mirror of
https://github.com/EGroupware/egroupware.git
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454 lines
13 KiB
TypeScript
454 lines
13 KiB
TypeScript
/**
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* EGroupware eTemplate2 - JS content array manager
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Andreas Stöckel
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*/
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/*egw:uses
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et2_core_common;
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egw_inheritance;
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et2_core_phpExpressionCompiler;
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*/
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import {et2_widget} from "./et2_core_widget";
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/**
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* Manage access to various template customisation arrays passed to etemplate->exec().
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*
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* This manages access to content, modifications and readonlys arrays
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*/
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export class et2_arrayMgr
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{
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splitIds: boolean = true;
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public data: object;
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// Holds information about the current perspective
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public perspectiveData: { owner: et2_widget; row: number; key: string } = {
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"owner": null,
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"key": null,
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"row": null
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};
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protected static compiledExpressions: object = {};
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private readonly _parentMgr: et2_arrayMgr;
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private readOnly: boolean = false;
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/**
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* Constructor
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*
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* @memberOf et2_arrayMgr
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* @param _data
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* @param _parentMgr
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*/
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constructor(_data: object = {}, _parentMgr?: et2_arrayMgr) {
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if (typeof _parentMgr == "undefined") {
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_parentMgr = null;
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}
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// Copy the parent manager which is needed to access relative data when
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// being in a relative perspective of the manager
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this._parentMgr = _parentMgr;
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// Hold a reference to the data
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if (typeof _data == "undefined" || !_data) {
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egw.debug("log", "No data passed to content array manager. Probably a mismatch between template namespaces and data.");
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_data = {};
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}
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// Expand sub-arrays that have been shmushed together, so further perspectives work
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// Shmushed keys look like: ${row}[info_cat]
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// Expanded: ${row}: Object{info_cat: ..value}
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if (this.splitIds) {
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// For each index, we need a key: {..} sub array
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for (let key in _data) {
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// Split up indexes
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const indexes = key.replace(/[/g, "[").split('[');
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// Put data in the proper place
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if (indexes.length > 1) {
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const value = _data[key];
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let target = _data;
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for (let i = 0; i < indexes.length; i++) {
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indexes[i] = indexes[i].replace(/]/g, '').replace(']', '');
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if (typeof target[indexes[i]] == "undefined" || target[indexes[i]] === null) {
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target[indexes[i]] = i == indexes.length - 1 ? value : {};
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}
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target = target[indexes[i]];
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}
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delete _data[key];
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}
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}
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}
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this.data = _data;
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}
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/**
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* Returns the root content array manager object
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*/
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getRoot(): et2_arrayMgr {
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if (this._parentMgr != null) {
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return this._parentMgr.getRoot();
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}
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return this;
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}
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getParentMgr(): et2_arrayMgr {
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return this._parentMgr;
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}
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getPerspectiveData(): { owner: et2_widget; row: number; key: string } {
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return this.perspectiveData;
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}
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setPerspectiveData(new_perspective: { owner: et2_widget; row: number; key: string }) {
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this.perspectiveData = new_perspective;
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}
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setRow(new_row: number) {
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this.perspectiveData.row = new_row;
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}
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/**
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* Explodes compound keys (eg IDs) into a list of namespaces
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* This uses no internal values, just expands
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*
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* eg:
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* a[b][c] => [a,b,c]
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* col_filter[tr_tracker] => [col_filter, tr_tracker]
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*
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* @param {string} _key
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*
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* @return {string[]}
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*/
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explodeKey(_key: string): string[] {
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// Parse the given key by removing the "]"-chars and splitting at "["
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let indexes = [_key];
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if (typeof _key === "string") {
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_key = _key.replace(/[/g, "[").replace(/]/g, "]");
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indexes = _key.split('[');
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}
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if (indexes.length > 1) {
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indexes = [indexes.shift(), indexes.join('[')];
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indexes[1] = indexes[1].substring(0, indexes[1].length - 1);
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const children = indexes[1].split('][');
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if (children.length) {
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indexes = jQuery.merge([indexes[0]], children);
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}
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}
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return indexes;
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}
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/**
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* Returns the path to this content array manager perspective as an array
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* containing the key values
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*
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* @param _path is used internally, do not supply it manually.
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*/
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getPath(_path?: string[]): string[] {
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if (typeof _path == "undefined") {
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_path = [];
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}
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if (this.perspectiveData.key != null) {
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// prepend components of this.perspectiveData.key to path, can be more then one eg. "nm[rows]"
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_path = this.perspectiveData.key.replace(/]/g, '').split('[').concat(_path);
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}
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if (this._parentMgr != null) {
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_path = this._parentMgr.getPath(_path);
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}
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return _path;
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}
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/**
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* Get array entry is the equivalent to the boetemplate get_array function.
