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    RowsPerPage option disappears if using pagination.sync in QTable

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    • C
      carlos_proj last edited by carlos_proj

      @metalsadman I tried your solution. I did :rows-per-page-options="rowsOptions". In data, I now have

      data () {
          return {
            rowsOptions: [3, 5, 7, 10, 15, 25, 50, 0],
            pagination: {
              rowsPerPage: 7,
              page: 1
            }
      }
      

      I implemented the watch but instead of giving it a blank array, because I don’t want it to be empty, I go ahead and re-establish this.rowsOptions to what I want it to be.

      watch: {
          'pagination' () {
            console.log(this.pagination.rowsPerPage)
            if (this.pagination.rowsPerPage === 0 || (this.pagination.rowsPerPage >= 15 && this.pagination.rowsPerPage < 50)) {
              this.rowsOptions = [3, 5, 7, 10, 15, 25, 50, 0]
            }
          }
        }
      

      However, the Rows per page still disappears on the UI if the user selects a Rows per page greater than the amount of items.

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      • C
        carlos_proj last edited by

        I also notice that on https://v0-15.quasar-framework.org/components/datatable.html#Controlling-pagination-custom-controls-amp-watching-for-page-navigation the example is basically what I have. They setup :pagination.sync="paginationControl" and paginationControl: { rowsPerPage: 3, page: 1 }. The rest of the example is just fancy stuff but the fact that the Rows per page doesn’t disappear on the UI is what I am lacking.

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        • metalsadman
          metalsadman last edited by metalsadman

          you need to put an else to set it back to default. example:

          data () { 
            ...
            defaultOpts: [3, 5, 7, 10, 15, 25, 50, 0],
            rowsOptions: [3, 5, 7, 10, 15, 25, 50, 0]
           ...
           },
          watch: {
              'pagination' () {
                console.log(this.pagination.rowsPerPage)
                if (this.pagination.rowsPerPage === 0 || (this.pagination.rowsPerPage >= 15 && this.pagination.rowsPerPage < 50)) {
                   this.rowsOptions = []
                } else {       
                   this.rowsOptions = this.defaultOpts
                }
              }
            }
          
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          • C
            carlos_proj last edited by

            @metalsadman The table control is still disappearing 😞

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            • C
              carlos_proj last edited by

              @metalsadman I got it. It was a dumb mistake. I have a condition :hide-bottom="items.length < pagination.rowsPerPage" Where the intention was to hide the table controls but this is obviously bad code. Thanks for your help!

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              • C
                carlos_proj last edited by

                However, while I have you here @metalsadman… This component is being spawned multiple. Imagine 5 different tables that all use this same component. If a user selects a different Rows per page on one of the tables, how can I reflect that across all tables?

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                • metalsadman
                  metalsadman last edited by metalsadman

                  you’ll need vuex for that to store the state of your pagination object and share it across your component.
                  https://quasar-framework.org/guide/app-vuex-store.html
                  https://vuex.vuejs.org/

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                  • C
                    carlos_proj last edited by

                    @metalsadman I am a noob with vuex. I created a store with the property pagination in the structure we require. From my component, I am calling mapState from my file/variable. It sets my pagination how I want but I am not able to change it. I understand that I am supposed to use a mapMutation to change the store value but what is the event that handles the changing of the Rows per page selection?

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                    • metalsadman
                      metalsadman last edited by

                      no event in q-table that exposes that, just do same like the example i gave you, use watch hook on your vuex key.

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                      • C
                        carlos_proj last edited by

                        @metalsadman I’m sorry but I can’t get it.

                        In my store, store.js I have

                        export default {
                          state: {
                            pagination: {
                              rowsPerPage: 7,
                              page: 1
                            }
                          }
                        

                        And from my table I have

                        import { mapState } from 'vuex'
                        export default {
                          computed: {
                            ...mapState('store', [
                              'pagination'
                            ])
                        }
                        

                        I’m not sure how to implement the watch functionality like in your example if we are no longer using a v-model.

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                        • metalsadman
                          metalsadman last edited by metalsadman

                          :pagination.sync="pagination" :rows-per-page-options="rowsOptions", also add the rowOptions in your state and add actions or mutations so you can change its values, then same as the example:

                              'pagination' () {
                                console.log(this.pagination.rowsPerPage)
                                if (this.pagination.rowsPerPage === 0 || (this.pagination.rowsPerPage >= 15 && this.pagination.rowsPerPage < 50)) {
                                   this.setRowOptionAction([])
                                } else {       
                                   this.setRowOptionAction(this.defaultOpts)
                                }
                              }
                            }
                          
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                          • Hawkeye64
                            Hawkeye64 last edited by

                            Because pagination is an object, and depending on how you set it’s properies, you may have to write your watch a different way.
                            if you use this.$set(this.pagination, 'rowsPerPage', value) then you’re good. Otherwise, you need to write your watch like this:
                            https://vuejs.org/v2/api/#watch

                            pagination: {
                                handler: function (value) {
                                    console.log(this.pagination.rowsPerPage)
                                    if (this.pagination.rowsPerPage === 0 || (this.pagination.rowsPerPage >= 15 && this.pagination.rowsPerPage < 50)) {
                                       this.setRowOptionAction([])
                                    } else {       
                                       this.setRowOptionAction(this.defaultOpts)
                                    }
                                },
                                deep: true
                            }
                            
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