Add GetFieldBlock methods to remove fields from final result set

dist/squel-basic.js

@@ -1571,6 +1571,44 @@ function _buildSquel() {
           options: options
         });
       }
+
+      /**
+      # Remove the given field from the final result set.
+      # 
+      */
+
+    }, {
+      key: 'removeField',
+      value: function removeField(field) {
+        field = this._sanitizeField(field);
+
+        // search by alias
+        var index = this._fields.findIndex(function (f) {
+          return f.alias === field;
+        });
+
+        if (index === -1) {
+          // search by name
+          index = this._fields.findIndex(function (f) {
+            return f.name === field;
+          });
+        }
+
+        if (index !== -1) {
+          this._fields.splice(index, 1);
+        }
+      }
+
+      /**
+      # Remove all fields from the final result set.
+      # 
+      */
+
+    }, {
+      key: 'removeAllFields',
+      value: function removeAllFields() {
+        this._fields = [];
+      }
     }, {
       key: '_toParamString',
       value: function _toParamString() {

dist/squel.js

@@ -1571,6 +1571,44 @@ function _buildSquel() {
           options: options
         });
       }
+
+      /**
+      # Remove the given field from the final result set.
+      # 
+      */
+
+    }, {
+      key: 'removeField',
+      value: function removeField(field) {
+        field = this._sanitizeField(field);
+
+        // search by alias
+        var index = this._fields.findIndex(function (f) {
+          return f.alias === field;
+        });
+
+        if (index === -1) {
+          // search by name
+          index = this._fields.findIndex(function (f) {
+            return f.name === field;
+          });
+        }
+
+        if (index !== -1) {
+          this._fields.splice(index, 1);
+        }
+      }
+
+      /**
+      # Remove all fields from the final result set.
+      # 
+      */
+
+    }, {
+      key: 'removeAllFields',
+      value: function removeAllFields() {
+        this._fields = [];
+      }
     }, {
       key: '_toParamString',
       value: function _toParamString() {

src/core.js

@@ -1209,6 +1209,37 @@ function _buildSquel(flavour = null) {
       });
     }
 
+    /**
+    # Remove the given field from the final result set.
+    # 
+    */
+    removeField (field) {
+      field = this._sanitizeField(field);
+
+      // search by alias
+      let index = this._fields.findIndex((f) => {
+        return f.alias === field;
+      });
+
+      if (index === -1) {
+        // search by name
+        index = this._fields.findIndex((f) => {
+          return f.name === field;
+        });
+      }
+
+      if (index !== -1) {
+        this._fields.splice(index, 1);
+      }
+    }
+
+    /**
+    # Remove all fields from the final result set.
+    # 
+    */
+    removeAllFields () {
+      this._fields = [];
+    }
 
     _toParamString (options = {}) {
       let { queryBuilder, buildParameterized } = options;

test/blocks.test.coffee

@@ -499,6 +499,35 @@ test['Blocks'] =
 
         assert.same expected, @inst._fields
 
+      'remove inputs': -> 
+        @inst.field('field1')
+        @inst.field('field2', 'alias2')
+        @inst.field('field1', 'alias1')
+
+        @inst.removeField('alias1')
+        @inst.removeField('field2')
+
+        expected = [
+          {
+          name: 'field1',
+          alias: null
+          options: {},
+          }
+        ]
+
+        assert.same expected, @inst._fields
+
+      'remove all inputs': -> 
+        @inst.field('field1')
+        @inst.field('field2', 'alias2')
+        @inst.field('field1', 'alias1')
+
+        @inst.removeAllFields()
+
+        expected = []
+
+        assert.same expected, @inst._fields
+
     'field() - discard duplicates':
       'saves inputs': ->
         @inst.field('field1')