README.rst

MYQL
====

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MYQL is a Python wrapper of the Yahoo Query Language.

Yahoo! Query Language Documentation and Support
===============================================

-  Yahoo! Query Language - http://developer.yahoo.com/yql/
-  Yahoo! Developer Network: http://developer.yahoo.com
-  Yahoo! Application Platform - http://developer.yahoo.com/yap/
-  Yahoo! Social APIs - http://developer.yahoo.com/social/
-  Yahoo! QUery Language Console
   https://developer.yahoo.com/yql/console/

Release Notes
=============

v 1.2.2 ( development )
-----------------------

-  Fixed issue with **IN** condition in **where** clause
-  Fixed issue when passing an empty list/tuple (**[]/()**) in a
   **where** clause
-  Import of StockParser from Gurchet Rai
   https://github.com/gurch101/StockScraper OK
   `#68 <https://github.com/josuebrunel/myql/issues/68>`_
-  Insert, Update, Delete methods added
   `#67 <https://github.com/josuebrunel/myql/issues/67>`_
-  Dummy *try/except* removed from main module
-  Fixed **Invalid OAuth Signature** when using a refreshed token
   `#64 <https://github.com/josuebrunel/myql/issues/64>`_
-  Fixed misused of ***MYQL.use(...)***
   `#76 <https://github.com/josuebrunel/myql/issues/76>`_

v 1.2.1
-------

-  Multiple requests while using OAuth fixed

v 1.2.0
-------

-  OpenTable classes
-  Access to resources requiring authentication

v 0.5.6
-------

-  fetch data
-  access to community data
-  select data format (xml/json)
-  change data source
-  filter data
-  fix handling of default and on the fly response format
-  fix limit on ***select(...).where(...)*** when no limit value is
   passed
-  fix limit on ***get(...)***

installation
============

::

    $ pip install myql

how to use
==========

::

    >>> import myql
    >>> yql = myql.MYQL()
    >>> yql.diagnostics = True # To turn diagnostics on

access to community tables
^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    >>> yql = myql.MYQL()
    >>> rep = yql.rawQuery('desc yahoo.finance.quotes ')
    >>> rep.json()
    {u'error': {u'lang': u'en-US', u'description': u'No definition found for Table yahoo.finance.quotes'}}
    >>> yql.community= True # Setting up access to community
    >>> rep = yql.rawQuery('desc yahoo.finance.quotes ')
    >>> rep.json()
    {u'query': {u'count': 1, u'lang': u'en-US', u'results': {u'table': {u'src': u'http://www.datatables.org/yahoo/finance/yahoo.finance.quotes.xml', u'hash': u'061616a1c033ae89aaf2cbe83790b979', u'name': u'yahoo.finance.quotes', u'request': {u'select': {u'key': {u'required': u'true', u'type': u'xs:string', u'name': u'symbol'}}}, u'meta': {u'sampleQuery': u'\n\t\t\tselect * from yahoo.finance.quotes where symbol in ("YHOO","AAPL","GOOG","MSFT")\n\t\t'}, u'security': u'ANY'}}, u'created': u'2014-08-24T11:26:48Z'}}
    >>>

***OR***

::

    >>> import myql
    >>> yql = myql.MYQL(community=True)
    >>> # do your magic 

changing response format (xml or json)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

The response format is by default ***json***.

::

    >>> import myql
    >>> yql = myql.MYQL(format='xml', community=True)
    >>> rep = yql.rawQuery('select name, woeid from geo.states where place="Congo"')
    >>> rep.text
    u'<?xml version="1.0" encoding="UTF-8"?>\n<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" yahoo:count="11" yahoo:created="2014-08-27T04:52:22Z" yahoo:lang="en-US"><results><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Cuvette-Ouest Department</name><woeid>55998384</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Cuvette Department</name><woeid>2344968</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Plateaux District</name><woeid>2344973</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Sangha</name><woeid>2344974</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Lekoumou</name><woeid>2344970</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Pool Department</name><woeid>2344975</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Likouala Department</name><woeid>2344971</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Niari Department</name><woeid>2344972</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Brazzaville</name><woeid>2344976</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Bouenza Department</name><woeid>2344967</woeid></place><place xmlns="http://where.yahooapis.com/v1/schema.rng"><name>Kouilou</name><woeid>2344969</woeid></place></results></query><!-- total: 19 -->\n<!-- engine7.yql.bf1.yahoo.com -->\n'
    >>> rep = yql.rawQuery('select name, woeid from geo.states where place="Congo"', format='json')
    >>> rep.json()
    {u'query': {u'count': 11, u'lang': u'en-US', u'results': {u'place': [{u'woeid': u'55998384', u'name': u'Cuvette-Ouest Department'}, {u'woeid': u'2344968', u'name': u'Cuvette Department'}, {u'woeid': u'2344973', u'name': u'Plateaux District'}, {u'woeid': u'2344974', u'name': u'Sangha'}, {u'woeid': u'2344970', u'name': u'Lekoumou'}, {u'woeid': u'2344975', u'name': u'Pool Department'}, {u'woeid': u'2344971', u'name': u'Likouala Department'}, {u'woeid': u'2344972', u'name': u'Niari Department'}, {u'woeid': u'2344976', u'name': u'Brazzaville'}, {u'woeid': u'2344967', u'name': u'Bouenza Department'}, {u'woeid': u'2344969', u'name': u'Kouilou'}]}, u'created': u'2014-08-27T04:52:38Z'}}
    >>>

Methods
-------

use(data\_provider\_url)
^^^^^^^^^^^^^^^^^^^^^^^^

Changes the data provider

::

    >>> yql.use('http://myserver.com/mytables.xml') 

desc(tablename)
^^^^^^^^^^^^^^^

Returns table description

::

