Using the yadcf plugin, is it possible to have the "select" filter_type with a custom function defined for custom_func to perform the filtering/matching?
Yes
For example
var table = $('#sample-table');
var dtable = table.DataTable();
yadcf.init(dtable, [{
column_number: 0,
select_type: "chosen",
text_data_delimiter: ";",
filter_type: 'custom_func',
custom_func: myCustomFilterFunction
}]);
function myCustomFilterFunction(filterVal, columnVal) {
const items = columnVal.split(';');
return items.some(function(arrVal) {
return filterVal === arrVal;
});
}
Read from the docs
* filter_type
Required: false
Type: String
Default value: 'select'
Possible values: select / multi_select / auto_complete / text / date / range_number / range_number_slider / range_date / custom_func / multi_select_custom_func / date_custom_func
Description: The type of the filter to be used in the column
* custom_func
Required: true (when filter_type is custom_func / multi_select_custom_func / date_custom_func)
Type: function
Default value: undefined
Description: should be pointing to a function with the following signature myCustomFilterFunction(filterVal, columnVal, rowValues, stateVal) , where `filterVal` is the value from the select box,
`columnVal` is the value from the relevant row column, `rowValues` is an array that holds the values of the entire row and `stateVal` which holds the current state of the table row DOM
, stateVal is perfect to handle situations in which you placing radiobuttons / checkbox inside table column. This function should return true if the row matches your condition and the row should be displayed) and false otherwise
Note: When using multi_select_custom_func as filter_type filterVal will hold an array of selected values from the multi select element
Related
Following example from this answer. If I created map without index, how to query the inner value of the map?
box.schema.create_space('x', {format = {[1] = {'id', 'unsigned'}, [2] = {'obj', 'map'}}})
box.space.x:create_index('pk', {parts = {[1] = {field = 1, type = 'unsigned'}}})
box.space.x:insert({2, {text = 'second', timestamp = 123}}
box.execute [[ SELECT * FROM "x" ]]
-- [2, {'timestamp': 123, 'text': 'second'}]
How to fetch timestamp or text column directly from SQL without creating index?
Tried these but didn't work:
SELECT "obj.text" FROM "x"
SELECT "obj"."text" FROM "x"
SELECT "obj"["text"] FROM "x"
SELECT "obj"->"text" FROM "x"
You can register a Lua function to call it from SQL. The first example from our SQL + Lua manual shows exactly what you asked.
A bit simplified version of the example to explain the idea:
box.schema.func.create('GETFIELD', {
language = 'LUA',
returns = 'any',
body = [[
function(msgpack_value, field)
return require('msgpack').decode(msgpack_value)[field]
end]],
is_sandboxed = false,
param_list = {'string', 'string'},
exports = {'SQL'},
is_deterministic = true
})
After registration of the function you can call it from SQL:
tarantool> \set language sql
tarantool> select getfield("obj", 'text') from "x"
---
- metadata:
- name: COLUMN_1
type: any
rows:
- ['second']
...
tarantool> select getfield("obj", 'timestamp') from "x"
---
- metadata:
- name: COLUMN_1
type: any
rows:
- [123]
...
Differences from the example in the manual:
No hack with the global variable, but no dot syntax ('foo.bar.baz').
Exported only to SQL.
The return type is 'any': so it can be used for, say, the numeric 'timestamp' field. Downside: 'any' is reported in the result set metainformation.
(The idea suggested by Nikita Pettik, my teammate.)
I can't find anything about how to do this type of query in FaunaDB. I need to select only specifics fields from a document, not all fields. I can select one field using Select function, like below:
serverClient.query(
q.Map(
q.Paginate(q.Documents(q.Collection('products')), {
size: 12,
}),
q.Lambda('X', q.Select(['data', 'title'], q.Get(q.Var('X'))))
)
)
Forget the selectAll function, it's deprecated.
You can also return an object literal like this:
serverClient.query(
q.Map(
q.Paginate(q.Documents(q.Collection('products')), {
size: 12,
}),
q.Lambda(
'X',
{
title: q.Select(['data', 'title'], q.Get(q.Var('X')),
otherField: q.Select(['data', 'other'], q.Get(q.Var('X'))
}
)
)
)
Also you are missing the end and beginning quotation marks in your question at ['data, title']
One way to achieve this would be to create an index that returns the values required. For example, if using the shell:
CreateIndex({
name: "<name of index>",
source: Collection("products"),
values: [
{ field: ["data", "title"] },
{ field: ["data", "<another field name>"] }
]
})
Then querying that index would return you the fields defined in the values of the index.
