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How to pass a user defined argument in scrapy spider
... every time you want to code a scrapy's spider, you could just specify the parameters as before:
scrapy crawl myspider -a parameter1=value1 -a parameter2=value2
and in your spider code you can just use them as spider arguments:
class MySpider(Spider):
name = 'myspider'
...
def parse(...
Wait for all promises to resolve
... is resolved when
all of the input promises are resolved.
The promises param can be an array of promises.
About bind(), More info here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind
...
How to turn on front flash light programmatically in Android?
...string/permdesc_flashlight" />
Then make use of Camera and set Camera.Parameters. The main parameter used here is FLASH_MODE_TORCH.
eg.
Code Snippet to turn on camera flashlight.
Camera cam = Camera.open();
Parameters p = cam.getParameters();
p.setFlashMode(Parameters.FLASH_MODE_TORCH...
How to print a query string with parameter values when using Hibernate
...nts as they are executed
org.hibernate.type - set to trace to log all JDBC parameters
So a log4j configuration could look like:
# logs the SQL statements
log4j.logger.org.hibernate.SQL=debug
# Logs the JDBC parameters passed to a query
log4j.logger.org.hibernate.type=trace
The first is equiv...
How do you redirect to a page using the POST verb?
...notherValue) {
// would probably do something non-trivial here with the param values
return View();
}
That works easily and there is no funny business really going on - this allows you to maintain the fact that the second one really only accepts HTTP POST requests (except in this instance, w...
Adding parameter to ng-click function inside ng-repeat doesn't seem to work
...description }}</div>
</div>
Note the value of ng-click. The parameter passed to goTo() is a string from a property of the binding object (the button), but it is not wrapped in quotes. Looks like AngularJS handles that for us. I got hung up on that for a few minutes.
...
Determine which JAR file a class is from
...e local file system, will find the absolute path to that jar file.
*
* @param context The jar file that contained the class file that represents this class will be found. Specify {@code null} to let {@code LiveInjector}
* find its own jar.
* @throws IllegalStateException If the s...
How to use an existing database with an Android application [duplicate]
...ed context in order to access to the application assets and resources.
* @param context
* Parameters of super() are 1. Context
* 2. Data Base Name.
* 3. Cursor Factory.
* 4. Data Base Version.
*/
public D...
Call a function with argument list in python
...def wrapper(func, *args):
The * next to args means "take the rest of the parameters given and put them in a list called args".
In the line:
func(*args)
The * next to args here means "take this list called args and 'unwrap' it into the rest of the parameters.
So you can do the following:
...
Is it possible to use raw SQL within a Spring Repository
...
@user454322, parameters start with 1, so it's: @Query(value = "SELECT * FROM USERS WHERE EMAIL_ADDRESS = ?1", nativeQuery = true)
– Jacob van Lingen
Jan 6 '17 at 9:20
...