scope in the get table command

Question

What is the meaning of scope argument in the get table command?

For example, in the todo_contract, (https://developers.eos.io/eosio-cleos/reference#cleos-get-table)

we have

cleos --wallet-url http://wallet:5555 -u http://server:7777 get table mynewaccount todo todos

The scope is todo. I just wonder where todo comes from.

One more question is how to display the rows entirely.

The get table command shows only 10 rows.

At the end, I have

  "more": true
}

How can I see the rest of the rows?

Answer 1

Meaning of scope

You can just make up a scope as you go along. As a general rule there are 3 ways to use the scope:

Globally - all table entries are kept in one scope (usually with the name of the contract)

cleos get table censuscensus global population

Groups - All table entries that are similar in some way share the same scope

cleos get table censuscensus male population

Individual - Each entry has its own scope (usually used to obfuscate or have quick access)

cleos get table censuscensus phillhamnett population

Seeing all table rows

To see all table rows, just add -l -1 (minus el, minus one) somewhere after get table.

Within smart contract

Lets say you have a typedef set up in a smart contract for a multi_index array.

typedef eosio::multi_index< eosio::name("censuscensus"), struct_for_table_goes_here > census_table;

You can set a scope when you initialize the census_table:

census_table global_table(get_self(), eosio::name("global").value);
census_table male_table(get_self(), eosio::name("male").value);
census_table individual_table(get_self(), eosio::name("phillhamnett").value);

You don't need to do anything else to start using the table with the scope other than initialize it as shown above