'
Now when I execute this query I get the error: #1054 - Unknown column 'accommodation.id' in 'on clause'
. I think this is because another table is used in the FROM clausule. Does anyone have an idea on how to use the INNER JOIN when multiple tables are queried?
The difficulity caused by a full filtered query...
SELECT
`accommodation`.*
FROM
`accommodation` ,
`link_at` ,
`priceperiod` ,
`link_af`
INNER JOIN (
SELECT
`fk_accommodation`,
MAX( `dateuntil` ) - ( `releasedays` *60 *60 *24 ) AS `LatestBookableTimestamp`
FROM
`priceperiod`
GROUP BY
`fk_accommodation`
) AS `pp`
ON (`pp`.`fk_accommodation` = `accommodation`.`id`)
WHERE
`pp`.`LatestBookableTimestamp` > UNIX_TIMESTAMP()
AND
`accommodation`.`fk_country` <> 0
AND
`link_at`.`fk_target` IN (10 , 2 , 1 , 13 , 6 , 3)
AND
`link_at`.`fk_accommodation` = `accommodation`.`id`
AND
(
(
`priceperiod`.`haslogies` = '1'
AND
( `datefrom` >= 1288216378
OR
`dateuntil` <= 1288216378
)
AND
`accommodation`.`id` = `priceperiod`.`fk_accommodation`
)
OR
(
`priceperiod`.`haslogiesbreakfast` = '1'
AND
(
`datefrom` >= 1288216378
OR
`dateuntil` <= 1288216378
)
AND
`accommodation`.`id` = `priceperiod`.`fk_accommodation`
)
OR
(
`priceperiod`.`hashalfpension` = '1'
AND
(
`datefrom` >= 1288216378
OR
`dateuntil` <= 1288216378
)
AND
`accommodation`.`id` = `priceperiod`.`fk_accommodation`
)
OR
(
`priceperiod`.`hasfullpension` = '1'
AND
(
`datefrom` >= 1288216378
OR
`dateuntil` <= 1288216378
)
AND
`accommodation`.`id` = `priceperiod`.`fk_accommodation`
)
OR
(
`priceperiod`.`hasallinclusive` = '1'
AND
(
`datefrom` >= 1288216378
OR
`dateuntil` <= 1288216378
)
AND
`accommodation`.`id` = `priceperiod`.`fk_accommodation`
)
)
AND
`accommodation`.`id` IN
(
SELECT
`fk_accommodation`
FROM
`link_af`
WHERE
(
`fk_facility` = 13 OR
`fk_facility` = 14 OR
`fk_facility` = 7 OR
`fk_facility` = 27 OR
`fk_facility` = 37 OR
`fk_facility` = 17 OR
`fk_facility` = 24 OR
`fk_facility` = 3
)
GROUP BY
`fk_accommodation`
HAVING count( fk_accommodation ) =8)
AND
(
(
`accommodation`.`fk_accommodationtype` = 14
)
OR
(
`accommodation`.`fk_accommodationtype` = 18
)
OR
(
`accommodation`.`fk_accommodationtype` = 16
)
OR
(
`accommodation`.`fk_accommodationtype` = 19
)
OR
(
`accommodation`.`fk_accommodationtype` = 17
)
)
AND
(
`accommodation`.`isspecialoffer` = 1
OR
`accommodation`.`istip` = 1
)
AND
`accommodation`.`classification` >= 4
AND `accommodation`.`type` = 'Z'
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