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library(whisker)
library(condusco)
This example shows how to simply swap out a value using the whisker library. A common use case is two users working on a the same logic, but wanting to keep their datasets separate. A namespace can be provided for each user with {{table_prefix}}, and the swap can be set in a user-specific configuration file, thereby allowing users to separate the logic of the pipelines from the user-specific configuration variables. They can commit changes to the logic in which the commits are free of their specific variables.
run_pipeline(
#the pipeline
function(params){
query <- "SELECT result FROM {{table_prefix}}_results;"
whisker.render(query,params)
},
#the swap
data.frame(
table_prefix = c('batman', 'robin')
)
)
## [1] "SELECT result FROM batman_results;"
## [2] "SELECT result FROM robin_results;"
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