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Alexandra Rogova
jio_mebibou
Commits
032cc5bc
Commit
032cc5bc
authored
Jul 17, 2013
by
Tristan Cavelier
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queries sortOn improved to manage specific metadata values
parent
4af11862
Changes
1
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with
67 additions
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2 deletions
+67
-2
src/queries/tool.js
src/queries/tool.js
+67
-2
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src/queries/tool.js
View file @
032cc5bc
...
...
@@ -17,6 +17,33 @@ function stringEscapeRegexpCharacters(string) {
_export
(
"
stringEscapeRegexpCharacters
"
,
stringEscapeRegexpCharacters
);
/**
* Convert metadata values to array of strings. ex:
*
* "a" -> ["a"],
* {"content": "a"} -> ["a"]
*
* @param {Any} value The metadata value
* @return {Array} The value in string array format
*/
function
metadataValueToStringArray
(
value
)
{
var
i
,
new_value
=
[];
if
(
value
===
undefined
)
{
return
undefined
;
}
if
(
!
Array
.
isArray
(
value
))
{
value
=
[
value
];
}
for
(
i
=
0
;
i
<
value
.
length
;
i
+=
1
)
{
if
(
typeof
value
[
i
]
===
'
object
'
)
{
new_value
[
i
]
=
value
[
i
].
content
;
}
else
{
new_value
[
i
]
=
value
[
i
];
}
}
return
new_value
;
}
/**
* A sort function to sort items by key
*
...
...
@@ -27,12 +54,50 @@ _export("stringEscapeRegexpCharacters", stringEscapeRegexpCharacters);
function
sortFunction
(
key
,
way
)
{
if
(
way
===
'
descending
'
)
{
return
function
(
a
,
b
)
{
return
a
[
key
]
<
b
[
key
]
?
1
:
a
[
key
]
>
b
[
key
]
?
-
1
:
0
;
// this comparison is 5 times faster than json comparison
var
i
,
l
;
a
=
metadataValueToStringArray
(
a
[
key
])
||
[];
b
=
metadataValueToStringArray
(
b
[
key
])
||
[];
l
=
a
.
length
>
b
.
length
?
a
.
length
:
b
.
length
;
for
(
i
=
0
;
i
<
l
;
i
+=
1
)
{
if
(
a
[
i
]
===
undefined
)
{
return
1
;
}
if
(
b
[
i
]
===
undefined
)
{
return
-
1
;
}
if
(
a
[
i
]
>
b
[
i
])
{
return
-
1
;
}
if
(
a
[
i
]
<
b
[
i
])
{
return
1
;
}
}
return
0
;
};
}
if
(
way
===
'
ascending
'
)
{
return
function
(
a
,
b
)
{
return
a
[
key
]
>
b
[
key
]
?
1
:
a
[
key
]
<
b
[
key
]
?
-
1
:
0
;
// this comparison is 5 times faster than json comparison
var
i
,
l
;
a
=
metadataValueToStringArray
(
a
[
key
])
||
[];
b
=
metadataValueToStringArray
(
b
[
key
])
||
[];
l
=
a
.
length
>
b
.
length
?
a
.
length
:
b
.
length
;
for
(
i
=
0
;
i
<
l
;
i
+=
1
)
{
if
(
a
[
i
]
===
undefined
)
{
return
-
1
;
}
if
(
b
[
i
]
===
undefined
)
{
return
1
;
}
if
(
a
[
i
]
>
b
[
i
])
{
return
1
;
}
if
(
a
[
i
]
<
b
[
i
])
{
return
-
1
;
}
}
return
0
;
};
}
throw
new
TypeError
(
"
complex_queries.sortFunction():
"
+
...
...
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