diff options
author | Matthias Beyer <mail@beyermatthias.de> | 2016-02-03 16:26:01 +0100 |
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committer | Matthias Beyer <mail@beyermatthias.de> | 2016-02-07 01:45:06 +0100 |
commit | bcf8cf0447084f9ddb94312891cabc6fcce16c0d (patch) | |
tree | 305e9a449718b75370ee2df90a65b08b35616448 /libimagentryfilter | |
parent | 780410f29dd2e1bd91b3c75502b3916013e2252e (diff) |
Add builtin header check: Field is empty
Diffstat (limited to 'libimagentryfilter')
-rw-r--r-- | libimagentryfilter/src/builtin/header/field_isempty.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libimagentryfilter/src/builtin/header/field_isempty.rs b/libimagentryfilter/src/builtin/header/field_isempty.rs new file mode 100644 index 00000000..83f74984 --- /dev/null +++ b/libimagentryfilter/src/builtin/header/field_isempty.rs @@ -0,0 +1,45 @@ +use libimagstore::store::Entry; + +use builtin::header::field_path::FieldPath; +use filter::Filter; + +use toml::Value; + +pub struct FieldIsEmpty { + header_field_path: FieldPath, +} + +impl FieldIsEmpty { + + pub fn new(path: FieldPath) -> FieldIsEmpty { + FieldIsEmpty { + header_field_path: path, + } + } + +} + +impl Filter for FieldIsEmpty { + + fn filter(&self, e: &Entry) -> bool { + let header = e.get_header(); + self.header_field_path + .walk(header) + .map(|v| { + match v { + Value::Array(a) => a.is_empty(), + Value::Boolean(_) => false, + Value::Float(_) => false, + Value::Integer(_) => false, + Value::String(_) => false, + Value::Table(t) => t.is_empty(), + _ => true, + } + }) + .unwrap_or(false) + } + +} + + + |