details: http://www.bx.psu.edu/hg/galaxy/rev/4733c3b69226 changeset: 2790:4733c3b69226 user: jeremy goecks <jeremy.goecks at emory.edu> date: Mon Sep 28 10:29:23 2009 -0400 description: Paging for grids.
2 file(s) affected in this change:
lib/galaxy/web/framework/helpers/grids.py templates/history/grid.mako
diffs (128 lines):
diff -r d669408018a1 -r 4733c3b69226 lib/galaxy/web/framework/helpers/grids.py --- a/lib/galaxy/web/framework/helpers/grids.py Sun Sep 27 23:11:43 2009 -0400 +++ b/lib/galaxy/web/framework/helpers/grids.py Mon Sep 28 10:29:23 2009 -0400 @@ -4,7 +4,7 @@ from galaxy.web import url_for from galaxy.util.json import from_json_string, to_json_string
-import sys, logging +import sys, logging, math
log = logging.getLogger( __name__ )
@@ -23,6 +23,10 @@ default_filter = None default_sort_key = None preserve_state = False + + use_paging = False + num_rows_per_page = 5 + # Set preference names. cur_filter_pref_name = ".filter" cur_sort_key_pref_name = ".sort_key" @@ -90,7 +94,7 @@ column_filter = unicode(column_filter) extra_url_args[ "f-" + column.key ] = column_filter.encode("utf-8")
- # Process sort arguments + # Process sort arguments. sort_key = sort_order = None if 'sort' in kwargs: sort_key = kwargs['sort'] @@ -110,7 +114,26 @@ # There might be a current row current_item = self.get_current_item( trans )
- # Save current filter and sort key. + # Process page number. + if self.use_paging: + if 'page' in kwargs: + page_num = int( kwargs['page'] ) + else: + page_num = 1 + + # Before modifying query, get the total number of rows that query returns so that the total number of pages can + # be computed. + total_num_rows = query.count() + query = query.limit( self.num_rows_per_page ).offset( ( page_num-1 ) * self.num_rows_per_page ) + + num_pages = int ( math.ceil( float( total_num_rows ) / self.num_rows_per_page ) ) + else: + # Defaults. + page_num = 1 + num_pages = 1 + + + # Preserve grid state: save current filter and sort key. if self.preserve_state: pref_name = unicode( self.__class__.__name__ + self.cur_filter_pref_name ) if not saved_filter_pref: @@ -146,9 +169,13 @@ else: new_kwargs[ 'id' ] = trans.security.encode_id( id ) return url_for( **new_kwargs ) + + return trans.fill_template( self.template, grid=self, query=query, + cur_page_num = page_num, + num_pages = num_pages, cur_filter_dict=cur_filter_dict, sort_key=sort_key, encoded_sort_key=encoded_sort_key, diff -r d669408018a1 -r 4733c3b69226 templates/history/grid.mako --- a/templates/history/grid.mako Sun Sep 27 23:11:43 2009 -0400 +++ b/templates/history/grid.mako Mon Sep 28 10:29:23 2009 -0400 @@ -299,20 +299,36 @@ </tr> %endfor </tbody> - %if grid.operations: - <tfoot> - <tr> - <td></td> - <td colspan="100"> - For <span class="grid-selected-count"></span> selected histories: - %for operation in grid.operations: - %if operation.allow_multiple: - <input type="submit" name="operation" value="${operation.label}" class="action-button"> - %endif - %endfor - </td> - </tr> - </tfoot> + <tfoot> + %if num_pages > 1: + <tr> + <td></td> + <td colspan="100" style="font-size: 90%; text-align: right"> + Page: + %for page_index in range(1, num_pages + 1): + %if page_index == cur_page_num: + <span style="font-style: italic">${page_index}</span> + %else: + <% args = { "page" : page_index } %> + <span><a href="${url( args )}">${page_index}</a></span> + %endif + %endfor + </td> + </tr> + %endif + %if grid.operations: + <tr> + <td></td> + <td colspan="100"> + For <span class="grid-selected-count"></span> selected histories: + %for operation in grid.operations: + %if operation.allow_multiple: + <input type="submit" name="operation" value="${operation.label}" class="action-button"> + %endif + %endfor + </td> + </tr> + </tfoot> %endif </table> </form>