    >>> response = yql.desc('weather.forecast')
    >>> response.json()
    {u'query': {u'count': 1, u'lang': u'en-US', u'results': {u'table': {u'request': {u'select': [{u'key': [{u'required': u'true', u'type': u'xs:string', u'name': u'location'}, {u'type': u'xs:string', u'name': u'u'}]}, {u'key': [{u'required': u'true', u'type': u'xs:string', u'name': u'woeid'}, {u'type': u'xs:string', u'name': u'u'}]}]}, u'security': u'ANY', u'meta': {u'documentationURL': u'http://developer.yahoo.com/weather/', u'sampleQuery': u'select * from weather.forecast where woeid=2502265', u'description': u'Weather forecast table', u'author': u'Yahoo! Inc'}, u'hash': u'aae78b1462a6a8fbc748aec4cf292767', u'name': u'weather.forecast'}}, u'created': u'2014-08-16T19:31:51Z'}}
    >>>

rawQuery(query)
^^^^^^^^^^^^^^^

Allows you to directly type your query

::

    >>> response = yql.rawQuery("select * from geo.countries where place='North America'")
    >>> # deal with the response

select(table, fields, limit).where(filters, ...)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Select a table i.e *weather.forecast*. If *table* not provided, it will
use the default table. If there's no such thing as a default table, it
will raise a *NoTableSelectedError*

***NB*** : A simple select doesn't return any data. Use ***GET***
instead.

::

    >>> response = yql.select('geo.countries', [name, code, woeid]).where(['name', '=', 'Canada'])
    >>> response.json()
    {u'query': {u'count': 1, u'lang': u'en-US', u'results': {u'place': {u'woeid': u'23424775', u'name': u'Canada'}}, u'created': u'2014-08-16T19:04:08Z'}}
    >>> ...
    >>> rep = yql.select('geo.countries', ['name', 'woeid'], 2).where(['place', '=', 'Africa'])
    >>> rep.json()
    {u'query': {u'count': 2, u'lang': u'en-US', u'results': {u'place': [{u'woeid': u'23424740', u'name': u'Algeria'}, {u'woeid': u'23424745', u'name': u'Angola'}]}, u'created': u'2014-08-17T10:52:49Z'}}
    >>>
    >>> rep = yql.select('geo.countries', ['name', 'woeid'], 2).where(['place', 'in', ('Africa', 'Europe')])
    >>> rep.json()
    {u'query': {u'count': 2, u'lang': u'en-US', u'results': {u'place': [{u'woeid': u'23424740', u'name': u'Algeria'}, {u'woeid': u'23424745', u'name': u'Angola'}]}, u'created': u'2014-08-17T11:22:49Z'}}
    >>>

get(table, fields, limit)
^^^^^^^^^^^^^^^^^^^^^^^^^

Same as ***SELECT***, but instead returns data.

**REMINDER** : Some tables require a **where clause**, therefore
***GET*** won't work on those tables, use *select(...).where(...)*
instead .

::

    >>> rep = yql.get('geo.countries', ['name', 'woeid'], 1)
    >>> rep.json()
    {u'query': {u'count': 1, u'lang': u'en-US', u'results': {u'place': {u'woeid': u'23424966', u'name': u'Sao Tome and Principe'}}, u'created': u'2014-08-17T10:32:25Z'}}
    >>>

insert(table, (field1, field2, ..., fieldN),(value1, value2, ..., valueN))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Insert values into a table. Arguments 2 and 3 may be **tuples** or
**list**.

::

    >>> response = yql.insert('yql.storage.admin',('value',),('http://josuebrunel.org',))
    >>> response.json() # result prettyfied just for the example
    {
        "query": {
            "count": 1,
            "created": "2015-05-14T13:25:56Z",
            "lang": "en-US",
            "results": {
                "inserted": {
                    "execute": "store://KkkC5xDw4v32IcWWSQ4YRe",
                    "select": "store://Zc5LHXcmYM7XBfSbo9tzFL",
                    "update": "store://Rqb5fbQyDvrfHJiClWnZ6q"
                }
            }
        }
    }

update(table,[field1, ..., fieldN],[value1, ..., ...valueN]).where(filters, ...)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Update fields values. This method **is always followed by
***where()*****. Arguments 2 and 3 may be **tuples** or **list**.

::

    >>> response = yql.update('yql.storage',('value',),('https://josuebrunel.org',)).where(['name','=','store://Rqb5fbQyDvrfHJiClWnZ6q'])
    >>> response.json() # result prettyfied just for the example
    {
        "query": {
            "count": 1,
            "created": "2015-05-14T13:32:52Z",
            "lang": "en-US",
            "results": {
                "success": "Updated store://KkkC5xDw4v32IcWWSQ4YRe"
            }
        }
    }

delete(table).where(filters, ...)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Delete records \`\`\`python >>> response =
self.yql.delete('yql.storage').where(['name','=','store://Rqb5fbQyDvrfHJiClWnZ6q'])
>>> response.json() # result prettyfied just for the example { "query":
{ "count": 1, "created": "2015-05-14T13:38:28Z", "lang": "en-US",
"results": { "success": "store://Rqb5fbQyDvrfHJiClWnZ6q deleted" } } }

\`\`\`

Using OAuth to fetch protected resources
========================================

::

    >>> from myql.contrib.auth import YOAuth
    >>> oauth = YOAuth(None, None, from_file='credentials.json') # only consumer_key and consumer_secret are required.
    >>> from myql import MYQL
    >>> yql = MYQL(format='xml', oauth=oauth)
    >>> response = yql.getGUID('josue_brunel') # Deal with the response

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