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* It returns a reference to the (sub) array with the given key. This also works
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* for keys using the ETemplate referencing scheme like a[b][c]
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*
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* @param _key is the string index, may contain sub-indices like a[b]
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* @param _referenceInto if true none-existing sub-arrays/-indices get created
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* to be returned as reference, else false is returned. Defaults to false
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* @param _skipEmpty returns null if _key is not present in this content array.
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* Defaults to false.
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*/
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getEntry(_key: string, _referenceInto?: boolean, _skipEmpty?: boolean): string | object {
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if (typeof _referenceInto == "undefined") {
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_referenceInto = false;
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}
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if (typeof _skipEmpty == "undefined") {
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_skipEmpty = false;
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}
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// Parse the given key by removing the "]"-chars and splitting at "["
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const indexes = this.explodeKey(_key);
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let entry = this.data;
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for (let i = 0; i < indexes.length; i++) {
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// Abort if the current entry is not an object (associative array) and
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// we should descend further into it.
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const isObject = typeof entry === 'object';
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if (!isObject && !_referenceInto || entry == null || jQuery.isEmptyObject(entry)) {
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return null;
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}
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// Check whether the entry actually exists
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const idx = indexes[i];
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if (_skipEmpty && (!isObject || typeof entry[idx] == "undefined")) {
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return null;
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}
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entry = entry[idx];
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}
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return entry;
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}
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/**
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* Equivalent to the boetemplate::expand_name function.
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*
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* Expands variables inside the given identifier to their values inside the
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* content array.
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*
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* @param {string} _ident Key used to reference into managed array
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* @return {*}
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*/
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expandName(_ident: string): string | object {
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// Check whether the identifier refers to an index in the content array
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const is_index_in_content = _ident.charAt(0) == '@';
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// Check whether "$" occurs in the given identifier
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const pos_var = _ident.indexOf('$');
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if (pos_var >= 0 && (this.perspectiveData.row != null || !_ident.match(/\$\{?row\}?/))) {
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// Get the content array for the current row
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const row = this.perspectiveData.row || '';
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const row_cont = this.data[row] || {};
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// $cont is NOT root but current name-space in old eTemplate
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const cont = this.data;//getRoot().data;
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const _cont = this.data;// according to a grep only used in ImportExport just twice
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// Check whether the expression has already been compiled - if not,
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// try to compile it first. If an error occurs, the identifier
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// function is set to null
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if (typeof et2_arrayMgr.compiledExpressions[_ident] == "undefined") {
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try {
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if (this.perspectiveData.row == null) {
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// No row, compile for only top level content
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// @ts-ignore
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et2_arrayMgr.compiledExpressions[_ident] = et2_compilePHPExpression(
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_ident, ["cont", "_cont"]);
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} else {
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// @ts-ignore
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et2_arrayMgr.compiledExpressions[_ident] = et2_compilePHPExpression(
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_ident, ["row", "cont", "row_cont", "_cont"]);
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}
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} catch (e) {
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et2_arrayMgr.compiledExpressions[_ident] = null;
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egw.debug("error", "Error while compiling PHP->JS ", e);
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}
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}
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// Execute the previously compiled expression, if it is not "null"
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// because compilation failed. The parameters have to be in the same
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// order as defined during compilation.
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if (et2_arrayMgr.compiledExpressions[_ident]) {
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try {
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if (this.perspectiveData.row == null) {
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// No row, exec with only top level content
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_ident = et2_arrayMgr.compiledExpressions[_ident](cont, _cont);
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} else {
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_ident = et2_arrayMgr.compiledExpressions[_ident](row, cont, row_cont, _cont);
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}
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} catch (e) {
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// only log error, as they are no real errors but missing data
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egw.debug("log", typeof e == 'object' ? e.message : e);
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_ident = null;
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}
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}
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}
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if (is_index_in_content && _ident) {
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// If an additional "@" is specified, this means that we have to return
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// the entry from the root element
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if (_ident.charAt(1) == '@') {
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return this.getRoot().getEntry(_ident.substr(2));
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} else {
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return this.getEntry(_ident.substr(1));
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}
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}
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return _ident;
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}
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parseBoolExpression(_expression: string) {
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// If the first char of the expression is a '!' this means, that the value
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// is to be negated.