Map(
Paginate(
Match(Index("<name of index>"))
),
Lambda("product", Var("product"))
)
Although these examples are to be used in the shell, they can easily be used in code by adding a q. in front of each built-in function.
In my scenario I have set enhanced grid with a filter query (values, conditions, columns and logicany or logicall.
But it works fine with below code except "isempty" condition. On edit or update the filter applied, it does not retains the filter condition applied, instead it takes the first option from condition drop down list.
Here is the code:
grid.setFilter([{
type: 'string',
column: 1,
condition: 'startsWith',
value: 'XXX'
}, {
type: 'number',
column: 2,
condition: 'lessthan',
value: 100
}], 'logicany');
}
I am trying to use yadcf plugin for multiselect plugin in my datatable since it is flexible to use.It generates dropdown multiselect filter with values available in perticular row. I want to customize this in such a way to pass my own list and values corresponding to same like (list)but not getting how can i do this. If anyone could guide me in this, I will be grateful for you.
{
column_number: 1,
filter_type: "multi_select",
select_type: 'select2',
filter_reset_button_text: false
}]);
You should use the data property
For example
{
column_number: 1,
filter_type: "multi_select",
select_type: 'select2',
filter_reset_button_text: false,
data: ["value1","value2"]
}
Here is small fragment from the docs (you better read more in order to know about yadcf feature)
* data
Required: false
Type: Array (of string or objects)
Description: When the need of predefined data for filter is needed just use an array of strings ["value1","value2"....] (supported in select / multi_select / auto_complete filters) or
array of objects [{value: 'Some Data 1', label: 'One'}, {value: 'Some Data 3', label: 'Three'}] (supported in select / multi_select filters)
Note: that when filter_type is custom_func / multi_select_custom_func this array will populate the custom filter select element
*
I'm using jquery data tables and I'm assigning an array of values to the initialization of the data table. The table basically looks like this.
based on an an radio button I would like to limit the items that are display in the table and the items that are searched in the table.
For my example it would be based on the "Chart column". I want to limit the table to only show the items that are based on chart "D" or Chart "S". Here is how I'm initializing the table.
if (!$.fn.DataTable.isDataTable( '#fundLookUptbl' ) ) {
fundTable = $('#fundLookUptbl').DataTable( {
data: funds,
columns: [
{ "mData": "chart" },
{ "mData": "fund" },
{ "mData": "orgDefault" },
{ "mData": "progDefault" }
]
} );
var filteredData = fundTable
.columns( [0, 1] )
.data()
.eq( 0 )
.filter( function ( value, index ) {
return value = 'D' ? true : false;
} );
}
This is obviously not working, and the filterData variable is a lousy attempt on trying to make it work. I'm having a hard time understanding the API's. So the question is , How can initialize the table to only show the items that are based on a given chart. I know that I can remove the items of the array but i don't want to do that since I would simple like to be able to switch between chart "D" and "S" but still continue to search through the other columns.
I believe that filtering the column would solve your problem.
table.column(0).search('Bruno').draw()
So you could just filter the column when the radio button selection change
Here is a fiddle example
I´m not sure to be understanding what you want to do but here are some options:
One way is selecting by default value example "s". You can use a dropdown is easier to handled .Then select with jQuery the dafault value "s" on that dropdown and add a function
$("#DropdownId").change(function () {
var chart=$("#DropdownId").val();
});
$.ajax({
url: "url")",//url to reload page with new value
type: "POST",
data: {chart:chart},
success: function (data) {
}
});
});
on this way the filter is on backend. If you want to do something on the row depending of a column value you shoud to add something like this
"fnRowCallback": function (nRow, mData, iDisplayIndex, iDisplayIndexFull) {
if (mData["chart"] =="s") {
return nRow;
}
},
Datatables: custom function inside of fnRowCallback.
Good luck
fundTable.order( [0, 'asc'] );
Try that or look at this particular page for reference:
https://datatables.net/reference/api/order%28%29
Basically orders in pair of columnIndex in either asc(ending) or desc(ending) order.