@easyquery/core/dist/lib/dm/expression.js

EasyQuery.JS core modules

import { DataKind } from '../types/data_kind';
import { DataType } from '../types/data_type';
import { ExprTag } from '../types/expr_tag';
import { Query } from '../query/query';
var Expression = /** @class */ (function () {
    function Expression() {
        this.id = null;
        this.tag = ExprTag.Constant;
        this.kind = DataKind.Scalar;
        this.dataType = DataType.String;
        //DO NOT forget remove any
        this.value = '';
        this.text = '';
        this.distinct = false;
        this.args = new Array();
    }
    Expression.prototype.loadFromData = function (model, data) {
        if (data) {
            this.id = data.id;
            this.tag = data.tag;
            //Do not save other info for EntityAttr
            if (this.tag == ExprTag.EntityAttribute
                || this.tag == ExprTag.ParentEntityAttribute) {
                return;
            }
            this.kind = data.kind;
            this.dataType = data.dtype;
            if (data.query) {
                this.query = new Query(model);
                this.query.setData(data.query);
            }
            if (data.val) {
                this.value = data.val;
                this.text = data.txt;
            }
            if (typeof data.distinct !== 'undefined') {
                this.distinct = data.distinct;
            }
            if (data.func) {
                this.func = data.func;
                if (data.args) {
                    for (var i = 0; i < data.args.length; i++) {
                        var arg = new Expression();
                        arg.loadFromData(model, data.args[i]);
                        this.args.push(arg);
                    }
                }
            }
            if (data.sql) {
                this.sql = data.sql;
                this.baseAttrId = data.baseAttrId;
            }
        }
    };
    Expression.prototype.saveToData = function () {
        var obj = {
            id: this.id,
            tag: this.tag
        };
        //Do not save other info for EntityAttr
        if (this.tag == ExprTag.EntityAttribute) {
            return obj;
        }
        if (this.query) {
            obj.query = this.query.toJSONData();
        }
        if (typeof this.kind !== "undefined") {
            obj.kind = this.kind;
        }
        if (typeof this.dataType !== "undefined") {
            obj.dtype = this.dataType;
        }
        if (this.value) {
            obj.val = this.value;
        }
        if (this.text) {
            obj.txt = this.text;
        }
        if (this.distinct) {
            obj.distinct = this.distinct;
        }
        if (this.func) {
            obj.func = this.func;
            obj.args = [];
            for (var i = 0; i < this.args.length; i++) {
                obj.args.push(this.args[i].saveToData());
            }
        }
        if (this.sql) {
            obj.sql = this.sql;
            obj.baseAttrId = this.baseAttrId;
        }
        return obj;
    };
    return Expression;
}());
export { Expression };
//# sourceMappingURL=expression.js.map