feat: filter proposals by plugins and strategies

[wa0x6e]

This PR introduces a more robust proposal filtering by strategy and plugin name.

New filter

The current existing plugins_contains and strategies_contains are just basic string search, and will return false result.

The new introduced strategies_in and plugins_in filter will searc the JSON field by key name and value, and will only return exact matches, allowing queries such as:

query Proposals {
  proposals(first: 10, where: {plugins_in: ["aragon"]}) {
    plugins
  }
}

query Proposals {
  proposals(first: 10, where: {strategies_in: ["erc721"]}) {
    strategies { name }
  }
}

For better performance, adding an index to the JSON objects is recommended:

ALTER TABLE proposals
ADD INDEX plugin_idx ((CAST(JSON_KEYS(plugins) AS CHAR(255) ARRAY) )) 
USING BTREE;

ALTER TABLE proposals
ADD INDEX strategies_idx ((CAST(JSON_EXTRACT(strategies, "$[*].name") AS CHAR(255) ARRAY) ))
USING BTREE;

Fixing existing filter

The existing validation filter is using basic string search. It has been updated for a more robust search by JSON value.

query Proposals {
  proposals(first: 10, where: {validation: "any"}) {
    validation {
      name
    }
  }
}

Proposed index:

ALTER TABLE proposals
ADD INDEX validation_idx ((CAST(JSON_EXTRACT(validation, "$.name") AS CHAR(255)) COLLATE utf8mb4_bin )) USING BTREE;

[codecov]

Codecov Report

Attention: 12 lines in your changes are missing coverage. Please review.

Comparison is base (cf26dfe) 2.41% compared to head (6f1c334) 2.39%.

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #705      +/-   ##
=========================================
- Coverage    2.41%   2.39%   -0.02%     
=========================================
  Files          39      39              
  Lines        2032    2042      +10     
  Branches       37      37              
=========================================
  Hits           49      49              
- Misses       1946    1956      +10     
  Partials       37      37              

Files	Coverage Δ
src/graphql/operations/proposals.ts	0.00% <0.00%> (ø)

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[ChaituVR]

Refer to #704 (comment)

[wa0x6e]

Refer to #704 (comment)

The following query

query Proposals {
  proposals(first: 10, where: {strategies_in: ["poap"]}) {
    strategies {
      name
    }
  }
}

Does return proposals that partial match:

{
  "data": {
    "proposals": [
      {
        "strategies": [
          {
            "name": "poap"
          },
          {
            "name": "whitelist"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "poap"
          },
          {
            "name": "whitelist"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "poap"
          },
          {
            "name": "ticket"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "erc20-balance-of"
          },
          {
            "name": "whitelist"
          },
          {
            "name": "poap"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "whitelist"
          },
          {
            "name": "erc20-balance-of"
          },
          {
            "name": "poap"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "whitelist"
          },
          {
            "name": "erc20-balance-of"
          },
          {
            "name": "poap"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "poap"
          },
          {
            "name": "whitelist"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "poap"
          },
          {
            "name": "whitelist"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "poap"
          }
        ]
      },
      {
        "strategies": [
          {
            "name": "poap"
          }
        ]
      }
    ]
  }
}