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Boxiang Sun
gitlab-ce
Commits
a1399c3c
Commit
a1399c3c
authored
9 years ago
by
Valery Sizov
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Merge branch 'quote_string' into 'master'
Adding quote_string to migration See merge request !630
parents
851cfc50
3bc717f0
No related merge requests found
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db/migrate/20150425164647_remove_duplicate_tags.rb
db/migrate/20150425164647_remove_duplicate_tags.rb
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db/migrate/20150425164647_remove_duplicate_tags.rb
View file @
a1399c3c
class
RemoveDuplicateTags
<
ActiveRecord
::
Migration
def
up
select_all
(
"SELECT name, COUNT(id) as cnt FROM tags GROUP BY name HAVING COUNT(id) > 1"
).
each
do
|
tag
|
duplicate_ids
=
select_all
(
"SELECT id FROM tags WHERE name = '
#{
tag
[
"name"
]
}
'"
).
map
{
|
tag
|
tag
[
"id"
]}
tag_name
=
quote_string
(
tag
[
"name"
])
duplicate_ids
=
select_all
(
"SELECT id FROM tags WHERE name = '
#{
tag_name
}
'"
).
map
{
|
tag
|
tag
[
"id"
]}
origin_tag_id
=
duplicate_ids
.
first
duplicate_ids
.
delete
origin_tag_id
...
...
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