Class: MarkdownServer::CsvBrowser::RowContext

Inherits:
Object
  • Object
show all
Defined in:
lib/markdown_server/csv_browser/row_context.rb

Overview

Context object passed to add-on action blocks. Exposes the active row/table/options/input/state and provides table read/write primitives that all flow through TableReader (so validation and CSV writes behave exactly like the row-editor path).

A RowContext represents one HTTP invocation. For a multi-round prompt, a fresh RowContext is created per POST; state is what carries data across rounds (round-tripping through the client).

Defined Under Namespace

Classes: StateHash

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(database:, table:, row_index:, row:, options: {}, input: nil, state: nil) ⇒ RowContext

Returns a new instance of RowContext.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 18

def initialize(database:, table:, row_index:, row:, options: {}, input: nil, state: nil)
  @database = database
  @table = table
  @row_index = row_index
  @row = row || {}
  @options = options || {}
  @input = symbolize_keys(input)
  @state = StateHash.wrap(state)
end

Instance Attribute Details

#database ⇒ Object (readonly)

Returns the value of attribute database.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 16

def database
  @database
end

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 16

def input
  @input
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 16

def options
  @options
end

#row ⇒ Object (readonly)

Returns the value of attribute row.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 16

def row
  @row
end

#row_index ⇒ Object (readonly)

Returns the value of attribute row_index.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 16

def row_index
  @row_index
end

#state ⇒ Object (readonly)

Returns the value of attribute state.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 16

def state
  @state
end

#table ⇒ Object (readonly)

Returns the value of attribute table.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 16

def table
  @table
end

Instance Method Details

#delete_row(table_name, row_index) ⇒ Object 



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 54

def delete_row(table_name, row_index)
  reader = TableReader.new(resolve_table!(table_name))
  reader.delete_row(row_index)
end

#done(reload: true) ⇒ Object 



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 65

def done(reload: true)
  { kind: "done", reload: reload }
end

#error(message, fields: nil) ⇒ Object 



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 69

def error(message, fields: nil)
  h = { kind: "error", message: message }
  h[:fields] = fields if fields
  h
end

#insert_row(table_name, values, at: nil) ⇒ Object 



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 44

def insert_row(table_name, values, at: nil)
  reader = TableReader.new(resolve_table!(table_name))
  reader.insert_row(stringify_values(values), at: at)
end

#prompt(title:, fields:, state: {}) ⇒ Object

Return-value helpers — each produces the shape the HTTP layer will serialize back to the client.



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 61

def prompt(title:, fields:, state: {})
  { kind: "prompt", title: title, fields: fields, state: stringify_state(state) }
end

#read_table(table_name, where: {}) ⇒ Object

List rows from any table in this database. Returns an array of plain hashes keyed by column name (strings).



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 30

def read_table(table_name, where: {})
  t = resolve_table(table_name)
  return [] unless t && File.exist?(t.csv_path)

  rows = []
  CSV.foreach(t.csv_path, headers: true) do |row|
    h = row.to_h
    next unless where.empty? || where.all? { |k, v| h[k.to_s].to_s == v.to_s }

    rows << h
  end
  rows
end

#update_row(table_name, row_index, changes) ⇒ Object 



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# File 'lib/markdown_server/csv_browser/row_context.rb', line 49

def update_row(table_name, row_index, changes)
  reader = TableReader.new(resolve_table!(table_name))
  reader.update_row(row_index, stringify_values(changes))
end