Module: RailsDb::TablePagination

Included in:
TableData
Defined in:
lib/rails_db/table_pagination.rb

Constant Summary collapse

DEFAULT_PAGINATION_PER_PAGE = 
10

Instance Method Summary collapse

Instance Method Details

#next_page ⇒ Object 



5
6
7
 
# File 'lib/rails_db/table_pagination.rb', line 5

def next_page
  current_page < total_pages ? (current_page + 1) : nil
end

#paginate(options = {}) ⇒ Object 



9
10
11
12
13
14
15
16
 
# File 'lib/rails_db/table_pagination.rb', line 9

def paginate(options = {})
  self.per_page     = (options[:per_page] || DEFAULT_PAGINATION_PER_PAGE).to_i
  self.current_page = (options[:page] || 1).to_i
  self.offset       = (current_page * per_page) - per_page
  self.sort_column  = options[:sort_column]
  self.sort_order   = options[:sort_order]
  table
end

#previous_page ⇒ Object 



18
19
20
 
# File 'lib/rails_db/table_pagination.rb', line 18

def previous_page
  current_page > 1 ? (current_page - 1) : nil
end

#total_entries ⇒ Object 



22
23
24
 
# File 'lib/rails_db/table_pagination.rb', line 22

def total_entries
  @total_entries ||= count
end

#total_pages ⇒ Object 



26
27
28
 
# File 'lib/rails_db/table_pagination.rb', line 26

def total_pages
  total_entries.zero? ? 1 : (total_entries / per_page.to_f).ceil
end