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fact-gitdep
variety
Commits
f087f0e4
Commit
f087f0e4
authored
Apr 10, 2012
by
James Cropcho
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it's all called 'variety' now
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e0d3bac4
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variety.js
variety.js
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variety.js
View file @
f087f0e4
/* MongoDB Schema Analyzer
/*
Variety: A
MongoDB Schema Analyzer
This tool helps you get a sense of your application's schema, as well as any
This tool helps you get a sense of your application's schema, as well as any
outliers to that schema. Particularly useful when you inherit a codebase with
outliers to that schema. Particularly useful when you inherit a codebase with
data dump and want to quickly learn how the data's structured. Also useful for
data dump and want to quickly learn how the data's structured. Also useful for
finding rare keys.
finding rare keys.
Please see https://github.com/JamesCropcho/
mongodb-schema-analyzer
for details.
Please see https://github.com/JamesCropcho/
variety
for details.
Released by Maypop Inc, © 2012, under the MIT License. */
Released by Maypop Inc, © 2012, under the MIT License. */
print
(
"Variety: A MongoDB Schema Analyzer"
)
print
(
"Version 1.0, released 10 April 2012"
)
if
(
typeof
collection
===
"undefined"
)
{
if
(
typeof
collection
===
"undefined"
)
{
throw
"You have to supply a 'collection' variable, à la --eval 'var collection =
\"
animals
\"
'"
;
throw
"You have to supply a 'collection' variable, à la --eval 'var collection =
\"
animals
\"
'"
;
}
}
...
@@ -16,7 +19,7 @@ if (typeof collection === "undefined") {
...
@@ -16,7 +19,7 @@ if (typeof collection === "undefined") {
if
(
typeof
limit
===
"undefined"
)
{
var
limit
=
db
[
collection
].
count
();
}
if
(
typeof
limit
===
"undefined"
)
{
var
limit
=
db
[
collection
].
count
();
}
print
(
"Using limit of "
+
limit
);
print
(
"Using limit of "
+
limit
);
schemaAnalyzer
CanHaveChildren
=
function
(
v
)
{
variety
CanHaveChildren
=
function
(
v
)
{
var
isArray
=
v
&&
var
isArray
=
v
&&
typeof
v
===
'object'
&&
typeof
v
===
'object'
&&
typeof
v
.
length
===
'number'
&&
typeof
v
.
length
===
'number'
&&
...
@@ -24,25 +27,25 @@ schemaAnalyzerCanHaveChildren = function (v) {
...
@@ -24,25 +27,25 @@ schemaAnalyzerCanHaveChildren = function (v) {
var
isObject
=
typeof
v
===
'object'
;
var
isObject
=
typeof
v
===
'object'
;
return
isArray
||
isObject
;
return
isArray
||
isObject
;
}
}
db
.
system
.
js
.
save
(
{
_id
:
"
schemaAnalyzerCanHaveChildren"
,
value
:
schemaAnalyzer
CanHaveChildren
}
);
db
.
system
.
js
.
save
(
{
_id
:
"
varietyCanHaveChildren"
,
value
:
variety
CanHaveChildren
}
);
schemaAnalyzer
MapRecursive
=
function
(
parentKey
,
keys
)
{
variety
MapRecursive
=
function
(
parentKey
,
keys
)
{
for
(
var
key
in
keys
)
{
for
(
var
key
in
keys
)
{
var
value
=
keys
[
key
];
var
value
=
keys
[
key
];
key
=
(
parentKey
+
"."
+
key
).
replace
(
/
\.\d
+/g
,
'.XX'
);
key
=
(
parentKey
+
"."
+
key
).
replace
(
/
\.\d
+/g
,
'.XX'
);
emit
({
key
:
key
},
{
type
:
schemaAnalyzer
TypeOf
(
value
)});
emit
({
key
:
key
},
{
type
:
variety
TypeOf
(
value
)});
if
(
schemaAnalyzer
CanHaveChildren
(
value
))
{
if
(
variety
CanHaveChildren
(
value
))
{
schemaAnalyzer
MapRecursive
(
key
,
value
);
variety
MapRecursive
(
key
,
value
);
}
}
}
}
}
}
db
.
system
.
js
.
save
({
_id
:
"
schemaAnalyzerMapRecursive"
,
value
:
schemaAnalyzer
MapRecursive
});
db
.
system
.
js
.
save
({
_id
:
"
varietyMapRecursive"
,
value
:
variety
MapRecursive
});
schemaAnalyzer
TypeOf
=
function
(
thing
)
{
variety
TypeOf
=
function
(
thing
)
{
if
(
typeof
thing
===
"undefined"
)
{
throw
"
schemaAnalyzer
TypeOf() requires an argument"
;
}
if
(
typeof
thing
===
"undefined"
)
{
throw
"
variety
TypeOf() requires an argument"
;
}
if
(
typeof
thing
!==
"object"
)
{
if
(
typeof
thing
!==
"object"
)
{
return
typeof
thing
;
return
typeof
thing
;
...
@@ -59,7 +62,7 @@ schemaAnalyzerTypeOf = function(thing) {
...
@@ -59,7 +62,7 @@ schemaAnalyzerTypeOf = function(thing) {
}
}
}
}
}
}
db
.
system
.
js
.
save
({
_id
:
"
schemaAnalyzerTypeOf"
,
value
:
schemaAnalyzer
TypeOf
});
db
.
system
.
js
.
save
({
_id
:
"
varietyTypeOf"
,
value
:
variety
TypeOf
});
map
=
function
()
{
map
=
function
()
{
var
keys
=
this
;
var
keys
=
this
;
...
@@ -71,10 +74,10 @@ map = function() {
...
@@ -71,10 +74,10 @@ map = function() {
// items in an array. -JC
// items in an array. -JC
key
=
key
.
replace
(
/
\.\d
+/g
,
'.XX'
);
key
=
key
.
replace
(
/
\.\d
+/g
,
'.XX'
);
emit
({
key
:
key
},
{
type
:
schemaAnalyzer
TypeOf
(
value
)});
emit
({
key
:
key
},
{
type
:
variety
TypeOf
(
value
)});
if
(
schemaAnalyzer
CanHaveChildren
(
value
))
{
if
(
variety
CanHaveChildren
(
value
))
{
schemaAnalyzer
MapRecursive
(
key
,
value
);
variety
MapRecursive
(
key
,
value
);
}
}
}
}
}
}
...
@@ -97,12 +100,12 @@ var resultsCollectionName = collection + "Keys";
...
@@ -97,12 +100,12 @@ var resultsCollectionName = collection + "Keys";
db
[
collection
].
mapReduce
(
map
,
reduce
,
{
db
[
collection
].
mapReduce
(
map
,
reduce
,
{
out
:
{
out
:
{
replace
:
resultsCollectionName
,
replace
:
resultsCollectionName
,
db
:
"
schemaAnalyzer
Results"
},
db
:
"
variety
Results"
},
limit
:
limit
,
limit
:
limit
,
sort
:
{
_id
:
-
1
},
sort
:
{
_id
:
-
1
},
scope
:
{
limit
:
limit
}});
scope
:
{
limit
:
limit
}});
var
resultsDB
=
db
.
getMongo
().
getDB
(
"
schemaAnalyzer
Results"
);
var
resultsDB
=
db
.
getMongo
().
getDB
(
"
variety
Results"
);
var
numDocuments
=
db
[
collection
].
count
();
var
numDocuments
=
db
[
collection
].
count
();
...
...
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