Implement no-collateral funding

[abitmore]

Resolves #2351.

Contents

1 new object type

• samet_fund_object

5 new operations

• samet_fund_create_operation
• samet_fund_delete_operation
• samet_fund_update_operation
• samet_fund_borrow_operation
• samet_fund_repay_operation

1 new program startup option

• api-limit-get-samet-funds

3 new database APIs

• list_samet_funds( limit, start_id )
• get_samet_funds_by_owner( account_name_or_id, limit, start_id )
• get_samet_funds_by_asset( asset_symbol_or_id, limit, start_id )

P.S. Refactored some code to fix build issues and code smells.

Code:

bitshares-core/libraries/app/include/graphene/app/database_api.hpp

Lines 791 to 845 in 564de55

	/////////////////////
	/// SameT Funds
	/// @{
	/**
	* @brief Get a list of SameT Funds
	* @param limit The limitation of items each query can fetch, not greater than a configured value
	* @param start_id Start SameT Fund id, fetch items whose IDs are greater than or equal to this ID
	* @return The SameT Funds
	*
	* @note
	* 1. @p limit can be omitted or be null, if so the default value 101 will be used
	* 2. @p start_id can be omitted or be null, if so the api will return the "first page" of data
	* 3. can only omit one or more arguments in the end of the list, but not one or more in the middle
	*/
	vector<samet_fund_object> list_samet_funds(
	const optional<uint32_t>& limit = 101,
	const optional<samet_fund_id_type>& start_id = optional<samet_fund_id_type>() )const;
	/**
	* @brief Get a list of SameT Funds by the name or ID of the owner account
	* @param account_name_or_id name or ID of the owner account
	* @param limit The limitation of items each query can fetch, not greater than a configured value
	* @param start_id Start SameT Fund id, fetch items whose IDs are greater than or equal to this ID
	* @return The SameT Funds
	*
	* @note
	* 1. if @p account_name_or_id cannot be tied to an account, an error will be returned
	* 2. @p limit can be omitted or be null, if so the default value 101 will be used
	* 3. @p start_id can be omitted or be null, if so the api will return the "first page" of data
	* 4. can only omit one or more arguments in the end of the list, but not one or more in the middle
	*/
	vector<samet_fund_object> get_samet_funds_by_owner(
	const std::string& account_name_or_id,
	const optional<uint32_t>& limit = 101,
	const optional<samet_fund_id_type>& start_id = optional<samet_fund_id_type>() )const;
	/**
	* @brief Get a list of SameT Funds by the symbol or ID of the asset type
	* @param asset_symbol_or_id symbol or ID of the asset type
	* @param limit The limitation of items each query can fetch, not greater than a configured value
	* @param start_id Start SameT Fund id, fetch items whose IDs are greater than or equal to this ID
	* @return The SameT Funds
	*
	* @note
	* 1. if @p asset_symbol_or_id cannot be tied to an asset, an error will be returned
	* 2. @p limit can be omitted or be null, if so the default value 101 will be used
	* 3. @p start_id can be omitted or be null, if so the api will return the "first page" of data
	* 4. can only omit one or more arguments in the end of the list, but not one or more in the middle
	*/
	vector<samet_fund_object> get_samet_funds_by_asset(
	const std::string& asset_symbol_or_id,
	const optional<uint32_t>& limit = 101,
	const optional<samet_fund_id_type>& start_id = optional<samet_fund_id_type>() )const;
	/// @}

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
27 Code Smells

77.1% Coverage
2.2% Duplication