[IMP] DataGroup API doc
bzr revid: xmo@openerp.com-20110511121021-ivie7r93fc6u6quf
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@ -4,7 +4,15 @@ openerp.base.data = function(openerp) {
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openerp.base.DataGroup = openerp.base.Controller.extend( /** @lends openerp.base.DataGroup# */{
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/**
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* Management interface between views and grouped collections of OpenERP
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* records
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* records.
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*
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* The root DataGroup is instantiated with the relevant information
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* (a session, a model, a domain, a context and a group_by sequence), the
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* domain and context may be empty. It is then interacted with via
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* :js:func:`~openerp.base.DataGroup.list`, which is used to read the
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* content of the current grouping level, and
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* :js:func:`~openerp.base.DataGroup.get`, which is used to fetch an item
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* of the current grouping level.
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*
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* @constructs
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* @extends openerp.base.Controller
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@ -26,6 +34,7 @@ openerp.base.DataGroup = openerp.base.Controller.extend( /** @lends openerp.bas
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this.groups = null;
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},
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fetch: function () {
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// internal method
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var d = new $.Deferred();
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var self = this;
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@ -59,8 +68,8 @@ openerp.base.DataGroup = openerp.base.Controller.extend( /** @lends openerp.bas
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return d.promise();
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},
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/**
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* Retrieves the content of the nth-level item in the DataGroup, which
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* results in either a DataSet or a DataGroup instance.
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* Retrieves the content of an item in the DataGroup, which results in
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* either a DataSet or new DataGroup instance.
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*
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* Calling :js:func:`~openerp.base.DataGroup.get` without having called
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* :js:func:`~openerp.base.DataGroup.list` beforehand will likely result
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@ -95,7 +104,33 @@ openerp.base.DataGroup = openerp.base.Controller.extend( /** @lends openerp.bas
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}
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},
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/**
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* Provides a list of all top-level items of the data group.
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* Gathers the content of the current data group (the current grouping
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* level), and provides it via a promise object to which callbacks should
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* be added::
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*
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* datagroup.list().then(function (list) {
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* // manipulate list here
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* });
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*
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* The argument to the callback is the list of elements fetched, the
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* context (``this``) is the datagroup itself.
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*
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* The items of a list are the standard objects returned by ``read_group``
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* with three properties added:
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*
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* ``length``
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* the number of records contained in the group (and all of its
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* sub-groups). This does *not* provide the size of the "next level"
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* of the group, unless the group is terminal (no more groups within
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* it).
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* ``grouped_on``
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* the name of the field this level was grouped on, this is mostly
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* used for display purposes, in order to know the name of the current
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* level of grouping. The ``grouped_on`` should be the same for all
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* objects of the list.
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* ``value``
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* the value which led to this group (this is the value all contained
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* records have for the current ``grouped_on`` field name).
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*
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* @returns {$.Deferred}
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*/
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@ -307,8 +307,6 @@ Javascript
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:returns: the dataset's current active id
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.. js:class:: openerp.base.DataRecord(session, model, fields, values)
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Ad-hoc objects and structural types
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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