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Junming
jio
Commits
da14197d
Commit
da14197d
authored
Mar 03, 2014
by
Tristan Cavelier
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Js, html and rst updated according to queries
parent
60ff4878
Changes
4
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4 changed files
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62 deletions
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-62
docs/complex_queries.rst
docs/complex_queries.rst
+33
-39
docs/keys.rst
docs/keys.rst
+4
-10
examples/example-queries.html
examples/example-queries.html
+1
-6
src/jio.storage/gidstorage.js
src/jio.storage/gidstorage.js
+3
-7
No files found.
docs/complex_queries.rst
View file @
da14197d
...
...
@@ -68,8 +68,7 @@ Example:
['last_modified', 'descending'],
['creation_date', 'descending']
],
select_list: ['title'],
wildcard_character: '%'
select_list: ['title']
};
// execution
...
...
@@ -93,7 +92,7 @@ for how to use these methods, in and outside jIO. The module provides:
select: [Function: select],
sortOn: [Function: sortOn],
limit: [Function: limit],
convertStringToRegExp: [Function: convertString
ToRegExp],
searchTextToRegExp: [Function: searchText
ToRegExp],
QueryFactory: { [Function: QueryFactory] create: [Function] },
Query: [Function: Query],
SimpleQuery: {
...
...
@@ -161,16 +160,18 @@ are available in the index.
Matching properties
^^^^^^^^^^^^^^^^^^^
Complex Queries select items which exactly match the value given in the
query. You can use wildcards ('%' is the default wildcard character), and you
can change the wildcard character in the query options object. If you don't
want to use a wildcard, just set the wildcard character to an empty string.
Complex Queries select items which exactly match the value given in the query
but you can also use wildcards (``%``). If you don't want to use a wildcard,
just set the operator to ``=``.
.. code-block:: javascript
var query = {
query: 'creator:"* Doe"',
wildcard_character: '*'
var option = {
query: 'creator:"% Doe"' // use wildcard
};
var option = {
query: 'creator:="25%"' // don't use wildcard
};
...
...
@@ -191,24 +192,22 @@ Example, convert Query object into a human readable string:
.. code-block:: javascript
var query = complex_queries.QueryFactory.
create('year: < 2000 OR title: "*
a"'),
create('year: < 2000 OR title: "%
a"'),
option = {
wildcard_character: '*',
limit: [0, 10]
},
human_read = {
"": "matches ",
"<": "is lower than ",
"<=": "is lower or equal than ",
">": "is greater than ",
">=": "is greater or equal than ",
"=": "
matches
",
"!=": "
doesn't match
"
"=": "
is equal to
",
"!=": "
is different than
"
};
query.onParseStart = function (object, option) {
object.start = "The wildcard character is '" +
(option.wildcard_character || "%") +
"' and we need only the " +
object.start = "We need only the " +
option.limit[1] +
" elements from the number " +
option.limit[0] + ". ";
...
...
@@ -216,16 +215,15 @@ Example, convert Query object into a human readable string:
query.onParseSimpleQuery = function (object, option) {
object.parsed = object.parsed.key +
" " + human_read[object.parsed.operator] +
" " + human_read[object.parsed.operator
|| ""
] +
object.parsed.value;
};
query.onParseComplexQuery = function (object, option) {
object.parsed = "I want all document where " +
object.parsed.query_list.join(" " +
object.parsed.operator.toLowerCase() +
" ") +
". ";
object.parsed.query_list.join(
" " + object.parsed.operator.toLowerCase() + " "
) + ". ";
};
query.onParseEnd = function (object, option) {
...
...
@@ -233,10 +231,8 @@ Example, convert Query object into a human readable string:
};
console.log(query.parse(option));
// logged: "The wildcard character is '*' and we need
// only the 10 elements from the number 0. I want all
// document where year is lower than 2000 or title
// matches *a. Thank you!"
// logged: "We need only the 10 elements from the number 0. I want all
// document where year is lower than 2000 or title matches %a. Thank you!"
JSON Schemas and Grammar
...
...
@@ -276,8 +272,8 @@ Below you can find schemas for constructing queries.
}
}
}
* Simple Queries JSON Schema:
.. code-block:: javascript
...
...
@@ -293,8 +289,8 @@ Below you can find schemas for constructing queries.
},
"operator": {
"type": "string",
"default": "
=
",
"format": "(>=?|<=?|!?=)",
"default": "",
"format": "(>=?|<=?|!?=
|
)",
"description": "The operator used to compare."
},
"id": {
...
...
@@ -318,28 +314,28 @@ Below you can find schemas for constructing queries.
: and_expression
| and_expression search_text
| and_expression OR search_text
and_expression
: boolean_expression
| boolean_expression AND and_expression
boolean_expression
: NOT expression
| expression
expression
: ( search_text )
| COLUMN expression
| value
value
: OPERATOR string
| string
string
: WORD
| STRING
terminal:
OR -> /OR[ ]/
AND -> /AND[ ]/
...
...
@@ -350,7 +346,5 @@ Below you can find schemas for constructing queries.
OPERATOR -> /(>=?|<=?|!?=)/
LEFT_PARENTHESE -> /\(/
RIGHT_PARENTHESE -> /\)/
ignore: " "
ignore: " "
docs/keys.rst
View file @
da14197d
...
...
@@ -17,15 +17,13 @@ Let's start with a simple search:
}
Each of the ``.someproperty`` attribute in objects' metadata is compared with
``comparison_value`` through a function defined by the '=' operator. Normally,
it would be a string match that uses the wildcard_character, if present.
``comparison_value`` through a function defined by the '=' operator.
