--- /dev/null
+from unfold.plugin import Plugin
+
+class QueryGrid (Plugin):
+
+ """A plugin for displaying a query as a list
+
+More accurately, we consider a subject entity (say, a slice)
+that can be linked to any number of related entities (say, resources, or users)
+The 'query' argument will correspond to the subject, while
+'query_all' will fetch the complete list of
+possible candidates for the relationship.
+
+Current implementation makes the following assumptions
+* query will only retrieve for the related items a list of fields
+ that corresponds to the initial set of fields displayed in the table
+* query_all on the contrary is expected to return the complete set of
+ available attributes that may be of interest, so that using a QueryEditor
+ one can easily extend this table without having to query the backend
+* checkboxes is a boolean flag, set to true if a rightmost column
+ with checkboxes is desired
+* optionally pass columns as the initial set of columns
+ if None then this is taken from the query's fields
+* id_key is the name of a column used internally in the plugin
+ for checkboxes management. Caller should specify a column that is present
+ in the fields returned by 'query' and that has unique values.
+ If not specified, metadata will be used to find out a primary key.
+ However in the case of nodes & slice for example, the default key
+ as returned by the metadata would be 'urn', but it is not necessarily
+ a good idea to show urn's initially - if at all.
+ This is why a slice view would use 'hrn' here instead.
+* datatables_options are passed to dataTables as-is;
+ however please refrain from passing an 'aoColumns'
+ as we use 'aoColumnDefs' instead.
+"""
+
+ def __init__ (self, query=None, query_all=None,
+ checkboxes=False, columns=None,
+ id_key=None,
+ datatables_options={}, **settings):
+ Plugin.__init__ (self, **settings)
+ self.query = query
+ # Until we have a proper way to access queries in Python
+ self.query_all = query_all
+ self.query_all_uuid = query_all.query_uuid if query_all else None
+ self.checkboxes = checkboxes
+ # XXX We need to have some hidden columns until we properly handle dynamic queries
+ if columns is not None:
+ self.columns=columns
+ self.hidden_columns = []
+ elif self.query:
+ self.columns = self.query.fields
+ if query_all:
+ # We need a list because sets are not JSON-serializable
+ self.hidden_columns = list(self.query_all.fields - self.query.fields)
+ else:
+ self.hidden_columns = []
+ else:
+ self.columns = []
+ self.hidden_columns = []
+ # needs to be json-serializable, and sets are not
+ self.columns=list(self.columns)
+ self.id_key=id_key
+ self.datatables_options=datatables_options
+ # if checkboxes were required, we tell datatables about this column's type
+ # so that sorting can take place on a selected-first basis (or -last of course)
+ # this relies on the template exposing the checkboxes 'th' with class 'checkbox'
+ if self.checkboxes:
+ # we use aoColumnDefs rather than aoColumns -- ignore user-provided aoColumns
+ if 'aoColumns' in self.datatables_options:
+ print 'WARNING: querygrid uses aoColumnDefs, your aoColumns spec. is discarded'
+ del self.datatables_options['aoColumns']
+ # set aoColumnDefs in datatables_options - might already have stuff in there
+ aoColumnDefs = self.datatables_options.setdefault ('aoColumnDefs',[])
+ # here 'checkbox' is the class that we give to the <th> dom elem
+ # dom-checkbox is a sorting type that we define in querygrid.js
+ aoColumnDefs.append ( {'aTargets': ['checkbox'], 'sSortDataType': 'dom-checkbox' } )
+
+ def template_file (self):
+ return "querygrid.html"
+
+ def template_env (self, request):
+ env={}
+ env.update(self.__dict__)
+ env['columns']=self.columns
+ return env
+
+ def requirements (self):
+ reqs = {
+ 'js_files' : [
+ "js/spin.presets.js", "js/spin.min.js", "js/jquery.spin.js",
+# this one was in the slickgrid demo
+# http://mleibman.github.io/SlickGrid/examples/example-checkbox-row-select.html
+# but triggers js errors when included - probably/maybe because of the jquery version ?
+# it might be responsible for not being able to select a row by clicking anywhere in it ?
+# "http://mleibman.github.io/SlickGrid/lib/jquery-ui-1.8.16.custom.min.js",
+ "js/jquery.event.drag-2.2.js", # from slickgrid/lib
+ "js/slick.core.js",
+ "js/slick.autotooltips.js", # from slickgrid/plugins/
+ "js/slick.cellrangedecorator.js", # from slickgrid/plugins/
+ "js/slick.cellrangeselector.js", # from slickgrid/plugins/
+ "js/slick.cellcopymanager.js", # from slickgrid/plugins/
+ "js/slick.cellselectionmodel.js", # from slickgrid/plugins/
+ "js/slick.rowselectionmodel.js", # from slickgrid/plugins/
+ "js/slick.checkboxselectcolumn.js", # from slickgrid/plugins/
+ "js/slick.columnpicker.js", # from slickgrid/controls/
+ "js/slick.formatters.js",
+ "js/slick.editors.js",
+ "js/slick.grid.js",
+ "js/slick.dataview.js",
+
+# "js/dataTables.js", "js/dataTables.bootstrap.js", "js/with-datatables.js",
+ "js/manifold.js", "js/manifold-query.js",
+ "js/unfold-helper.js",
+ # querygrid.js needs to be loaded after dataTables.js as it extends
+ # dataTableExt.afnSortData
+ "js/querygrid.js",
+ ] ,
+ 'css_files': [
+# "css/dataTables.bootstrap.css",
+ # hopefully temporary, when/if datatables supports sPaginationType=bootstrap3
+ # for now we use full_numbers, with our own ad hoc css
+# "css/dataTables.full_numbers.css",
+ "css/querygrid.css" ,
+ "http://mleibman.github.io/SlickGrid/slick.grid.css",
+# "http://mleibman.github.io/SlickGrid/css/smoothness/jquery-ui-1.8.16.custom.css",
+# "http://mleibman.github.io/SlickGrid/examples/examples.css",
+ ],
+ }
+ return reqs
+
+ # the list of things passed to the js plugin
+ def json_settings_list (self):
+ return ['plugin_uuid', 'domid',
+ 'query_uuid', 'query_all_uuid',
+ 'checkboxes', 'datatables_options',
+ 'columns','hidden_columns',
+ 'id_key',]
git://git.onelab.eu / myslice.git / blobdiff