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if (_expression.charAt(0) == '!') {
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return !this.parseBoolExpression(_expression.substr(1));
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}
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// Split the expression at a possible "="
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const parts = _expression.split('=');
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// Expand the first value
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const val = '' + this.expandName(parts[0]);
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// If a second expression existed, test that one
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if (typeof parts[1] != "undefined") {
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// Expand the second value
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const checkVal = '' + this.expandName(parts[1]);
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// Values starting with / are treated as regular expression. It is
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// checked whether the first value matches the regular expression
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if (checkVal.charAt(0) == '/') {
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return (new RegExp(checkVal.substr(1, checkVal.length - 2)))
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.test(val);
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}
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// Otherwise check for simple equality
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return val == checkVal;
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}
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return et2_evalBool(val);
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}
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/**
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* ?
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*
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* @param {object} _owner owner object
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* @param {(string|null|object)} _root string with key, null for whole data or object with data
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* @param {number?} _row key for into the _root for the desired row
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*/
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openPerspective(_owner: et2_widget, _root: (string | null | object), _row: number | null): et2_arrayMgr {
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// Get the root node
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let root = typeof _root == "string" ? this.data[_root] :
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(_root == null ? this.data : _root);
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if (typeof root == "undefined" && typeof _root == "string") root = this.getEntry(_root);
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// Create a new content array manager with the given root
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const constructor = this.readOnly ? et2_readonlysArrayMgr : et2_arrayMgr;
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const mgr = new constructor(root, this);
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// Set the owner
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mgr.perspectiveData.owner = _owner;
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// Set the root key
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if (typeof _root == "string") {
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mgr.perspectiveData.key = _root;
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}
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// Set _row parameter
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if (typeof _row != "undefined") {
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mgr.perspectiveData.row = _row;
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}
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return mgr;
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}
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}
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/**
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* @augments et2_arrayMgr
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*/
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export class et2_readonlysArrayMgr extends et2_arrayMgr {
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/**
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* Find out if the given ID is readonly, according to the array data
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*
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* @memberOf et2_readonlysArrayMgr
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* @param _id
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* @param _attr
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* @param _parent
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* @returns
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*/
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isReadOnly(_id: string, _attr: string, _parent?: et2_arrayMgr): boolean | string {
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let entry = null;
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if (_id != null) {
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if (_id.indexOf('$') >= 0 || _id.indexOf('@') >= 0) {
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_id = this.expandName(_id);
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}
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// readonlys was not namespaced in old eTemplate, therefore if we dont find data
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// under current namespace, we look into parent
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// (if there is anything namespaced, we will NOT look for parent!)
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let mgr: et2_arrayMgr = this;
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while (mgr.getParentMgr() && jQuery.isEmptyObject(mgr.data)) {
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mgr = mgr.getParentMgr();
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}
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entry = mgr.getEntry(_id);
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}
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// Let the array entry override the read only attribute entry
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if (typeof entry != "undefined" && !(typeof entry === 'object')) {
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return entry;
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}
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// If the attribute is set, return that
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if (typeof _attr != "undefined" && _attr !== null) {
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// Accept 'editable', but otherwise boolean
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return this.expandName(_attr) === 'editable' ? 'editable' : et2_evalBool(_attr);
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}
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// Otherwise take into accounf whether the parent is readonly
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if (typeof _parent != "undefined" && _parent) {
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return true;
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}
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// Otherwise return the default value
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entry = this.getEntry("__ALL__");
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return entry !== null && (typeof entry != "undefined");
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}
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/**
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* Override parent to handle cont and row_cont.
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*
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* Normally these should refer to the readonlys data, but that's not
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* useful, so we use the owner inside perspective data to expand using content.
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*
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* @param {string} ident Key for searching into the array.
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* @returns {*}
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*/
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expandName(ident: string): any {
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return this.perspectiveData.owner.getArrayMgr('content').expandName(ident);
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}
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}
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/**
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* Creates a new set of array managers
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*
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* @param _owner is the owner object of the array managers - this object (a widget)
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* will free the array manager
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* @param _mgrs is the original set of array managers, the array managers are
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* inside an associative array as recived from et2_widget::getArrayMgrs()
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* @param _data is an associative array of new data which will be merged into the
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* existing array managers.
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* @param _row is the row for which the array managers will be opened.
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*/
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function et2_arrayMgrs_expand(_owner: et2_widget, _mgrs: object, _data: object, _row: number) {
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// Create a copy of the given _mgrs associative array
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let result = {};
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// Merge the given data associative array into the existing array managers
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for (let key in _mgrs) {
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result[key] = _mgrs[key];
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if (typeof _data[key] != "undefined") {
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// Open a perspective for the given data row
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let rowData = {};
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rowData[_row] = _data[key];
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result[key] = _mgrs[key].openPerspective(_owner, rowData, _row);
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}
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}
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// Return the resulting managers object
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return result;
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}
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