You can provide your own function to be used as '=' operator:
.. code-block:: javascript
var strictEqual = function (object_value, comparison_value,
wildcard_character) {
var strictEqual = function (object_value, comparison_value) {
return comparison_value === object_value;
};
...
...
@@ -38,7 +36,7 @@ You can provide your own function to be used as '=' operator:
value: comparison_value
}
Inside ``equal_match``, you can decide to interpret the
``wildcard_character
``
Inside ``equal_match``, you can decide to interpret the
wildcard character ``%
``
or just ignore it, as in this case.
If you need to convert or preprocess the values before comparison, you can provide
...
...
@@ -145,7 +143,7 @@ property, that behaves like the ``compareFunction`` described in
...
return {
...
'cmp': function (b
, wildcard_character
) {
'cmp': function (b) {
if (a < b) {
return -1;
}
...
...
@@ -161,8 +159,6 @@ property, that behaves like the ``compareFunction`` described in
cast_to: myType
...
``wildcard_character`` is only passed by ``=`` and ``!=`` operators.
If the < or > comparison makes no sense for the objects, the function should return ``undefined``.
The ``.cmp()`` property is also used, if present, by the sorting feature of complex queries.
...
...
@@ -280,5 +276,3 @@ A schema can be used:
application_name: '...',
key_schema: key_schema
});
examples/example-queries.html
View file @
da14197d
...
...
@@ -16,16 +16,12 @@
<table>
<tr>
<td>
Query (String):
<br
/><textarea
id=
"str"
>
title:abc AND format:def
</textarea></td>
<td>
Query (Object):
<br
/><textarea
id=
"obj"
>
{
"
type
"
:
"
complex
"
,
"
operator
"
:
"
AND
"
,
"
query_list
"
:[{
"
type
"
:
"
simple
"
,
"
operator
"
:
"
=
"
,
"
key
"
:
"
title
"
,
"
value
"
:
"
abc
"
},{
"
type
"
:
"
simple
"
,
"
operator
"
:
"
=
"
,
"
key
"
:
"
format
"
,
"
value
"
:
"
def
"
}]}
</textarea></td>
<td>
Query (Object):
<br
/><textarea
id=
"obj"
>
{
"
type
"
:
"
complex
"
,
"
operator
"
:
"
AND
"
,
"
query_list
"
:[{
"
type
"
:
"
simple
"
,
"
key
"
:
"
title
"
,
"
value
"
:
"
abc
"
},{
"
type
"
:
"
simple
"
,
"
key
"
:
"
format
"
,
"
value
"
:
"
def
"
}]}
</textarea></td>
</tr>
<tr>
<td>
Item list (to filter, from 'Query (Object)'):
<br
/><textarea
id=
"list"
>
[{
"
title
"
:
"
abc
"
,
"
format
"
:
"
def
"
},{
"
title
"
:
"
def
"
,
"
format
"
:
"
abc
"
}]
</textarea></td>
<td>
Result list:
<br
/><textarea
id=
"result"
></textarea></td>
</tr>
<tr>
<td><label
for=
"wildcard"
>
Wildcard char:
</label></td>
<td><input
type=
"text"
id=
"wildcard"
name=
"wildcard"
value=
"%"
/></td>
</tr>
<tr>
<td><label
for=
"sort_on"
>
Sort on:
</label></td>
<td><input
type=
"text"
id=
"sort_on"
name=
"sort_on"
value=
"[["title","ascending"],["format","descending"]]"
/></td>
...
...
@@ -77,7 +73,6 @@ function query() {
).
exec
(
list
,
{
"
wildcard_character
"
:
$
(
'
#wildcard
'
).
attr
(
'
value
'
),
"
sort_on
"
:
JSON
.
parse
(
$
(
"
#sort_on
"
).
attr
(
"
value
"
)),
"
limit
"
:
JSON
.
parse
(
$
(
"
#limit
"
).
attr
(
"
value
"
)),
"
select_list
"
:
JSON
.
parse
(
$
(
"
#select_list
"
).
attr
(
"
value
"
))
...
...
src/jio.storage/gidstorage.js
View file @
da14197d
...
...
@@ -321,8 +321,7 @@
}
complex_query
=
gidToComplexQuery
(
gid
);
command
.
storage
(
priv
.
sub_storage
).
allDocs
({
"
query
"
:
complex_query
,
"
wildcard_character
"
:
null
"
query
"
:
complex_query
}).
then
(
function
(
response
)
{
var
update_method
=
method
;
response
=
response
.
data
;
...
...
@@ -381,8 +380,7 @@
}
complex_query
=
gidToComplexQuery
(
gid_object
);
command
.
storage
(
priv
.
sub_storage
).
allDocs
({
"
query
"
:
complex_query
,
"
wildcard_character
"
:
null
"
query
"
:
complex_query
}).
then
(
function
(
response
)
{
response
=
response
.
data
;
if
(
response
.
total_rows
===
0
)
{
...
...
@@ -459,7 +457,6 @@
complex_query
=
gidToComplexQuery
(
gid_object
);
command
.
storage
(
priv
.
sub_storage
).
allDocs
({
"
query
"
:
complex_query
,
"
wildcard_character
"
:
null
,
"
include_docs
"
:
true
}).
then
(
function
(
response
)
{
response
=
response
.
data
;
...
...
@@ -507,8 +504,7 @@
}
complex_query
=
gidToComplexQuery
(
gid_object
);
command
.
storage
(
priv
.
sub_storage
).
allDocs
({
"
query
"
:
complex_query
,
"
wildcard_character
"
:
null
"
query
"
:
complex_query
}).
then
(
function
(
response
)
{
response
=
response
.
data
;
if
(
response
.
total_rows
===
0
)
{
...
...
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