I have been using and still learning query expr(). I have a complex query where I cannot use if first to check if a parameter is '' - empty string.
I have to check it inside andX with nested orX using something like:
->andWhere($expr->orX($expr->eq(':sid', ''), $expr->neq('s.id', ':sid')))
Note: I know this line can be done by using if check first, I am using it just for an example, I got error says:
Error: Expected Literal, got ' OR '
I really need to compare empty string inside expr(), how?
Because '' is not an empty string. It's nothing and so it evaluates to nothing in DQL/SQL. Normally doctrine expects an named parameter. Either you create one to get quoted empty string or supply an empty string quoted by yourself.
Named parameter:
$qb->expr->eq('foo', ':foo');
$qb->expr->setParameter('foo', '');
quoted by yourself:
$qb->expr->eq('foo', "''");
Related
I'm writing a test case in robot framework. I'm getting the response in below json string:
{"responseTimeStamp":"1970-01-01T05:30:00",
"statusCode":"200",
"statusMsg":"200",
"_object":{"id":"TS82",
"name":"newgroup",
"desc":"ttesteste",
"parentGroups":[],
"childGroups":[],
"devices":null,
"mos":null,
"groupConfigRules" {
"version":null,
"ruleContents":null
},
"applications":null,"type":0
}
}
From that I want to take "_object" using:
${reqresstr} = ${response['_object']}
... but am getting the error "No keyword with name '=' found" error
If I try the following:
${reqresstr}= ${response['_object']}
... I'm getting the error "Keyword name cannot be empty." I tried removing the '=' but still get the same error.
How can I extract '_object' from that json string?
When using the "=" for variable assignment with the space-separated format, you must make sure you have no more than a single space before the "=". Your first example shows that you've got more than one space on either side of the "=". You must have only a single space before the = and two or more after, or robot will think the spaces are a separator between a keyword and argument.
For the "keyword must not be empty" error, the first cell after a variable name must be a keyword. Unlike traditional programming languages, you cannot directly assign a string to a variable.
To set a variable to a string you need to use the Set Variable keyword (or one of the variations such as Set Test Variable). For example:
${reqresstr}= Set variable ${response['_object']}
${reqresstr}= '${response["_object"]}'
wrap it inside quotes and two spaces after =
There is a syntax error in your command. Make sure there is a space between ${reqresstr} and =.
Using your example above:
${reqresstr} = ${response['_object']}
I need to replace single quotes in a string of numbers and use in a WHERE IN clause. for example, I have
WHERE Group_ID IN (''4532','3422','1289'')
The criteria within parenthesis is being passed as a parameter, so I have no control over that. I tried using :
WHERE Group_ID IN (REGEXP_REPLACE(''4532','3422','1289'', '[']', ' ',1,0,i))
also tried using OReplace
WHERE Group_ID IN (OReplace(''4532','3422','1289'', '[']', ' '))
but get the same error:
[Teradata Database] [3707] Syntax error, expected something like ','
between a string or a Unicode character literal and the integer '4532'.
Please suggest how to remove the single enclosing quotes or even removing all single quotes should work as well.
The string ''4532','3422','1289'' you are using is incorrect because it contains non-escaped single quotes. This is a syntax error in SQL. In this particular form, no matter what function you use to fix it or which RDBMS you use, it will result in error with standard SQL.
Functions in the SQL cannot fix syntax errors. REGEXP_REPLACE and OReplace never get executed because the query never enters the execution state. It never goes past the SQL syntax parser.
To see the error from perspective of the SQL parser, you may break the string in to multiple parts
'' -- SQL Parser sees this as a starting and ending quote and hence an empty string
4532 -- Now comes what appears to SQL parser as an integer value
',' -- Now this is a pair of quotes containing a single comma
3422 -- Again an integer
',' -- Again a comma
1289 -- Again integer
'' -- Again emtpy string
This amalgam of strings and numbers will not mean anything to the SQL parser and will result in an error.
Fix
The fix is to properly escape the data. Single quotes must be escaped using another preceding single quote. So correct string in this scenario becomes '''4532'',''3422'',''1289'''
Another thing is that the OReplace usage (once syntax is fixed) is like OReplace(yourStringValueHere, '''', ' ')) Observe the usage of escaped single quote here. Two outer quotes are for the string start and end. First inner quote is the escape character and second inner quote is the actual data passed to the function.
TALES expression is new to me. Can I get some good reference for the same? Actually I wish to define a content rule for numeric input field using ploneformgen. Something like:
python: request.form.get('amt', False) <= 5000
then apply the rule.
Here 'amt' is a numeric/whole number field on the input form.
For reference, you should look at the official TALES specification, or refer to the TALES section of the Zope Page Templates reference.
In this case, you are using a plain python expression, and thus the normal rules of python code apply.
The expression request.form.get('amt', False) would return the request parameter 'amt' from the request, and if that's missing, return the boolean False, which you then compare to an integer value.
There are 2 things wrong with that expression: first of all you assume that the 'amt' parameter is an integer value. Even a PFG integer field however, is still a string in the request object. As such you'll need to convert in to an integer first before you can compare it.
Also, you fall back to a boolean, which in integer comparisons will be regarded as the equivalent of 0, better be explicit and use that instead:
python: int(request.form.get('amt', 0)) <= 5000
Note that for a PFG condition, you can also return a string error message instead of boolean True:
python: int(request.form.get('amt', 0)) <= 5000 or 'Amount must be not be greater than 5000'
Usually form parameters are passed in as strings if they are not defined on the application level otherwise e.g.
Zope will under the hood use the fieldname amt:int in order to convert the value to an integer.
So you may want to try to put an int(....) around the first expression.
I run exe from my asp.net with JavaScript using ActiveXObject. It runs successfully, except parameters:
function CallEXE() {
var oShell = new ActiveXObject("Shell.Application");
var prog = "C:\\Users\\admin\\Desktop\\myCustom.exe";
oShell.ShellExecute(prog,"customer name fullname","","open","1");
}
Example, I pass that like parameters,[1] customer name,[2] fullname, but after space character, Javascript perceive different parameter.
How can I fix?
ShellExecute takes the 2nd parameter to be a string that represents all the arguments and processes these using normal shell processing rules: spaces and quotes, in particular.
oShell.ShellExecute(prog,"customer name fullname",...)
In this case the 3 parameters that are passed are customer, name, fullname
oShell.ShellExecute(prog,"customer 'a name with spaces' fullname",...)
As corrected/noted by Remy Lebeau - TeamB, double-quotes can be used to defined argument boundaries:
oShell.ShellExecute(prog,'customer "a name with spaces" fullname',...)
In this case the 3 parameters that are passed are customer, a name with spaces, fullname
That is, think of how you would call myCustom.exe from the command-prompt. It's the same thing when using ShellExecute.
Happy coding.
Try escaping your spaces with a backslash. The cmd.exe cd command does this, maybe you'll get lucky and it'll work here as well...
oShell.ShellExecute(prog,"customer a\ name\ with\ spaces fullname", ...)
Hi ive got this regular expression and that extracts numbers from a string
string.Join(null,System.Text.RegularExpressions.Regex.Split(expr, "[^\\d]"));
so eg, the format of my string is like this strA:12, strB:14, strC:15
so the regex returns 121415
how can I modify the expression to return
12,14,15 instead, any suggestions please
You're calling String.Join, which joins an array of strings into a single string, separating each element by the separator parameter.
Since you're passing null as that parameter, it doesn't put anything between the strings.
You need to pass ", " instead of null to separate each string with ,.