Class: PagedPaginator
- Inherits:
-
JSONAPI::Paginator
- Object
- JSONAPI::Paginator
- PagedPaginator
- Defined in:
- lib/jsonapi/paginator.rb
Instance Attribute Summary collapse
-
#number ⇒ Object
readonly
Returns the value of attribute number.
-
#size ⇒ Object
readonly
Returns the value of attribute size.
Class Method Summary collapse
Instance Method Summary collapse
- #apply(relation, _order_options) ⇒ Object
- #calculate_page_count(record_count) ⇒ Object
-
#initialize(params) ⇒ PagedPaginator
constructor
A new instance of PagedPaginator.
- #links_page_params(options = {}) ⇒ Object
Methods inherited from JSONAPI::Paginator
Constructor Details
#initialize(params) ⇒ PagedPaginator
Returns a new instance of PagedPaginator.
125 126 127 128 |
# File 'lib/jsonapi/paginator.rb', line 125 def initialize(params) parse_pagination_params(params) verify_pagination_params end |
Instance Attribute Details
#number ⇒ Object (readonly)
Returns the value of attribute number.
123 124 125 |
# File 'lib/jsonapi/paginator.rb', line 123 def number @number end |
#size ⇒ Object (readonly)
Returns the value of attribute size.
123 124 125 |
# File 'lib/jsonapi/paginator.rb', line 123 def size @size end |
Class Method Details
.requires_record_count ⇒ Object
130 131 132 |
# File 'lib/jsonapi/paginator.rb', line 130 def self.requires_record_count true end |
Instance Method Details
#apply(relation, _order_options) ⇒ Object
138 139 140 141 |
# File 'lib/jsonapi/paginator.rb', line 138 def apply(relation, ) offset = (@number - 1) * @size relation.offset(offset).limit(@size) end |
#calculate_page_count(record_count) ⇒ Object
134 135 136 |
# File 'lib/jsonapi/paginator.rb', line 134 def calculate_page_count(record_count) (record_count / @size.to_f).ceil end |
#links_page_params(options = {}) ⇒ Object
143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 |
# File 'lib/jsonapi/paginator.rb', line 143 def links_page_params( = {}) record_count = [:record_count] page_count = calculate_page_count(record_count) links_page_params = {} links_page_params['first'] = { 'number' => 1, 'size' => @size } if @number > 1 links_page_params['prev'] = { 'number' => @number - 1, 'size' => @size } end unless @number >= page_count links_page_params['next'] = { 'number' => @number + 1, 'size' => @size } end if record_count links_page_params['last'] = { 'number' => page_count == 0 ? 1 : page_count, 'size' => @size } end links_page_params end |