Update README.md
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README.md
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README.md
@ -28,7 +28,7 @@ All documentation can be read as a sequential tutorial.
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### Step1: Start
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To load the database you must import reliable_db and start it.
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To load the database you must import `fiable_db` and start it.
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```python
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import fiable_db
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@ -39,7 +39,7 @@ fiable_db.start()
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It will create a file named `fiable_db.json` in the current directory. If you want to change the name of the file, you can do it by passing the name as a parameter.
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```python
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fiable_db.start("my_db.json")
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fiable_db.start(file="my_db.json")
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```
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If the file already exists, it will be loaded. Nothing is deleted here!
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@ -66,7 +66,7 @@ fiable_db.add(
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# [
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# {"id": 2, "rev": 1, "data": {{"name": "Noelia", "age": 34, "height": 165}},
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# {"id": 3, "rev": 1, "data": {{"name": "Juan", "age": 41, "height": 187}},
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# {"id": 4, "rev": 1, "data": {{"name": "Valentina", "age": 83, "height": 172}},
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# {"id": 4, "rev": 1, "data": {{"name": "Valentina", "age": 12, "height": 142}},
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# ]
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```
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@ -79,21 +79,21 @@ fiable_db.update(4, {"age": 21})
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# {"id": 4, "rev": 2, "data": {{"name": "Valentina", "age": 21, "height": 172}}
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```
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Add new key:
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If the key does not exist, it will be added:
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```python
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fiable_db.update(4, {"is_active": True})
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# {"id": 4, "rev": 3, "data": {{"name": "Valentina", "age": 21, "height": 172, "is_active": True}}
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```
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Delete key:
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To delete a key you only have to give it a value `None`.
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```python
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fiable_db.update(4, {"height": None})
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# {"id": 4, "rev": 4, "data": {{"name": "Valentina", "age": 21, "is_active": True}}
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```
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Forcing new structure.
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To overwrite the dictionary, use the `force=True`:
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```python
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fiable_db.update(4, {"name": "Javier", "email": "foo@example.com"}, force=True)
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@ -102,8 +102,17 @@ fiable_db.update(4, {"name": "Javier", "email": "foo@example.com"}, force=True)
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### Step 4: Delete
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You can be specific by using the `id`.
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```python
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fiable_db.delete(4)
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fiable_db.delete(id=4)
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# {"id": 4, "rev": 6, "data": None}
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```
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And you can delete by performing a search for their values:
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```python
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fiable_db.delete(data={"name": "Javier"})
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# {"id": 4, "rev": 6, "data": None}
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```
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@ -116,7 +125,7 @@ fiable_db.find_one(id=2)
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# {"id": 2, "rev": 1, "data": {{"name": "Noelia", "age": 34, "height": 165}}
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```
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Search by value.
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Search by value. It will give you the first match.
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```python
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fiable_db.find_one(data={"name": "Noelia"})
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@ -130,7 +139,7 @@ fiable_db.find_one(data={"name": "Noelia", "age": 34})
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# {"id": 2, "rev": 1, "data": {{"name": "Noelia", "age": 34, "height": 165}}
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```
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No results.
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If there are no results it will return a None.
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```python
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fiable_db.find_one(data={"name": "Noelia", "is_active": False})
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@ -148,16 +157,25 @@ fiable_db.find_all(data={"age": 41})
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# ]
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```
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If no results are found it will return an empty list.
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```python
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fiable_db.find_all(data={"age": 88})
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# []
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```
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### Step 7: See previous revisions
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Previous version to be deleted.
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At any time you can view the previous information of any row using the `rev` parameter.
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Example: Previous version to be deleted.
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```python
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fiable_db.find_one(id=4, rev=3)
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# {"id": 4, "rev": 3, "data": {{"name": "Valentina", "age": 21, "height": 172, "is_active": True}}
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```
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You can also use negative numbers.
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For convenience, you can use negative numbers. `-1` will be the previous state, `-2` is 2 states back, etc.
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```python
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fiable_db.find_one(id=4, rev=-1)
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@ -169,7 +187,7 @@ fiable_db.find_one(id=4, rev=-2)
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### Step 8: Working with tables or collections.
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You can create as many tables as you want. The default table is called `default`. If you want to work in another area, just use the `table` attribute in any of the above functions.
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You can create as many tables as you want. The default table is called `default`. If you want to work in another table, just use the `table` attribute in any of the above functions.
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```python
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fiable_db.add({"name": "Luciano", "age": 54, "height": 165}, table="users")
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