I'm writing a backup job, and need to fetch all classes in Parse-server, so I can then query all rows and export them.
How do I fetch all classes?
Thanks
Query the schemas collection.
GET /parse/schemas
Probably need to use the masterkey on the query. Not sure what language you're writing your job in but should be simple for you to create a REST query or create a node.js script and use the javascript/node api
--Added after comment below --
var Parse = require('parse/node').Parse;
Parse.serverURL = "http://localhost:23740/parse";
Parse.initialize('APP_ID', 'RESTKEY', 'MASTERKEY');
var Schema = Parse.Object.extend("_SCHEMA");
var query = new Parse.Query(Schema);
query.find({
success : (results) => {
console.log(JSON.stringify(results));
},
error : (err) => {
console.log("err : " + JSON.stringify(err));
}});
Related
I am using sqlite database in Flutter. with provide and sqlite libraries. I want to get ordered list of String in the database when I get the list from sqlite. How can I achieve this? Thank you for your response!
You can use orderBy variable inside query method like this:
Future<List<SingleShiftModel>> getShiftModelsForParticularGroup(
String groupId) async {
Database db = await database;
final List<Map<String, dynamic>> maps = await db.query(
allShiftsTableName,
where: 'parentId = ?',
orderBy: "date ASC", // here you can add your custom order exactly like sqlite but EXCLUDE `ORDER BY`.
whereArgs: [groupId],
);
return List.generate(
maps.length,
(i) => SingleShiftModel.toShiftModelObject(maps[i]),
);
}
I am using Node and Express with MSNODESQLV8 to write an API demo (my first) to get some rows from a remote SQL Server instance. My other get queries work fine when searching for an ID which is a number but I am unsure how to pass a value in the form of characters to a parameter in my query. Pretty sure req.params.id is not appropriate.
app.get("/productsname/:id", (req, res) => {
const productName = req.params.id;
const productsNameQuery = "SELECT * FROM Products WHERE ProductName = ?";
sql.query(connStr, productsNameQuery, [productName], (err, rows) => {
if (err) {
console.log(`Failed to get product by id ${req.params.id}. ${err}`);
res.sendStatus(500);
}else {
res.json(rows);
}
})
});
I want to take a product name (string?) in at the end of the url where it reads "id" and pass it as a value to the productName const. The end goal is to retrieve all rows from the SQL table where the product name is "processor" in the get url (http://localhost:2000/productname/proccesor). Perhaps I am passing the url incorrectly?
Apologies if this is really basic. I am very new to this.
Thanks in advance
How can i dynamically change the selected columns in the generated sql query when using a linq expression?
Its a new session for each time the query is executed.
Even when I set the MapExp as null after first creation an then changing the bool value to false, it still generates the column in the sql query.
The code runs in a wpf application.
System.Linq.Expressions.Expression<Func<Entity, Model>> MapExp = x => new Model
{
Id=xId,
Count= LoadFormulaField ? x.Count: null,
...
};
var result = session.Query<Entity>().Select(MapExp))
Your problem seems to be the ternary-conditional as part of the expression which is causing the "Count" column to always be queried.
One option to avoid this could be:
var query = session.Query<Entity>();
IQueryable<Model> result = null;
if (LoadFormulaField)
{
result = query.Select(x => new Model
{
Id = x.Id,
Count = x.Count,
});
}
else
{
result = query.Select(x => new Model
{
Id = x.Id,
});
}
Which would get a little less ugly if you separate in a couple of methods I think.
Team I'm trying to set the answer query in an answer into bot microsoft framework
This is what I do:
request = new Request(
"Here the string that returns me a number for example 763",
function(err, rowCount, rows)
{
console.log(rowCount + ' row(s) returned');
process.exit();
}
);
request.on('row', function(columns) {
columns.forEach(function(column) {
**session.send(column.value);
next();**
});
});
connection.execSql(request);
The consult is ok, but I get the error :
cannot create property 'type' on number
For me Session.send is the way to send a message to the user from bot framewok emulator.
Error - in Sql query syntax erorr:
"SELECT Medicina.Nombre FROM Medicina where='Aspirina'"
Change column name below query:
"SELECT Medicina.Nombre FROM Medicina where column_name='Aspirina'"
I have to list the tables for a given database using RoseDB . I know the mysql command for it :
SHOW TABLES in DB_NAME;
How do I implement this in rose DB ? Pleas help
It's not really a Rose::DB-specific question. Simply use the database handle how you would normally in DBI:
package My::DB {
use Rose::DB;
our #ISA = qw(Rose::DB);
My::DB->register_db(
domain => 'dev',
type => 'main',
driver => 'mysql',
...
);
My::DB->default_domain('dev');
My::DB->default_type('main');
}
use Carp;
my $db = My::DB->new();
my $sth = $db->dbh->prepare('SHOW TABLES');
$sth->execute || croak "query failed";
while (my $row = $sth->fetchrow_arrayref) {
print "$row->[0]\n";
}