Purpose of this property type
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This page is written for NG web component creators, not for Servoy developers that just want to use web components. |
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| language | js |
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| title | .spec file |
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"serverscript": "mycomppck/mycompname/mycomp_server.js",
(...)
"model":
{
"columns": { "type": "columnDef[]", "droppable": true },
"childFoundsets": { "type": "foundset[]", "default": [] }
(...)
"types":
{
"columnDef": {
"dataprovider": { "type": "dataprovider", "forFoundset": "myFoundset" }
(...)
}
},
"internalApi" : {
"getGroupedChildFoundsetId" : {
"returns" : "foundsetRef",
"parameters" :
[ { "name" : "parentRecord", "type" : "record" },
{ "name": "parentLevelGroupColumnIndex", "type": "int" },
{ "name": "newLevelGroupColumnIndex", "type": "int" } ]
},
(...) |
$foundsetTypeUtils helper methods
Starting with 8.3.2 $foundsetTypeUtils service was added. It's purpose is to help make the foundset property type easier to use.
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| language | js |
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| title | $foundsetTypeUtils |
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/**
* The purpose of this method is to aggregate after-the-fact granular updates with indexes
* that are relevant only when applying updates 1-by-1 into indexes that are
* related to the new/final state of the viewport. It only calculates new indexes
* for updates of type $foundsetTypeConstants.ROWS_CHANGED. (taking into account
* any insert/delete along the way)
*
* @param viewportRowUpdates what a foundset/component property type (viewport) change listener
* would receive in changeEvent[$foundsetTypeConstants.NOTIFY_VIEW_PORT_ROW_UPDATES_RECEIVED]
* [$foundsetTypeConstants.NOTIFY_VIEW_PORT_ROW_UPDATES]
*
* @param oldViewportSize what a foundset/component property type (viewport) change listener
* would receive in changeEvent[$foundsetTypeConstants.NOTIFY_VIEW_PORT_ROW_UPDATES_RECEIVED]
* [$foundsetTypeConstants.NOTIFY_VIEW_PORT_ROW_UPDATES_OLD_VIEWPORTSIZE]
*
* @returns an array of $foundsetTypeConstants.ROWS_CHANGED updates with their indexes corrected
* to reflect the indexes in the final state of the viewport (after all updates were applied).
*/
coalesceGranularRowChanges: function(viewportRowUpdates, oldViewportSize);
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