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Datasource,
DatasourceFactory,
FormatterParserProvider,
IDictionary,
Mask,
MethodNotAssignedError,
} from '@zeedhi/core';
import debounce from 'lodash.debounce';
import { NonInitializedError } from '../../error/non-initialized';
import { Component } from '../zd-component/component';
import { ColumnAlign, ColumnType, IColumn } from './interfaces';
/**
* Base class for Column.
*/
export class Column extends Component implements IColumn {
public align: ColumnAlign = 'left';
public label = '';
public width?: string;
public maxWidth?: string;
public minWidth?: string;
public mask = '';
public type?: ColumnType;
public actionFixed = false;
/* column is fixed */
public fixed = false;
public sortable = true;
public loading = false;
public componentProps: any = {};
/** column style property */
public style: IDictionary = {};
/** Type of XLS */
public xlsType = '';
/* Stores Datasource created on ComponentProps */
protected lookupDatasource?: Datasource;
/* Stores lookup data to prevent unnecessary requests */
public lookupData: any = {};
/* Stores lookup data count (only to be reactive and force column update) */
public lookupDataCount = 0;
/* Stores data to lookup (it is not initialized to not be reactive) */
protected dataToLookup?: any[];
/**
* Column overflow behaviour when column has max width
* 'ellipsis' - show ellipsis (...) at end
* 'hidden' - just crop value
* 'wrap' - show value using multiple lines
* <2..5> - show value using multiple lines with <number> max lines (line-clamp)
*/
public overflow: string | number = 'ellipsis';
/* Conditional properties */
public conditions: IDictionary = {};
/**
* Method to get the current column width, assigned by view layer.
*/
private viewGetWidth?: () => number;
public helperText = '';
protected defaultData: IDictionary[] = [];
private lookup: (lookupColumn: string) => void = () => {
throw new NonInitializedError(this.constructor.name);
};
/**
* Defines if the column should store the componentProps datasource.data in memory
*/
public storeData = true;
/**
* Creates a new Column.
* @param props Column properties
*/
constructor(props: IColumn) {
super(props);
this.align = this.getInitValue('align', props.align, this.align);
this.label = this.getInitValue('label', props.label, this.label);
this.width = this.getInitValue('width', props.width, this.width);
this.maxWidth = this.getInitValue('maxWidth', props.maxWidth, this.maxWidth);
this.minWidth = this.getInitValue('minWidth', props.minWidth, this.minWidth);
this.mask = this.getInitValue('mask', props.mask, this.mask);
this.overflow = this.getInitValue('overflow', props.overflow, this.overflow);
this.type = this.getInitValue('type', props.type, this.type);
this.actionFixed = this.getInitValue('actionFixed', props.actionFixed, this.actionFixed);
this.fixed = this.getInitValue('fixed', props.fixed, this.fixed);
this.sortable = this.getInitValue('sortable', props.sortable, this.sortable);
this.loading = this.getInitValue('loading', props.loading, this.loading);
this.style = this.getInitValue('style', props.style, this.style);
this.componentProps = this.getInitValue('componentProps', props.componentProps, this.componentProps);
this.xlsType = this.getInitValue('xlsType', props.xlsType, this.xlsType);
this.conditions = this.getInitValue('conditions', props.conditions, this.conditions);
this.helperText = this.getInitValue('helperText', props.helperText, this.helperText);
this.storeData = this.getInitValue('storeData', props.storeData, this.storeData);
if (this.componentProps.datasource) {
this.lookupDatasource = DatasourceFactory.factory({
...this.componentProps.datasource,
lazyLoad: true,
loadAll: true,
});
this.lookupDatasource?.initialize();
this.defaultData = this.lookupDatasource?.data || this.defaultData;
}
this.createAccessors();
}
/**
* Sets view getWidth method.
*/
public setViewGetWidth(viewGetWidth: () => number) {
this.viewGetWidth = viewGetWidth;
}
/**
* * Sets a filter to lookupData.
*/
public setLookupDataFilter(filter: IDictionary) {
this.lookupDatasource?.setFilter(filter);
}
/**
* Gets the column width.
*/
public getWidth() {
if (this.viewGetWidth) {
return this.viewGetWidth();
}
throw new MethodNotAssignedError('viewGetWidth');
}
public formatterByRow(row: IDictionary<any>, cellProps?: IDictionary) {
const value = row[this.name];
const formatterFn = FormatterParserProvider.getFormatter(`column_${this.componentProps.component}`);
if (formatterFn) {
return formatterFn({
column: this,
value,
row,
componentProps: { ...this.componentProps, ...cellProps },
});
}
return this.formatter(value, cellProps);
}
public formatter(value: any, cellProps?: IDictionary) {
const formatterFn = FormatterParserProvider.getFormatter(this.componentProps.component);
if (formatterFn) {
return formatterFn(value, { ...this.componentProps, ...cellProps });
}
return value ? Mask.getValueWithMask(value, this.mask) : value;
}
public getLookupData(lookupColumn: string, value: any) {
const emptyRow = {};
if (this.lookupData[value]) {
return this.lookupData[value];
}
this.lookupData[value] = emptyRow;
const dataIndex = this.lookupDatasource?.data.findIndex((row) => row[lookupColumn] === value) || 0;
if (dataIndex !== -1) {
this.lookupData[value] = this.lookupDatasource?.data[dataIndex];
return this.lookupData[value];
}
const hasLookupColumn = this.lookupDatasource?.data.every((row) => Reflect.has(row, lookupColumn));
if (hasLookupColumn) {
this.dataToLookup = this.dataToLookup || [];
this.dataToLookup.push(value);
this.lookup(lookupColumn);
} else {
console.warn(`Row datasource do not have a key: ${lookupColumn}`);
}
return emptyRow;
}
/**
* Initialize the lookup property, properly setting the debounced function
*/
public initialize() {
this.lookup = debounce(this.lookupFn, 100);
}
protected async lookupFn(lookupColumn: string, dataToLookup?: any[]) {
let data: IDictionary[] = [];
this.loading = true;
if (this.storeData) {
data = await this.lookupDatasource!.get();
} else {
const filteredData = Array.from(new Set(dataToLookup || this.dataToLookup)); // remove duplicates
if (!dataToLookup) {
this.dataToLookup = [];
}
data = await this.lookupDatasource!.addFilter(lookupColumn, filteredData);
}
const lookupData: IDictionary = {};
data.forEach((row) => {
lookupData[row[lookupColumn]] = row;
});
this.lookupData = { ...this.lookupData, ...lookupData };
this.lookupDataCount += 1;
this.loading = false;
}
/**
* Clear lookupData to force new requests
*/
public clearLookupData() {
this.lookupData = {};
if (this.componentProps.datasource) this.componentProps.datasource.data = this.defaultData;
}
public onBeforeDestroy() {
super.onBeforeDestroy();
this.lookupDatasource?.destroy();
}
}
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