Class: SlimScrooge::ResultSet
- Inherits:
-
Object
- Object
- SlimScrooge::ResultSet
- Defined in:
- lib/slim_scrooge/result_set.rb
Overview
A ResultSet contains all the rows found by an sql query A call to reload! will cause all the rows in the set to be fully loaded from the database - this should be called when a column access that hasn’t previously been seen by SlimScrooge is encountered
Instance Attribute Summary collapse
-
#callsite_key ⇒ Object
readonly
Returns the value of attribute callsite_key.
-
#rows ⇒ Object
readonly
Returns the value of attribute rows.
Instance Method Summary collapse
-
#initialize(rows, callsite_key, fetched_columns) ⇒ ResultSet
constructor
A new instance of ResultSet.
-
#reload! ⇒ Object
Reload all the rows in the sql result at once Reloads only those columns we didn’t fetch the first time.
- #rows_by_key(key) ⇒ Object
Constructor Details
#initialize(rows, callsite_key, fetched_columns) ⇒ ResultSet
Returns a new instance of ResultSet.
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# File 'lib/slim_scrooge/result_set.rb', line 12 def initialize(rows, callsite_key, fetched_columns) @rows = rows @callsite_key = callsite_key @fetched_columns = fetched_columns end |
Instance Attribute Details
#callsite_key ⇒ Object (readonly)
Returns the value of attribute callsite_key.
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# File 'lib/slim_scrooge/result_set.rb', line 10 def callsite_key @callsite_key end |
#rows ⇒ Object (readonly)
Returns the value of attribute rows.
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# File 'lib/slim_scrooge/result_set.rb', line 10 def rows @rows end |
Instance Method Details
#reload! ⇒ Object
Reload all the rows in the sql result at once Reloads only those columns we didn’t fetch the first time
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# File 'lib/slim_scrooge/result_set.rb', line 25 def reload! callsite = Callsites[@callsite_key] rows_hash = rows_by_key(callsite.primary_key) sql = callsite.reload_sql(rows_hash.keys, @fetched_columns) new_rows = callsite.connection.send(:select, sql, "#{callsite.model_class_name} Reload SlimScrooged") new_rows.each do |row| if old_row = rows_hash[row[callsite.primary_key]] old_row.result_set = nil old_row.monitored_columns.merge!(row) end end end |
#rows_by_key(key) ⇒ Object
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# File 'lib/slim_scrooge/result_set.rb', line 18 def rows_by_key(key) @rows.inject({}) {|hash, row| hash[row[key]] = row; hash} end |