newswriter/api/admin/top/savetopersons/matchExec.js

NewsWriter is a generic tool for maintaining news and announcements on a website news page. Details are held in an SQLite database, from which the tool generates the index page (typically the top page of the target site), individual pages for events and a

(function () {
    var cogClass = function () {};
    cogClass.prototype.exec = function (params, request, response) {
        var oops = this.sys.apiError;
        var sys = this.sys;
        var fields = ['name','contact','affiliation','position'];
        var data = params.data;
        var personID = params.personid;
        var touchDate = params.touchdate;

        sys.db.run('BEGIN TRANSACTION',function(err){
            if (err) {return oops(response,err,'event/savetopersons(1)')};
            checkForFieldStr(0,4);
        });

        function checkForFieldStr (pos,limit) {
           if (pos === limit) {
                if (personID) {
                    updatePerson();
                } else {
                    addPerson();
                }
                return;
            }
            var fieldName = fields[pos];
            var str = data[fieldName];
            var sql = 'SELECT * FROM ' + fieldName +'s WHERE ' +fieldName + '=?;';
            sys.db.get(sql,[str],function(err,row){
                if (err) {return oops(response,err,'event/savetopersons(2)')};
                if (row && row[fieldName + 'ID']) {
                    var fieldID = row[fieldName + 'ID'];
                    data[fieldName + 'ID'] = fieldID;
                    checkForFieldStr(pos+1,limit);
                } else {
                    addFieldStr(fieldName, str, pos, limit);
                }
            });
        };

        function addFieldStr (fieldName, str, pos, limit) {
            var sql = 'INSERT INTO ' + fieldName + 's VALUES(NULL,?);';
            sys.db.run(sql,[str],function (err) {
                if (err) {return oops(response,err,'event/savetopersons(4)')};
                data[fieldName + 'ID'] = this.lastID;
                checkForFieldStr(pos+1,limit);
            });
            
        };

        function updatePerson () {
            var sql = 'INSERT OR REPLACE INTO persons VALUES (?,?,?,?,?,?);';
            sys.db.run(sql,[personID,data.nameID,data.contactID,data.affiliationID,data.positionID,touchDate],function(err){
                if (err) {return oops(response,err,'event/savetopersons(5)')};
                endTransaction(personID);
            });
        };

        function addPerson () {
            var sql = 'INSERT INTO persons VALUES(NULL,?,?,?,?,?);';
            sys.db.run(sql,[data.nameID,data.contactID,data.affiliationID,data.positionID,touchDate],function(err){
                if (err) {return oops(response,err,'event/savetopersons(6)')};
                endTransaction(this.lastID);
            });
        };

        function endTransaction (personID) {
            sys.db.run('END TRANSACTION',function(err){
                if (err) {return oops(response,err,'event/savetopersons(7)')};
                response.writeHead(200, {'Content-Type': 'application/json'});
                response.end(JSON.stringify({personID:personID}))
            });
        };
    }
    exports.cogClass = cogClass;
})();