this<\/span>.<\/span>db<\/span>.<\/span>transaction<\/span>(<\/span>function<\/span>(<\/span>tx<\/span>)<\/span> {<\/span><\/div> tx<\/span>.<\/span>executeSql<\/span>(<\/span>"CREATE TABLE IF NOT EXISTS "<\/span> +<\/span> this<\/span>.<\/span>tableName<\/span> +<\/span> " (flag REAL)"<\/span>,[],<\/span> function<\/span>(<\/span>tx<\/span>,<\/span> result<\/span>)<\/span> {<\/span><\/div> tx<\/span>.<\/span>executeSql<\/span>(<\/span>"SELECT flag FROM "<\/span> +<\/span> this<\/span>.<\/span>tableName<\/span>,<\/span> [],<\/span> function<\/span>(<\/span>tx<\/span>,<\/span> result<\/span>)<\/span> {<\/span><\/div> if<\/span> (<\/span>result<\/span>.<\/span>rows<\/span>.<\/span>length<\/span> ==<\/span> 0<\/span>)<\/span> {<\/span><\/div> tx<\/span>.<\/span>executeSql<\/span>(<\/span>"INSERT INTO "<\/span> +<\/span> this<\/span>.<\/span>tableName<\/span> +<\/span> " (flag) VALUES (1)"<\/span>,<\/span> [],<\/span> function<\/span>(<\/span>tx<\/span>,<\/span> result<\/span>)<\/span> {<\/span><\/div> <\/div>
firstTimeCallback<\/span>();<\/span><\/div> <\/div>
},<\/span> function<\/span>(<\/span>tx<\/span>,<\/span> error<\/span>)<\/span> {<\/span><\/div> Mojo<\/span>.<\/span>Log<\/span>.<\/span>error<\/span>(<\/span>"There was an error inserting into "<\/span> +<\/span> this<\/span>.<\/span>tableName<\/span> +<\/span> ": "<\/span> +<\/span> error<\/span>.<\/span>message<\/span>);<\/span><\/div> });<\/span><\/div> }<\/span> else<\/span> {<\/span><\/div> <\/div>
everyOtherTimeCallback<\/span>();<\/span><\/div> <\/div>
}<\/span><\/div><\/pre><\/div>\n \n <\/div>\n\n