how to to find a string in groovy list - grails

question from a groovy newbie:
sql is initiated as follows
final Binding binding = new Binding();
binding.setProperty("sql", sql);
final groovy.sql.Sql sql = Sql.newInstance(dbConfig.getUrl(), dbConfig.getUserName(), dbConfig.getPasswd(),"oracle.jdbc.OracleDriver");
I am running a query in groovy like this
def listOfRows = sql.rows (select column1 from table1);
listOfRows when printed shows contents like [[column1_name:value1], [column1_name:value2], [column1_name:value3]]
I want to check if value2 (a String) exists in the returned list of values from the above query.
I have tried doing listOfRows.contains('value2') and listOfRows.find('value2'),
it complains that the method does not exist for lists..
what's the best way of doing this ?
EDITED: I have corrected the list of printed values. What's being returned is List<GroovyResultSet>
and I have also added the definition of sql.

I would suggest you to take a look at groovy documentation, and particularly to collections documentation (both tutorial and JDK/GDK).
in that case, the most specifically adapted solution would be to use Collection#find() ... with something like
listOfRows.find { it.contains(':value2') }
Which can be translated into human-readable
find the first element in this collection which string contains ":value2".

You probably want
listOfRows.column1.contains( 'value2' )

You are probably invoking this method which takes a GString (note that GString != String) as an argument. According to this question, a string in single quotes is a standard java string, and a string in double quotes is a templatable string.
'hello' //java.lang.String
"hello" //groovy.lang.GString
Try this:
listOfRows.contains("value2")

what i ended up doing is following :
iterate the listOfRows, get all the values for column1 from each GroovyResultSet into a listOfValues ,then check for my values in that list.
def listOfValues=[];
listOfRows.collect(listOfValues){it.getAt('column1')};
if(listOfValues.size()==3){
println('success');
}

Related

QAF -how to print /access common step Store () value into variable

I am new to QAF. I m using common steps to store value into one variable and need to assert one locator has that value.
store(Object val, String var);
store(2000, “currnetBalance”);
I need to do below activity.
System.out.println(${varname})
How to pass asserttext(“//#[availableText]”, ${varname})
I tried to pass single quotes, double quotes, concatenate string not able to print result.
you can access stored variable from configuration manager. Use ConfigurationManager.getBundle() to access them in code. For example:
import static com.qmetry.qaf.automation.core.ConfigurationManager.getBundle;
String val = getBundle().getString("varname");
Object val = getBundle().getObject("varname");

F# constructor with <"string", str>

In this article it shows how to use the SqlCommandProvider type. The sample code has this:
use cmd = new SqlCommandProvider<"
SELECT TOP(#topN) FirstName, LastName, SalesYTD
FROM Sales.vSalesPerson
WHERE CountryRegionName = #regionName AND SalesYTD > #salesMoreThan
ORDER BY SalesYTD
" , connectionString>(connectionString)
what does the <... ,...> before the type constructor name mean and why the the
first parameter have to be a string literal? It looks like a generic but it's taking variables not types. The constructor seems to be taking in a connection string already in the <> section.
The angle brackets are the configuration for a type.
In your example, you are defining a type and creating an instance at the same type. It's clearer when the steps are separated.
Define a type.
type SalesPersonQuery = SqlCommandProvider<query, connectionString>
But to actually have an instance of the type you have to create it:
let command = new SalesPersonQuery()
Now you can use the command.Execute() rather then SalesPersonQuery.Execute().
The reason there is a constructor is because later on (at run-time) you can change the connection string to a different then the one provided in the definition, so for instance:
let command = new SalesPersonQuery(differentConnectionString)
You can find that in the documentation in configuration section:
Connection string can be overridden at run-time via constructor optional parameter
First parameter can be a path to a SQL script or a SQL query. I suppose that's the reason it's a string: how else would you like to define a SQL query?
Again, from the documentation:
Command text (sql script) can be either literal or path to *.sql file

Correct variable binding and avoiding SQL injection with SQLite.swift queries

The SQLite.swift documentation for filtered queries gives this example:
users.filter(email.like("%#mac.com"))
// SELECT * FROM "users" WHERE ("email" LIKE '%#mac.com')
Since I want to search the database based on user input, I guess I could do the following:
let stringPrefix = userInput + "%"
users.filter(email.like(stringPrefix))
// SELECT * FROM "users" WHERE ("email" LIKE 'johndoe%')
Am I going about this the right way? With other SQLite environments in the past I have used variable binding with ? to avoid SQL injection. Is this done behind the scenes with SQLite.swift? I didn't see any information in the documentation except for a little bit about binding in the Executing Arbitrary SQL section.
Taken from this source file :
#warn_unused_result public func like(pattern: String, escape character: Character? = nil) -> Expression<Bool> {
guard let character = character else {
return "LIKE".infix(self, pattern)
}
return Expression("(\(template) LIKE ? ESCAPE ?)", bindings + [pattern, String(character)])
}
This is just one of the overloads of the like function. The other overload looks quite similar, and does indeed also use parameter binding. Have a stroll in the source code to verify this yourself.
However, I would expect for you to have you internal tests to verify that SQLite injections are not possible.

Lua script for scan with 'match' and 'count' constraints

I am using Jedis. I need a Lua script to scan for a pattern with a specified limit. I don't know how to pass the parameters inside Lua script.
Sample Code:
String script="return {redis.call('SCAN',KEYS[1],'COUNT',KEYS[2],'MATCH',KEYS[3]}";
List<String> response = (List<String>)jedis.eval(script,cursor,COUNT,pattern);
How do I pass these parameters to the script?
Your code has several points to fix.
In scan command, 'match' parameter should be placed prior to 'count'.
You should only use KEYS when it is a place for Redis key. Other things should be represented to ARGV.
You forgot to specify key count while calling Jedis.eval().
So, fixed version of your code is,
String script="return {redis.call('SCAN',ARGV[1],'MATCH',ARGV[2],'COUNT',ARGV[3])}";
List<String> response = (List<String>)jedis.eval(script, 0, cursor, pattern, COUNT);
But I agree Itamar to use Jedis.scan() instead.
Hope this helps.

[Grails/Groovy]minimum value of Map entries

Query: how can i pull minimum value from a map in Grails
So far i have found following code to get minimum value from a map in groovy
["Java":1, "Groovy":4, "JavaScript":2].min{it.value}
but it donot work in Grails
i have tried following piece of code
def map = ["Java":1, "Groovy":4, "JavaScript":2]
println map.min{it.value}
assert map.min{it.value}==1
Thanks in advance
If you want the minimum value from the map, you can do:
def map = ["Java":1, "Groovy":4, "JavaScript":2]
println map.values().min()
assert map.values().min() == 1
edit
Also, the closure accepting version of map.min has been in Groovy since 1.7.6, and Grails (as of v1.3.6) uses Groovy 1.7.5
min() doesn't return a minimum value returned by argument closure, it returns the element of a collection for which the closure returns minimum.
map.min {it.value} is valid call, but it's not a value. It's a MapEntry, with key and value properties. So map.min{it.value}.value would do.

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