Conditions | 41 |
Total Lines | 144 |
Code Lines | 132 |
Lines | 24 |
Ratio | 16.67 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Complex classes like app.cashflow.calc_schedule() often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
1 | from app import db |
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68 | def calc_schedule(): |
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69 | months = 13 |
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70 | weeks = 53 |
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71 | years = 1 |
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72 | quarters = 4 |
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73 | biweeks = 27 |
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74 | |||
75 | try: |
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76 | engine = db.create_engine(os.environ.get('DATABASE_URL')).connect() |
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77 | except: |
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78 | engine = db.create_engine('sqlite:///db.sqlite').connect() |
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79 | |||
80 | # pull the schedule information |
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81 | df = pd.read_sql('SELECT * FROM schedule;', engine) |
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82 | |||
83 | # loop through the schedule and create transactions in a table out to the future number of years |
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84 | todaydate = datetime.today().date() |
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85 | for i in range(len(df.index)): |
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86 | format = '%Y-%m-%d' |
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87 | name = df['name'][i] |
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88 | startdate = df['startdate'][i] |
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89 | firstdate = df['firstdate'][i] |
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90 | frequency = df['frequency'][i] |
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91 | amount = df['amount'][i] |
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92 | type = df['type'][i] |
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93 | existing = Schedule.query.filter_by(name=name).first() |
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94 | if not firstdate: |
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95 | existing.firstdate = datetime.strptime(startdate, format).date() |
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96 | firstdate = existing.firstdate.strftime(format) |
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97 | db.session.commit() |
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98 | if frequency == 'Monthly': |
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99 | for k in range(months): |
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100 | futuredate = datetime.strptime(startdate, format).date() + relativedelta(months=k) |
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101 | futuredateday = futuredate.day |
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102 | firstdateday = datetime.strptime(firstdate, format).date().day |
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103 | if firstdateday > futuredateday: |
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104 | try: |
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105 | for m in range(3): |
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106 | futuredateday += 1 |
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107 | if firstdateday >= futuredateday: |
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108 | futuredate = futuredate.replace(day=futuredateday) |
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109 | except ValueError: |
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110 | pass |
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111 | View Code Duplication | if futuredate <= todaydate: |
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112 | existing.startdate = futuredate + relativedelta(months=1) |
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113 | daycheckdate = futuredate + relativedelta(months=1) |
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114 | daycheck = daycheckdate.day |
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115 | if firstdateday > daycheck: |
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116 | try: |
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117 | for m in range(3): |
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118 | daycheck += 1 |
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119 | if firstdateday >= daycheck: |
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120 | existing.startdate = daycheckdate.replace(day=daycheck) |
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121 | except ValueError: |
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122 | pass |
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123 | if type == 'Income': |
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124 | rollbackdate = datetime.combine(futuredate, datetime.min.time()) |
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125 | total = Total(type=type, name=name, amount=amount, |
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126 | date=pd.tseries.offsets.BDay(1).rollback(rollbackdate).date()) |
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127 | else: |
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128 | total = Total(type=type, name=name, amount=amount, date=futuredate - pd.tseries.offsets.BDay(0)) |
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129 | db.session.add(total) |
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130 | elif frequency == 'Weekly': |
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131 | for k in range(weeks): |
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132 | futuredate = datetime.strptime(startdate, format).date() + relativedelta(weeks=k) |
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133 | if futuredate <= todaydate: |
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134 | existing.startdate = futuredate + relativedelta(weeks=1) |
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135 | total = Total(type=type, name=name, amount=amount, date=futuredate - pd.tseries.offsets.BDay(0)) |
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136 | db.session.add(total) |
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137 | elif frequency == 'Yearly': |
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138 | for k in range(years): |
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139 | futuredate = datetime.strptime(startdate, format).date() + relativedelta(years=k) |
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140 | if futuredate <= todaydate: |
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141 | existing.startdate = futuredate + relativedelta(years=1) |
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142 | total = Total(type=type, name=name, amount=amount, date=futuredate - pd.tseries.offsets.BDay(0)) |
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143 | db.session.add(total) |
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144 | elif frequency == 'Quarterly': |
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145 | for k in range(quarters): |
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146 | futuredate = datetime.strptime(startdate, format).date() + relativedelta(months=3 * k) |
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147 | futuredateday = futuredate.day |
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148 | firstdateday = datetime.strptime(firstdate, format).date().day |
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149 | if firstdateday > futuredateday: |
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150 | try: |
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151 | for m in range(3): |
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152 | futuredateday += 1 |
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153 | if firstdateday >= futuredateday: |
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154 | futuredate = futuredate.replace(day=futuredateday) |
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155 | except ValueError: |
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156 | pass |
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157 | View Code Duplication | if futuredate <= todaydate: |
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158 | existing.startdate = futuredate + relativedelta(months=3) |
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159 | daycheckdate = futuredate + relativedelta(months=3) |
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160 | daycheck = daycheckdate.day |
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161 | if firstdateday > daycheck: |
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162 | try: |
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163 | for m in range(3): |
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164 | daycheck += 1 |
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165 | if firstdateday >= daycheck: |
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166 | existing.startdate = daycheckdate.replace(day=daycheck) |
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167 | except ValueError: |
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168 | pass |
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169 | total = Total(type=type, name=name, amount=amount, date=futuredate - pd.tseries.offsets.BDay(0)) |
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170 | db.session.add(total) |
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171 | elif frequency == 'BiWeekly': |
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172 | for k in range(biweeks): |
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173 | futuredate = datetime.strptime(startdate, format).date() + relativedelta(weeks=2 * k) |
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174 | if futuredate <= todaydate: |
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175 | existing.startdate = futuredate + relativedelta(weeks=2) |
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176 | total = Total(type=type, name=name, amount=amount, date=futuredate - pd.tseries.offsets.BDay(0)) |
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177 | db.session.add(total) |
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178 | elif frequency == 'Onetime': |
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179 | futuredate = datetime.strptime(startdate, format).date() |
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180 | if futuredate < todaydate: |
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181 | db.session.delete(existing) |
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182 | else: |
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183 | total = Total(type=type, name=name, amount=amount, date=futuredate) |
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184 | db.session.add(total) |
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185 | db.session.commit() |
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186 | |||
187 | # add the hold items |
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188 | df = pd.read_sql('SELECT * FROM hold;', engine) |
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189 | for i in range(len(df.index)): |
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190 | name = df['name'][i] |
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191 | amount = df['amount'][i] |
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192 | type = df['type'][i] |
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193 | total = Total(type=type, name=name, amount=amount, date=todaydate + relativedelta(days=1)) |
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194 | db.session.add(total) |
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195 | db.session.commit() |
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196 | |||
197 | # add the skip items |
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198 | df = pd.read_sql('SELECT * FROM skip;', engine) |
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199 | for i in range(len(df.index)): |
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200 | format = '%Y-%m-%d' |
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201 | name = df['name'][i] |
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202 | amount = df['amount'][i] |
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203 | type = df['type'][i] |
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204 | date = df['date'][i] |
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205 | if datetime.strptime(date, format).date() < todaydate: |
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206 | skip = Skip.query.filter_by(name=name).first() |
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207 | db.session.delete(skip) |
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208 | else: |
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209 | total = Total(type=type, name=name, amount=amount, date=datetime.strptime(date, format).date()) |
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210 | db.session.add(total) |
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211 | db.session.commit() |
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212 | |||
301 | return minbalance, graphJSON |