File: doc/3-advanced-select-operations.md

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File: doc/3-advanced-select-operations.md
Role: Documentation
Content type: text/markdown
Description: Documentation
Class: XMongoDB
Build and execute queries to a MongoDB database
Author: By
Last change: Changes manual
Date: 5 years ago
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Advanced Select Operations

Where Options

Operators !=, <, >, <=, >=

References: http://docs.mongodb.org/manual/reference/operator/query-comparison/

Where Not Equal

$xmongodb->where_ne('myfield1','value1');

Where Lower Than

$xmongodb->where_lt('myfield1','value1');

Where Lower Or Equal Than

$xmongodb->where_lte('myfield1','value1');

Where Greater Than

$xmongodb->where_gt('myfield1','value1');

Where Greater Or Equal Than

$xmongodb->where_gte('myfield1','value1');

Where In

Finds in 'myfield1' a set of possible values

$xmongodb->where_in('myfield1', array('value1','value2','value3'));

Where Not In

Finds in 'myfield1' where a set of possible values is not found

$xmongodb->where_not_in('myfield1', array('value1','value2','value3'));

Where Between

Finds in 'myfield1' between two values (including equal)

$xmongodb->where_between('myfield1', $x, $y);

For char dates

$xmongodb->where_between('mydate1', '2015-04-29 00:00:00', '2015-04-29 23:59:59');

For ISODates, must to be converted to ISODate

$xmongodb->where_between('mydate1', 'ISODate("2015-04-29T00:00:00.000Z")', 'ISODate("2015-04-29T23:59:59.000Z")');

Where Not Between

Finds in 'myfield1' between two values (not including equal)

$xmongodb->where_between_ne('myfield1', $x, $y);

Like Options

References: http://docs.mongodb.org/manual/reference/operator/query/regex/

Normal Like

$xmongodb->like('myfield1', 'value1', $flags, $disable_start_wildcard , $disable_end_wildcard);

Params:

- flags:

* i = case insensitive (default)
* m = multiline
* x = can contain comments
* l = locale
* s = dotall, "." matches everything, including newlines
* u = match unicode

- disable_start_wildcard

* If TRUE a starting line character "^" will be prepended, default FALSE

- disable_end_wildcard

* If TRUE an ending line character "$" will be appended, default FALSE

Not Like

$xmongodb->not_like('myfield1', array('value1','value2','value3'));

Finds in 'myfield1' that not contains 'value1', 'value2' neither 'value3'

Other Options

Distinct

Distinct can only select only one unique field or subdocument. If the field is a subdocument will return all different subdocuments.

Returns an array of distinct values.

$xmongodb->where(array('myfield1'=>'myvalue1'))->distinct('myfield2');
// OR
$xmongodb->distinct('myfield2',array('myfield1'=>'myvalue1'));

Return an array of differentes 'myfield2' found.

References: http://docs.mongodb.org/manual/reference/operator/query/regex/

Count

Count all documents in a collection

$xmongodb->count('collection');

Returns an integer

Count All Results

Count all documents in a collection using where, limit and offset

$xmongodb->where(array('myfield1'=>'myvalue1'))->count_all('collection');

Returns an integer

References: http://docs.mongodb.org/manual/reference/method/db.collection.count/


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